INDEX
o Acknowledgment
o INTRODUCTION
o SARAS SPICES
o FOOD AND DRUG ADMINISTRATION (FDA) of USA
o Hazard Analysis and Critical Control Point (HACCP)
o AGMARK of INDIA
o SPICES BOARD OF INDIA
o SPICE HOUSE CERTIFICATE
o Product of saras spices
o Processing of some spices is given below:
· Black Pepper
· CARDAMOM
· CHILLIES
· Turmeric
o Processing flow chart
o Spices testing and inspection
· Colour value of chillis & chilli oleoresin

· Ash analysis
· Moisture Analysis
· Volatile oil content (VOC)
· Non volatile ether extract (NVEE)
· Microscopic method for the detection of starch other than turmeric starch
· Determination of salt
· Commercial sterility
· Commercial sterility test
· Example for some lab tests


ACKNOWLEDGEMENT
At the very outset we are very much grateful to God for his blessings showed up on us.
We wish to acknowledge our sincere gratitude to Fr.Joseph kollamparambil, Principal, St.George’s College, Aruvithura.
We are grateful to Mrs.Mini Michael,
Head of department Food science & Quality Control and all teachers
for the facilities and guidance to us for accomplish this training.
We would like to express our sincere thanks to Mr. Boby M Jacob (MD),Mathi P E (Plant Manager), for their encouragement and giving us a chance to enter into the spices industry.
We are indebted to record our heartful thanks to Mrs. Jasmi Shalu(Microbiologist), Mr Renjith Jinadevan (Chemist), Mr Jaymon Joseph Chacko (R & D)
We extent our extreme thanks to supervisors and the operators of each section for sharing their ideas with us.
NAZEEB V.P
JEFFIN THANKACHAN
INTRODUCTION
Sara
Spices, a sister concern of the trusted Kerala household name of Anna
Aluminium, is in its silver jubilee year. The group founder Mr. M.C.
Jacob named the company after his maternal aunt who always used to
encourage him in his endeavors. When the company was inaugurated by the
then Chief Minister of Kerala, Mr. P.K.Vasudevan Nair, there were few
other curry powder manufacturers in the state. Now there are more than
250 different curry powder units of varying sizes. But the uniqueness of
Saras lies in the fact that it has stood by the commitment to
non-adulteration and high quality, as a crowning point of which the
company retained the Agmark certification of Government of India all
these years since inception.
As
the curry powder revolution was spearheaded in Kerala 25 years back by
Saras, so it is quite logical that Saras is again the first to bring out
RTC gravies and RTE foods in traditional Kerala style. As the pace of
life quickened with more ladies going for work, the traditional culinary
art had to give way to easier methods. The highly convenient mixed
spice powders took root in Kerala in the last few years. The avant-garde
RTC / RTE technology makes cooking further simple and is sure to catch
on in the market just as the curry powders did a few years ago. As RTE
and RTC products, a wide variety of traditional Kerala food items will
be available shortly on sale throughout Kerala. It is hoped that this
silver jubilee gift from Saras will be well received by Keralites.
Mr.
M.C. Jacob started the first company of his business group in 1968 as a
small company of only eight employees. Now it has grown into the single
largest private sector employer in Kerala with nearly 5000 employees.
Anna Aluminium, Chakson Pressure Cooker, Chakson Thermal Cooker, Kitex,
ScoobeeDay bags and Kitex Garments are all successful Anna Group
companies.
SARAS SPICES
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Spices have been intimately bound up with the very
fabric of Indian life and culture. This has been so since human
civilisation began. Indian spices have been witness to, and often
participants in history being made and unmade. They have inspired
perilous adventures, fuelled human greed, triggered momentous wars,
forged lasting friendships and caused the discovery of unknown lands.
To this day, Indian spices hold sway over millions around the world.
SARA SPICES
is the condiment producing unit of the Anna Group. It is involved in
the production and exporting of Curry powders, Whole Spices, etc. for
the past two decades. Since its inception in the year 1976, Sara
Spices have come a long way, tingling the palates of gourmets the world
over with its delicious range of Spices and Masala powders.
Sara
Spices and curry powders are known for its high standards of quality
and hygiene and has won accolades at home as well as abroad.It was
awarded the AGMARK, the hallmark of quality in India. Sara curry
powders include Jeera, Cardamom, Ginger, Turmeric, Red Chilly and
Coriander. A wide range of masala powder are also available under this
brand; which include Meat masala, Sambar powder, Rasam powder, Fish
masala, Idli Chutney, Garam masala, Pickle mix, Chicken masala,
Vegetable masala, Chana masala, Pav Bhaji masala, Biriyani masala and
Vindaloo masala.
STERILIZED READY-TO-COOK GRAVY FOR EASY COOKING
Saras is bringing out Ready to cook (RTC) gravies as the modern sequel to curry powders in terms of ease of cooking.
If
RTC gravy is available, cooking is delightfully simple. Just prepare
the chopped pieces of vegetables, meat, fish or chicken, mix with the
matching gravy and cook on fire in open container or pressure cooker
until the pieces are fully cooked. That's it, the dish is ready.
STERILIZED READY TO EAT (RTE) FOOD
Saras ready to eat products offer the convenience of anytime food. The variety of products on offer are traditional Kerala meat, fish, vegetable and fish curries, payasam, biriayani, etc.
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FOOD AND DRUG ADMINISTRATION (FDA) of USA
FDA
regulates dietary supplements under a different set of regulations than
those covering "conventional" foods and drug products (prescription and
Over-the-Counter). Under the Dietary Supplement Health and Education
Act of 1994 (DSHEA), the dietary supplement manufacturer is responsible
for ensuring that a dietary supplement is safe before it is marketed.
FDA is responsible for taking action against any unsafe dietary
supplement product after it reaches the market. Generally, manufacturers
do not need to register their products with FDA nor get FDA approval
before producing or selling dietary supplements. Manufacturers must make
sure that product label information is truthful and not misleading.
FDA's
post-marketing responsibilities include monitoring safety, e.g.
voluntary dietary supplement adverse event reporting, and product
information, such as labeling, claims, package inserts, and accompanying
literature. The Federal Trade Commission regulates dietary supplement
advertising.
Domestic
and foreign facilities that manufacture/process, pack, or hold food for
human or animal consumption in the United States are required to
register their facility with the FDA. For more information
Food Safety Widgets & Apps
The
new Food Safety Alerts & Tips Widget is the first widget that
compiles all food recall information from FDA and USDA in the same
place.
Food Safety Programs
•Reportable Food Registry
•Action Plans
Product-Specific Information
•Acidified and Low-Acid Canned Foods
•Bottled Water & Carbonated Soft Drinks
•Cheese Safety
•Egg Safety
•Fruits, Vegetables & Juices
•Infant Formula
•Medical Foods
•Milk Safety
•Seafood
Food Allergens
•Consumer Information
•Food Allergens Labeling
Foodborne Illness
•Consumer Information
•Foodborne Illness, Foodborne Pathogens & Natural Toxins
•Interagency Coordination
Food Contaminants & Adulteration
•Chemical Contaminants
•Metals
•Natural Toxins
•Pesticides
Hazard Analysis & Critical Control Point (HACCP)
•HACCP Principles & Application Guidelines
•Dairy Grade A Voluntary HACCP
•Juice HACCP•Retail & Food Service HACCP
•Seafood HACCP
Hazard Analysis and Critical Control Point (HACCP)
Adopted August 14, 1997
NATIONAL ADVISORY COMMITTEE ON
MICROBIOLOGICAL CRITERIA FOR FOODS
MICROBIOLOGICAL CRITERIA FOR FOODS
The
National Advisory Committee on Microbiological Criteria for Foods
(NACMCF) is an advisory committee chartered under the U.S. Department of
Agriculture (USDA) and comprised of participants from the USDA (Food
Safety and Inspection Service), Department of Health and Human Services
(U.S. Food and Drug Administration and the Centers for Disease Control
and Prevention) the Department of Commerce (National Marine Fisheries
Service), the Department of Defense (Office of the Army Surgeon
General), academia, industry and state employees. NACMCF provides
guidance and recommendations to the Secretary of Agriculture and the
Secretary of Health and Human Services regarding the microbiological
safety of foods.
DEFINITIONS
CCP Decision Tree:
A sequence of questions to assist in determining whether a control point is a CCP.
Control:
(a) To manage the conditions of an operation to maintain compliance with established criteria.
(b) The state where correct procedures are being followed and criteria are being met.
Control Measure:
Any action or activity that can be used to prevent, eliminate or reduce a significant hazard.
Control Point:
Any step at which biological, chemical, or physical factors can be controlled.
Corrective Action:
Procedures followed when a deviation occurs.
Criterion:
A requirement on which a judgement or decision can be based.
Critical Control Point:
A
step at which control can be applied and is essential to prevent or
eliminate a food safety hazard or reduce it to an acceptable level.
Critical Limit:
A
maximum and/or minimum value to which a biological, chemical or
physical parameter must be controlled at a CCP to prevent, eliminate or
reduce to an acceptable level the occurrence of a food safety hazard.
Deviation:
Failure to meet a critical limit.
HACCP:
A systematic approach to the identification, evaluation, and control of food safety hazards.
HACCP Plan:
The written document which is based upon the principles of HACCP and which delineates the procedures to be followed.
HACCP System:
The result of the implementation of the HACCP Plan.
HACCP Team:
The group of people who are responsible for developing, implementing and maintaining the HACCP system.
Hazard:
A biological, chemical, or physical agent that is reasonably likely to cause illness or injury in the absence of its control.
Hazard Analysis:
The
process of collecting and evaluating information on hazards associated
with the food under consideration to decide which are significant and
must be addressed in the HACCP plan.
Monitor:
To
conduct a planned sequence of observations or measurements to assess
whether a CCP is under control and to produce an accurate record for
future use in verification.
Prerequisite Programs:
Procedures,
including Good Manufacturing Practices, that address operational
conditions providing the foundation for the HACCP system.
Severity:
The seriousness of the effect(s) of a hazard.
Step:
A point, procedure, operation or stage in the food system from primary production to final consumption.
Validation:
That
element of verification focused on collecting and evaluating scientific
and technical information to determine if the HACCP plan, when properly
implemented, will effectively control the hazards.
Verification:
Those
activities, other than monitoring, that determine the validity of the
HACCP plan and that the system is operating according to the plan.
HACCP PRINCIPLES
HACCP
is a systematic approach to the identification, evaluation, and control
of food safety hazards based on the following seven principles:
Principle 1: Conduct a hazard analysis.
Principle 2: Determine the critical control points (CCPs).
Principle 3: Establish critical limits.
Principle 4: Establish monitoring procedures.
Principle 5: Establish corrective actions.
Principle 6: Establish verification procedures.
Principle 7: Establish record-keeping and documentation procedures
Example of a Company Established HACCP Verification Schedule
Activity
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Frequency
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Responsibility
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Reviewer
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Verification Activities Scheduling
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Yearly or Upon HACCP System Change
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HACCP Coordinator
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Plant Manager
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Initial Validation of HACCP Plan
|
Prior to and During Initial Implementation of Plan
|
Independent Expert(s)(a)
|
HACCP Team
|
Subsequent validation of HACCP Plan
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When Critical Limits Changed, Significant Changes in Process, Equipment Changed, After System Failure, etc.
|
Independent Expert(s)(a)
|
HACCP Team
|
Verification of CCP Monitoring as Described in the Plan (e.g., monitoring of patty cooking temperature)
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According to HACCP Plan (e.g., once per shift)
|
According to HACCP Plan (e.g., Line Supervisor)
|
According to HACCP Plan (e.g., Quality Control)
|
Review of Monitoring, Corrective Action Records to Show Compliance with the Plan
|
Monthly
|
Quality Assurance
|
HACCP Team
|
Comprehensive HACCP System Verification
|
Yearly
|
Independent Expert(s)(a)
|
Plant Manager
|
The
production of safe food products requires that the HACCP system be
built upon a solid foundation of prerequisite programs. Each segment of
the food industry must provide the conditions necessary to protect food
while it is under their control. This has traditionally been
accomplished through the application of cGMPs. These conditions and
practices are now considered to be prerequisite to the development and
implementation of effective HACCP plans. Prerequisite programs provide
the basic environmental and operating conditions that are necessary for
the production of safe, wholesome food. Common prerequisite programs may
include, but are not limited to:
Facilities.
The
establishment should be located, constructed and maintained according
to sanitary design principles. There should be linear product flow and
traffic control to minimize cross-contamination from raw to cooked
materials.
Supplier Control.
Each
facility should assure that its suppliers have in place effective GMP
and food safety programs. These may be the subject of continuing
supplier guarantee and supplier HACCP system verification.
Specifications.
There should be written specifications for all ingredients, products, and packaging materials.
Production Equipment.
All
equipment should be constructed and installed according to sanitary
design principles. Preventive maintenance and calibration schedules
should be established and documented.
Cleaning and Sanitation.
All
procedures for cleaning and sanitation of the equipment and the
facility should be written and followed. A master sanitation schedule
should be in place.
Personal Hygiene.
All employees and other persons who enter the manufacturing plant should follow the requirements for personal hygiene.
Training.
All
employees should receive documented training in personal hygiene, GMP,
cleaning and sanitation procedures, personal safety, and their role in
the HACCP program.
Chemical Control.
Documented
procedures must be in place to assure the segregation and proper use of
non-food chemicals in the plant. These include cleaning chemicals,
fumigants, and pesticides or baits used in or around the plant.
Receiving, Storage and Shipping.
All
raw materials and products should be stored under sanitary conditions
and the proper environmental conditions such as temperature and humidity
to assure their safety and wholesomeness.
Traceability and Recall.
All
raw materials and products should be lot-coded and a recall system in
place so that rapid and complete traces and recalls can be done when a
product retrieval is necessary.
Pest Control.
Effective pest control programs should be in place.
Retail & Food Service HACCP
Managing
retail food safety embodies the principles of HACCP at retail and
active managerial control on the part of industry. Regulators also play a
role in maintaining a food safety system in retail food establishments.
Cooperatively, regulators and industry can work together to understand
the perspective of each and account for the variety of food preparation
and service needs found in retail food establishments - from the
facility with minimal food service to very complex operations that serve
hundreds to thousands of meals daily.
Specific
information is provided to assist the regulator and industry in meeting
the needs for providing safe food to the consumer.
AGMARK of INDIA
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SPICES BOARD OF INDIA
The
Quality Evaluation Laboratory of Spices Board was established in 1989.
It provides analytical services to the Indian spice industry, monitors
the quality of spices produced and processed in the country and analyse
all the samples collected by the Board under the Compulsory inspection
on Chillies, Chillies products and Turmeric powder exported from India.
The Laboratory also established its first regional Quality Evaluation
Laboratory at Mumbai during June 2008. The second regional Quality
Evaluation Laboratory is being established at Guntur, Andhrapradesh.
The
laboratory is certified by British Standards Institution, U.K. for the
ISO 9001:2000 Quality Management System in 1997, ISO 14001:2004
Environmental Management System in 1999 and Accreditation under the
National Accreditation Board for Testing & Calibration Laboratories
(NABL) (under the ISO/IEC: 17025) in 2004. The Laboratory activities are
fully computerized and linked with network since 1999. The Laboratory
is also in the process of providing the web enabled result delivery in
the immediate future. The Laboratory is divided into three divisions
Viz. Chemistry Lab, Residue Lab and Microbiology Lab for the speedy and
efficient handling of the analysis done on various parameters.
» Quality policy Statement on ISO:14001:2004
» Quality policy Statement on ISO:9001:2000
» Quality policy Statement on ISO IEC 17025:2005
Bureau of Indian Standards (BIS)
BIS
has prescribed quality standards for 16 spices, spice powders,
concentrates and oleoresins. Spices Board actively interacts with BIS in
finalizing standards for other spices and to upgrade the existing ones.
PFA
PFA
Act and Rules are sought to be amended by overhauling both the
conceptual framework as well as procedural formalities considered to be
major hurdles in the proper implementation of the Act. Spices Board has
interface with all the other agencies involved in amending the PFA Act
and Rules.
Survey on Quality of spices
Te
laboratory undertakes survey to assess the quality of spices produced
at various levels as and when required. Samples collected from the major
spice growing centers are analyzed for physical, chemical and microbial
contaminants including pesticide residues and aflatoxin.
SPICE HOUSE CERTIFICATE
Application for grant of Spice House Certificate
The
latest in the Board's campaign for quality upgradation is the
introduction of the Spice House Certificate. The certificate is issued
to those processors/exporters who have a genuine commitment to quality,
and whose long-term objective is sustained export growth. The Spice
House Certificate seeks to identify and recognise processors who have
made investments in in-house processing facilities and infrastructure,
and have the necessary competence to ensure consistent quality and
reliability. These facilities cover all critical areas - cleaning,
grading, processing, packaging and warehousing. A foolproof system of
quality assurance should be employed at all stages of processing - from
raw material selection to final shipping. The processors are also
expected to maintain a high degree of sanitation in the plant, while the
workers must observe absolute cleanliness and personnel hygiene.
Both
the logo and the Spice House Certificate holders have quality
upgradation as their ultimate objective, but with a basic difference in
focus.
Exporters
of branded spices and spice products in consumer packs are the focal
point of the logo programme. On the other hand, the certification
programme aims at exporters of spices and spice products in bulk
packing. The products covered by the certification programme include
whole spices as well as value-added products like spice mixes, ground
spices, curry blends, spice oils oleoresins and sterilized, dehydrated,
pickled and candied spices.
Spice House Certificate logo
Product of saras spices
Powder
· Chilly powder
· Coriander powder
· Turmeric powder
· Pepper powder
· Sambar powder
· Pickle powder
· Rasam powder
· Meat masala
· Fish masala
· Garam masala
· Chicken masala
· Vegetable masala
· Biriyani masala etc…
Ready to cook (RTC)
· Meat curry arappu
· Fish curry arappu
· Chicken curry arappu
· Tandoori chicken curry arappu
· Butter chicken curry arappu
· Chicken biriyani arappu
· Lamb bhuna gravy
· Ginger garlic paste
· varathara etc…
Ready to eat (RTE)
· Vegetable biriyani
· Milk ada payasam
· Uluva kanji
· Wheat milk payasam
· Neipayasam
· Whole milk payasam etc…
Processing of some spices is given below:
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Processing of some spices is given below:
Black Pepper
Limit of contaminants stipulated by importing countries
Pepper
exported to USA shou Id conform to the cleanliness specification
stipulated by the American Spice Trade Association (ASTA) and also the
regulations enforced by the Food and Drug Administration (FDA),ASTA
cleanliness specifications set limits for criteria such as number of
dead insects in the sample analysed, amount of mammalian excreta, other
excreta, percentage of weight of berries with mold and / or insect
infestation and the extent of foreign matter present. Pepper imported
into USA failing to meet these cleanliness specifications will be
detained and subjected to reconditioning (cleaning to remove the defect)
If defects can not be removed by reconditioning the ot may be destroyed
or sent back to the country of its origin. In addition to ASTA
cleanliness specifications pepper imported to USA has to comply with the
Defect Action Level of FDA as and when prescribed.
FDA Defect Action Levels for Pepper comprise of:
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CARDAMOM
ASTA CLEANLINESS SPECIFICATIONS
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Besides
this, FDA also administers, Surveillance programmes to monitor for
pesticide residues in Spices, the US Environmental Protection Agency
(EPA) prescribes tolerance levels for pesticide residues and the FDA
enforces them through compliance programmes. EEC countries constitute a
major market for Indian Spices. Most EEC countries import spices in
accordance with prevailing food laws. The Netherlands have
specifications for various quality parameters of spices. Germany has
prescribed tolerance levels for pesticides residues. The German
specifications are supposed to be the most stringent. The Dutch law also
prescribes maximum residues for pesticides in spices. The food industry
and spice processers in U.K. follow the limit for pesticides prescribed
in the German specifications.
Most
EEC countries have prescribed tolerance levels for Aflatoxin. German
specification for Aflatoxin B I and B I + B2 + G I + G2 are 2ppb and 4
ppb respectively. Other European countries specify and for the presence
of Aflatoxin B I which vary from I ppb to IOppb.
In
all EEC countries, specifications for Salmonella in spices is absence
in 25 gms. The food processing industry and spice grinders specify
microbial load for each spice blend depending upon the end use.
CHILLIES
ASTA CLEANLINESS SPECIFICATIONS
(Effective April 28, 1999) | |||||||||||||||||||||
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In
addition to ASTA cleanliness specifications spices imported to USA
should comply with the Defect Action Levels (DAL) of FDA. At present
FDA Defect Action Levels for Chillies comprise:
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Besides
this, FDA also administers Surveillance programmes to monitor for
pesticide residues in spices, . the US Environmental Protection Agency
(EPA) enforces them through compliance programmes. EEC Countries
constitute a major market for Indian Spices. Most EEC Countries import
spices in accordance with prevailing food laws. The Netherlands have
specifications for various quality parameters of spices. Germany has
prescribed tolerance levels for pesticide residues. The German
specifications are supposed to be the most stringent. The Dutch law also
prescribes maximum residues for pesticides in spices. The food industry
and spice processers in U.K. follow the limit for pesticides prescribed
in the German specifications in the absence of U.K. Specifications.
Most EEC countries have prescribed tolerance levels
for
Aflatoxin. German specification for Aflatoxin B 1 + B2 + G 1 + G2 are 2
ppb and 4 ppb respectively. Other European countries have prescribed
the limits for Aflatoxin B 1 which vary from 1 ppb to 10 ppb.
In
all EEC countries specifications for Salmonella in spices is absence in
25 gms. The food processing industry and spice grinders specify
microbial load for each spice blend depending upon the end use.
Turmeric
Packing
Only new and clean bags should be used for packing dried
turmeric. It is preferable to use polythene laminated gunny bgas
Storage precautions
Turmeric
should be stored ensuring protection from dampness. Dunnage should be
provided to stack the packed bags to prevent moisture ingress from the
floor. Care should be taken to stack the bags 50 to 60 cms. away from
the walls.
No
insecticide, should, under any circumstances, be used directly on dried
turmeric. Stored turmeric should be subjected to periodic fumigation
for which only authorised persons should be engaged.
Insects,rodents
and other animals should be effectively prevented from gctting access
to the premises where tUrmeric is stored. Stored turmeric should be
periodically exposed to the Sun.
Insects,
rodents and othcr animals should bc effcctively prevented from getting
access to the premises where turmeric is stored. Stored turmeric should
be periodically exposed to the sun.
If
care is taken in all stages of cultivation, harvesting, post harvest
handling, processing, packing, storage and transportation by following
sound methods and practices we will be able to prevent contamination and
deterioration of quality in any farm produce including turmeric and
ensure consumer satisfaction.
Conformity
to the quality requirements of the buying countries and price
competitiveness are the key factors which determine our survival in the
international market today. Improved productivity and quality will
enhance the farmers income and increase the country's foreign exchange
earnings much needed for our developmental activities.
The
maxim 'produce,process and prosper' holds true in the case of exports
of spices from India and turmeric is an excellent example. The message
is eloquent - we have to produce more turmeric through higher production
and improved productivity to meet the demands of the domestic and the
export markets and should process it adopting good processing practices
creating value addition and of course have to export the product meeting
the requirements of the importing countries which in turn would lead to
significant groWth in exports.
Processing flow chart
Lab testing
Mixing and cooking (drying)
Milling
Weighting
Exhausting
Sealing
Retorting
Unloading
Packing and labeling
Storage
Testing
Distribution
Spices testing and inspection
Te
laboratory undertakes survey to assess the quality of spices produced
at various levels as and when required. Samples collected from the major
spice growing centers are analyzed for physical, chemical and microbial
contaminants including pesticide residues and aflatoxin.
.
Services
covered in the Spices Board registration include laboratory testing
services for physical, chemical and microbiological parameters of spices
and spice products.
Spices Laboratory Testing:







*ASTA is the American Spice Trade Association.
Spices Tested and Inspected include:








Colour value of chillis & chilli oleoresin
A. Apparatus : Spectrophotometer, Absorption cell, Standard glass filter, Pipette
spectrophotometer
Introduction
In chemistry, spectrophotometry is the quantifiable study of electromagnetic spectra. It is more specific than the general term electromagnetic spectroscopy in that spectrophotometry deals with visible light, near-ultraviolet, and near-infrared. Also, the term does not cover time-resolved spectroscopic techniques.
Spectrophotometry involves the use of a spectrophotometer. A spectrophotometer is a photometer
(a device for measuring light intensity) that can measure intensity as a
function of the light source wavelength. Important features of
spectrophotometers are spectral bandwidth and linear range of absorption
measurement.
The use of spectrophotometers spans various scientific fields, such as physics, chemistry, biochemistry, and molecular biology They are widely used in many industries including printing and forensic examination.
How it Works
There
are two major classes of devices: single beam and double beam. A double
beam spectrophotometer compares the light intensity between two light
paths, one path containing a reference sample and the other the test
sample. A single beam spectrophotometer measures the relative light
intensity of the beam before and after a test sample is inserted.
Although comparison measurements from double beam instruments are easier
and more stable, single beam instruments can have a larger dynamic
range and are optically simpler and more compact.
The
spectrophotometer quantitatively compares the fraction of light that
passes through a reference solution and a test solution. Light from the
source lamp is passed through a monochromator, which diffracts the light
into a "rainbow" of wavelengths and outputs narrow bandwidths of this
diffracted spectrum. Discrete frequencies are transmitted through the
test sample. Then the intensity[disambiguation needed] of the
transmitted light is measured with a photodiode or other light sensor,
and the transmittance value for this wavelength is then compared with
the transmission through a reference sample.
The most common spectrophotometers are used in the UV and visible regions of the spectrum, and some of these instruments also operate into the near-infrared region as well.
Visible region 400–700 nm spectrophotometry is used extensively in colorimetry science.
Use
this instrument to measure the amount of compounds in a sample. If the
compound is more concentrated more light will be absorbed by the sample;
within small ranges, the Beer-Lambert law holds and the absorbance between samples vary with concentration linearly.
Samples are usually prepared in cuvettes; depending on the region of interest, they may be constructed of glass, plastic, or quartz.
- The light source shines onto or through the sample.
- The sample transmits or reflects light.
- The detector detects how much light was reflected from or transmitted through the sample.
- The detector then converts how much light the sample transmitted or reflected into a number.
Beer–Lambert law, also known as relates the absorption of light to the properties of the material through which the light is traveling.
B. Reagent: Acetone
C. Procedure
1. Ungrounded capsicum must be ground to pass through U.S No.20 sieve.
2. Weight 70 – 100 mg of sample and transfer to a 100 ml vol. flask.
3. Fill to mark with acetone and stopper tightly .
4. Shake flask rest 16 hr. at room temp. in dark.
5. Shake flask and allow 2 min. for the particles to settle.
6. Transfer a portion of the extract to the spectrophotometer cell and measure the absorbance at 460 nm with acetone blank
7. Determine absorbance of glass filter at 465 nm
D. Calculation
1. Instrument correction factor (IF)
NBS A at 465 nm
Lab A at 465 nm
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IF =
0.5229 / Lab A at 465 nm std. glass filter
|
=
A of acetone ext. × 16.4 IF
Sample weight in gm.
|
2. Extractable ASTA color =
Procedure for oleoresins
1. Mix sample well by shaking
2. Weight 70 – 100 mg of sample and transfer it to a 100 ml vol. flask
3. Fill to mark with acetone and stopper tightly and shake well
4. Rest for 2 min.
5. Transfer a portion of the extract to the spectrophotometer cell and measure the absorbance at 460 nm with acetone blank
6. Determine absorbance of glass filter at 465 nm
Calculation for oleoresins
1. Instrument correction factor (IF)
NBS A for glass filter at 465 nm
A of glass filter at 465 nm
|
IF =
0.5229 / A of glass filter at 465 nm std.
|
=
A of acetone ext. × 16.4 IF
Sample weight in gm.
|
2. Extractable ASTA color =
E. Result and reporting
Report the result to the accuracy of 0.0 ASTA unit
Ash analysis
An
Ash test is used to determine if a material is filled. The test will
identify the total in organic content. It cannot identify individual
percentages in multi-filled materials without additional test procedures
being performed. An ash test cannot be used to determine the percent
carbon fiber or percent carbon black since carbon burns off during the
Ash test.
Specimen size:
Six
grams of sample is typically used, which represents three crucibles
each containing two grams of sample. Smaller sample weights can be
tested but accuracy diminishes with smaller sample sizes.
Procedure:
An
Ash test involves taking a known amount of sample, placing the weighed
sample into a dried / pre-weighed porcelain crucible, burning away the
sample in an air atmosphere at temperatures above 550°C, and weighing
the crucible after it is has been cooled to room temperature in a
desiccator.
Data:
The
Ash test result is expressed as % ash. The total ash content equals the
weight of the ash divided by the weight of the original sample
multiplied by 100%.
Muffle furnace
|
Crucible
|
Moisture Analysis
Moisture
affects the processibility, shelf life, usability and quality of many
products such as pharmaceutical substances, and foods. Information about
and monitoring of moisture content is therefore very important. Most
substances have an optimum moisture content for obtaining the best
possible processing results and therefore attaining maximum quality.
Moisture
is determined by Dean and Stark method the apparatus consists mainly of
3 parts. A distillation flask is 500 ml. toluene of boiling point 1100C is used on the media for distillation of water.
Procedure :
40
g of sample is transfer to the distillation flask. 100 ml of toluene is
added and well mixed. The Dean and Stark apparatus is assembled and
filled with toluene. The flask is heated at 1000C for
1 hr. Till the entire moisture content in the sample is distilled and
collected in side trap. A spiral copper wire is moved up and down in the
condenser and receiver to separated the water from toluene. On cooling
the receiver at room temp. the volume of water collected in the
graduated side trap and read it.
Vol. of sample (reading) ×100
Wt. of sample
|
Moisture content =
Dean and Stark apparatus
|
Volatile oil content (VOC)
Procedure :
About
50 g of sample is taken an RB flask (1000 ml), 500 ml water is added
and well mixed. 7-8 drops of silicon antifoaming agent is adding.
Connected to the Clevenger trap apparatus and reflex condenser. Heat at
1000C for 4-5 hr. we get on oil level of the sample in the trap.
Reading obtained ×100×100
Wt. of sample(100-moister)
|
% of volatile oil content (VOC) =
Clevenger trap
|
Non volatile ether extract (NVEE)
About
2-3g of the sample is weighted in a filter paper. The filter paper with
sample is folder and tied with a twine and put in a thimble and is
extracted with petroleum ether (B.P.60-800C) at 700C
for 18-hrs.in a soxhlet extraction apparatus. The extraction is
continued till the color of the either become clear. After removing the
ether completely the flask is dried by keeping in an air oven at 1050C. Cooled in a dessicater and weighed. Repeat the procedure until the difference between two successive weighing less than 1 mg.
Wt. of NVEE×100×100
Wt. of sample (100-moisture)
|
% of Non volatile ether extract =
soxhlet extraction apparatus
|
Microscopic method for the detection of starch other than turmeric starch
A
small quantity of sample is taken in a small beaker and is washed with
di ethyl ether and diconted for about 4-5 times for removing the color
and allowed to dry. The slide is prepared by spreading very little
powder on the slide. Wetting with 1-2 drops of glycerol 30 % and
covering with slip. The prepared slide is examined under a microscope
peculation shaped yellow crystal of turmeric starch is seen. Any other
small white round crystals are all so seen it is clear that foreign
starch is present. If no other crystals present the sample is pure
Determination of salt
About 1-2
gm of sample is weighed in crucible and ashed in muffle furnace .the
ash is completely washed and filtered throw ordinary filter paper with
about 100 ml boiling
water. Until the filtrate become chloride free and tested by AgNo3
solution. The washing are collected in a conical flask and titrated
against standard AgNo3 solution by adding 5 ml of 5 % of potassium
chromate solution as an indicator. End point is the color change from
yellow to biscuit red color. Titrations are repeated till concordant
value are obtaine.
Calculation:
5.85×titar value×0.1× 100
Wt. of sample (100-moisture)
|
% salt =
Commercial sterility
Packaged in a sterile container in a way which maintains sterility
Sterility
is achieved with a flash-heating process (temperature between 195° and
295°F (91° to 146°C)), which retains more nutrients and uses less energy
than conventional sterilization techniques such as retort or
hot-fill canning. Aseptic food preservation methods allow processed food
to keep for long periods of time without preservatives, as long as they
are not opened. The aseptic packages are typically a mix of paper (70%), polyethylene (LDPE) (24%), and aluminum (6%),
with a tight polyethylene inside layer.[1] Together the materials form a
tight seal against microbiological organisms, contaminants, and
degradation, eliminating the need for refrigeration.
Aseptic
processing makes worldwide export and import of new, economical and
safe food products possible. Bag-In-Box technology is commonly used
because it provides strong containers that are light weight and easy to
handle prior to being filled. Other common package types are drink boxes
and pouches.
Commercial sterility test
The
thermally processed samples to different F0 were incubated at 37°C for
15 days and 55°C for 5 days. The incubated cans were aseptically opened
and 1-2gm of the sample were taken by a sterilized forceps and
inoculated into the sterilized fluid thioglycolate broth in test tube.
Little sterilized liquid paraffin was put on to the top of the broth to
create anaerobic condition and incubate at 37°C for 48 hrs and at 55°C for 4 days.
Example for some lab tests
Sambar powder
Lot no :
Date of sampling :
Date of completion of analysis :
Date of packing :
1. volatile oil content (VOC)
Wt. of sample = 50 g
Reading obtained = 0.3 ml
% of volatile oil content = 0.3×100 = 0.6%
50
2. salt
Wt. of sample = 1.087 g
Titer wt of sample = 8.3 ml
% salt = 5.85×8.3×0.1×100 = 4.65%
1.087×96
3. moisture
Wt. of sample = 40 g
Reading obtained = 1.6 ml
% of moisture = 1.6×100 = 4%
40
4. crude fiber
Wt. of sample = 2.5134 g
Wt. CF before ignition = 33.1454 g
Wt. CF after ignition = 32.8435 g
Wt. of CF = 0.302 g
% of CF = 0.302×100×100 = 12.52%
2.5134×96
5. Non volatile ether extract ( NVEE)
Wt. of sample = 2.5134 g
Wt. of empty flask = 104.6500 g
Wt. NVEE+flask =104.9600 g
Wt. of NVEE =0.31 g
%NVEE = 0.31×100×100 = 12.96 %
2.5134×96
Chicken masala
Lot no :
Date of sampling :
Date of completion of analysis :
Date of packing :
1. volatile oil content (VOC)
Wt. of sample = 50 g
Reading obtained = 0.3 ml
% of volatile oil content = 0.3×100 = 0.6%
50
2. salt
Wt. of sample = 2 g
Titer wt of sample = 2.1 ml
% salt = 5.85×2.1×0.1×100 = 0.64%
2×95.5
3. moisture
Wt. of sample = 40 g
Reading obtained = 1.8 ml
% of moisture = 1.8×100 = 4.5%
40
4. crude fiber
Wt. of sample = 2.3216 g
Wt. CF before ignition = 29.3560 g
Wt. CF after ignition = 29.0480 g
Wt. of CF = 0.308 g
% of CF = 0.308×100×100 = 13.89%
2.3216×95.5
5. Non volatile ether extract ( NVEE)
Wt. of sample = 2.3216 g
Wt. of empty flask = 101.1195 g
Wt. NVEE+flask =101.4485g
Wt. of NVEE =0.329 g
%NVEE = 0.329×100×100 = 14.84 %
2.3216×95.5