This document discusses quality assurance in milk and milk products. It outlines the components of milk including water, protein, vitamins, lactose, minerals and fat. It then discusses common adulterants added to milk like water, cane sugar and glucose. The quality assurance process involves reception tests like organoleptic tests, Clot on Boiling (COB) and alcohol tests, as well as lab tests including Gerber Butterfat tests to check fat levels, acidity tests to check sweetness, and lactometer tests to check density. Pasteurization is also discussed as a process to purify milk and extend its freshness.
a brief of raw milk reception dock
here you will find images depicting chilling centre, transportation mode,how cleaning and sanitation of tanks are done type of tanks , how milk is weighed
You will find some important key points read every point carefully
every point and data is taken from some book or reseaech paper
Milk is a unique in that it is both consumed, as fluid milk with minimal processing and it is the raw material used to manufacture a wide variety of product.
a brief of raw milk reception dock
here you will find images depicting chilling centre, transportation mode,how cleaning and sanitation of tanks are done type of tanks , how milk is weighed
You will find some important key points read every point carefully
every point and data is taken from some book or reseaech paper
Milk is a unique in that it is both consumed, as fluid milk with minimal processing and it is the raw material used to manufacture a wide variety of product.
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Raw milk has to pass through rigorous examination which may include organoleptic,physical and chemical tests to assess the quality of intake milk rapidly, and decide for its acceptance or rejection. All these tests known as “platform tests” are performed on each can/tanker to assess the quality of the incoming milk before it is accepted and weighed. These tests must be easy to perform, give quick and reliable results and should not require complicated and elaborate equipment. The classification of milk on the basis of quality is usually referred to “grading of milk”.So grading of milk is done on the basis of platform tests which include organoleptic
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detailed information about indian dairy products their manufacturing,chemical analysis,shelf life,composition,process flowchart,production and consumption of indian products, state wise production,indian products and their english counterparts
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Fermented milk products, also known as cultured dairy foods, cultured dairy products, or cultured milk products, are dairy foods that have been fermented with lactic acid bacteria.
This particular presentation describes all the fermented milk products like yoghurt, cheese etc. VIEW, SHARE, ENJOY!
Different Platform Tests for Raw Milk at Raw Milk Reception Dock(RMRD)sunil meena
Raw milk has to pass through rigorous examination which may include organoleptic,physical and chemical tests to assess the quality of intake milk rapidly, and decide for its acceptance or rejection. All these tests known as “platform tests” are performed on each can/tanker to assess the quality of the incoming milk before it is accepted and weighed. These tests must be easy to perform, give quick and reliable results and should not require complicated and elaborate equipment. The classification of milk on the basis of quality is usually referred to “grading of milk”.So grading of milk is done on the basis of platform tests which include organoleptic
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detailed information about indian dairy products their manufacturing,chemical analysis,shelf life,composition,process flowchart,production and consumption of indian products, state wise production,indian products and their english counterparts
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Quality assurance in milk and milk products copy
1. QUALITY ASSURANCE IN MILK
AND MILK PRODUCTS
ASHISH KUMAR
ashish.narayan.ashu@gmail.com
2. MILK
Milk is a white liquid produced by the mammary glands of mammals.
Milk is an emulsion or colloid of butterfat globules within a water-based fluid that
contains dissolved carbohydrates.
Because it is produced as a food source for a neonate, all of its contents provide
benefits to the growing young
4. MILK COMPOSITION
CONSTITUENTS COW WATER BUFFALO
WATER 87.7 81.1
LACTOSE 4.6 4.9
FAT 3.6 8.0
PROTEIN 3.4 4.5
MINERAL’S 0.7 1.5
- All the mentioned values are in percentage.
6. QUALITY ASSURANCE FOLLOWS TWO
STEPS
• RECEPTION
a) Milk Sampling
b) Labeling And Records of the Sample
c) Organoleptic Tests
d) Clot on Boiling (COB)
e) Alcohol Test
• LAB TESTS
7. LAB TESTS: GERBER BUTTERFAT TEST
Done for checking the fat level in milk.
• 10.75-11 ml of milk warmed at 27⁰C.
• 1ml of Amyl Alcohol
• Centrifuge machine.
• Minimum reading of fat should be 5.
8. ACIDITY TEST (LA)
• 9ml milk
• 2-3ml of Phenolphthalein indicator.
• Titrate
• 0.1 N Sodium hydroxide (NaOH)
• Divide the reading with 10.
• For ex- Initial reading Final reading
11.4 12.8
Answer - will be 1.4/10 = .14
9. LACTOMETER TEST
Done for checking the sweetness of the milk.
• Taking warm milk(20⁰C) 300-500ml milk.
• Putting the lactometer in milk containing
cylinder.
• Taking the reading just the above the level of
milk and recording it.
10. Sample Milk temp. Lactometer
reading
Correction True reading
No. 1 17⁰ C 30.6⁰ L -0.6⁰L 30.0⁰L
No. 2 20⁰ C 30⁰ L Nil 30.0⁰L
No. 3 23⁰ C 29.4⁰ L -0.6⁰L 30.0⁰L
for the calculations, for the conversion to density (1.0 + True Reading lactometer).
Standard reading of
•density is 1.026-1.032g/ml.
•For lactometer reading range is 26-32⁰L
11. TOTAL SNF COUNT
Can be calculate as:-
SNF=
CLR
4
+ 0.2 X FAT + .29
SNF = SOLID NOT FAT
CLR = CLEAR / CORRECTED LACTOMETER READING=29
FAT = ALREADY CALCULATED
12. PROTEIN ESTIMATION
• 10ml of well mixed sample of milk.
• Add 1ml of Phenolpthalein indicator.
• 0.4ml saturated pottassium oxalate solution
• Put for 2-3 mins
• Titatre with N/10 sodium hydroxide till pink
colour.
• Add 2ml of 40% neutral formaldehyde and
mix.
13. • Titrate against N/10sodium hydroxide till pink
colour.
• Record the consumption of N/10 alkali in 2nd
titration.
• Volume required in 2nd titration= 5ml
• % of protein in the given sample= 5+1.7=6.7
14. PASTEURISATION
• Pasteurization is the process that purifies milk
and helps it stay fresher, longer.
• There two methods:
1. Batch Method.
2. Continuous Method.