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MANUAL OF METHODS OF ANALYSIS OF FOODS SPICES AND CONDIMENTS FOOD SAFETY AND STANDARDS AUTHORITY OF INDIA MINISTRY OF HEALTH AND FAMILY WELFARE GOVERNMENT OF INDIA NEW DELHI 2016 SPICES AND CONDIMENTS 2016 MANUAL FOR ANALYSIS OF SPICES AND CONDIMENTS TABLE OF CONTENTS S.NO. TITLE/METHOD PAGE NO. 2 1.0 Preparation of Sample 2.0 Determination of Extraneous Matter and other 2 Refractions 3.0 Determination of Moisture 2 4.0 Determination of Total Ash 12 5.0 Determination of Ash Insoluble in dilute HCl 14 6.0 Determination of Cold Water Extract 15 7.0 Determination of Alcohol Soluble Extract 15 8.0 Determination of Calcium Oxide 17 9.0 Determination of Non Volatile Ether Extract 18 10.0 Determination of Volatile Oil 19 11.0 Determination of Crude Fibre 22 12.0 Determination of Allyl isothiocyanate in Mustard 24 13.0 Determination of p-hydroxybenzyl isothiocyanate in S. 25 alba (White Mustard) 14.0 Black Pepper 26 15.0 Saffron 30 16.0 Turmeric Whole 34 17.0 Asafoetida 37 18.0 Microscopic Examination of Spices 39 19.0 Detection of Argemone seeds in Mustard 40 20.0 Detection of Mineral Oil in Black Pepper 40 21.0 Detection of Papaya seeds in Black Pepper 41 22.0 Detection of Turmeric in Chillies and Corriander 42 23.0 Detection of Oil Soluble Colour 42 24.0 Determination of Light and Heavy Filth in Spices and 42 Condiments 25.0 Method for capsaicin content in chilli powder 42 26.0 Method for measuring colour value in chillies 48 References 50 Note: The test methods given in the manuals are validated/ standardized test methods. However, it would be the responsibility of the respective testing laboratory to confirm that the above methods are validated in its laboratory and gives proper result in their laboratory. 1 SPICES AND CONDIMENTS 2016 MANUAL FOR ANALYSIS OF SPICES AND CONDIMENTS Spices and condiments are added to foods in small amounts but they make important contribution to the sensory qualities due to presence of volatile and fixed oils. Standards for Spices and Condiments are laid down under Food Safety and Standards (Food Products Standards and Food Additives) Regulations, 2011. 1.0 Preparation of sample Grind laboratory sample as quickly as possible in a grinding mill to pass sieve with 1 mm diameter aperture. Avoid undue heating of apparatus during grinding. Mix carefully to avoid stratification (layering). Store in a dry stoppered container. (Ref: - IS Specification No IS 1797 – 1985 Methods of Test for Spices and Condiments/ AOAC 17th edn 2000, Official Method 920.164 Preparation of Test sample) 2.0 Determination of Extraneous Matter and other Refractions in Whole spices Thoroughly mix the sample and weigh 100 – 200 gm depending on the nature of the material (10 – 20 gm in case of small sized spices), note down the exact weight and spread in an enameled tray. Separate extraneous matter and other refractions by hand. Weigh each fraction and calculate percentage. (Ref: - IS Specification No IS 1797 – 1985 Methods of Test for Spices and Condiments) 3.0 Determination of Moisture (Dean and Stark Toluene Distillation Method) 3.1 Principle The amount of water is determined by distilling the material with an organic liquid not miscible with water and collecting the distillate in a graduated tube. 2 SPICES AND CONDIMENTS 2016 3.2 Reagents Toluene - Saturate with small quantity of water and distill. Use the distillate for determination of moisture. 3.3 Apparatus Moisture Distillation Apparatus - consists of a 500 mL short neck round bottomed flask heated using a heating mantle and provided with a reflux condenser discharging into a trap connected to the flask. The trap serves to collect and measure the condensed water and to return the condensed solvent to the flask (See figures below) and a copper wire long enough to extend throughout the condenser with one end twisted into a spiral. The diameter of the spiral should be such that it fits snugly within the graduated portion of the receiver and yet it can be moved up and down. 3
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