इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 1909 (1992): Indian Curry Powder--Specification. UDC 664.5 “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 1909 : 1992 ) ( q~~T ~"~Tel1Jf Indiall Standard INDIAN CURRY PO"VDER-SPECIFICATION ( First Revision) UDC 664·5 CUR @ BIS 1992 BUR E A U OF I N D I AN S TAN DAR D S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 June 1992 Price Group 3 Spices and Condiments Sectional Committee, FAD 9 FOREWORD This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Spices and Condiments Sectional Committee had been approved by the Food and Agri. culture Division Council. Indian curry powder is a blend of numerous spices with varying formulae to suit different tastes. Indian curry powders are generally used in cooking to impart taste and flavour to a variety of culinary preparations. This Indian Standard was first issued in 1961. Since then a broad band of varieties of curry powders are being marketed in the country. Therefore, with a view to enabling monitoring of quality of Indian curry powders as currently traded, it was considered imperative to revise this specification. In this revision additional characteristics for Indian curry powder have been incorporated. While formulating this standard, the Sectional Committee responsible for the formulation of Indian Standards on spices and condiments, took into consideration the prevailing trade practice. This standard is mainly based on the specifications contained in the Curry Powder ( Grading and Marking) Rules, 1956 framed under the Agricultural Produce (Grading and Marking) Act, 1937 and in the Prevention of Food Adulteration Rules, 1955. This standard is however, subject to the restriction imposed under the Prevention of Food Adulteration Rules: wherever applicable. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 'Rules for rounding off numerical values (revised)'. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. AMENDMENT NO. 1 1994 TO IS 1909 : 1992 INDIAN CURRY POWDER -' SPECIFICATION ( First Revision) (Page 1, clause 2 ) : i) Delete 'IS 1070 : 1977 Water for general laboratory use ( second revision )' , ii) Substitute '13145 : 1993 Method of sampling for spices and r condiments (first revision for the existing reference. iii) Add' IS 13545 : 1992 Specification for GA.RAAl j\.1ASAIA', (Page 1, clause" ) - Substitute 'IS 13145 : 1993' for 'IS 13145 : 1991 '. (Page 1, Table 1 ) - Substitute the foHowing for the existing: Table 1 Requirement for Indian Curry Powder ( Clause 3.4 ) Characteristic Requirement Method CleAT Itst, R.:!.,t_o ___ (Annex of CI No. of Annex of '") This Indian IS 1799: 1985 IS 13545: 1992 Stmdard (2) (3) (4) (5) (6) Moisture, percent 10.0 9 by mass, Max Volatile oil, 0.25 15 ml/l00 g, Milt -Non-volatile ether extract, 10 14 percent by mass, Min Total ash (on dry basis), 12.0 6 percent by mass,Max Acid insoluble ash, 1.0 8 perce,nt by mass, Afax 51 Metbod of;rest. Ref to No. ~I;A..nne x of C! No. of Annex TIus Indian IS 1799 : 1985 IS 13545 : Stalldard vi) Crude, fibre, percent 15 13 by mass, Max (see Note) vii) Lead (as Ph), mg/'I<g, 7.5 A Max viii) Cadmium, mg!kg, Max Nil A ix) Arseni.c (as As), mglkg, Max Nil B NOTE -- Changing the limit of crude fibre would be considered only after modification ; Preverttion ofFoodAdu.ltrationRules, 1955. ( Page 2, clause 5 ) --Delete the words 'and 3..5 ' and 'col 4 of. (FAD 9) Reprography Unit, BIS, N~~ DelhC IS 1909 : 1992 Indian Standard INDIAN CURRY POWDER - SPECIFICATION ( First Revision) 1 SCOPE and/or rodent matter and moulds when examined with naked eye (corrected, if This Indian Standard prescribes the require necessary for abnormal vision) or with such ments, method of sampling and tests for Indian magnification as may be necessary in any curry powder. particular case. If the magnification exceeds 10 x , this fact shall be stated in the test report. 2 REFERENCES The material shall also be free from added colouring matter and preservatives other than The following Indian Standards are necessary salt. adjuncts to this standard. 3.3 Taste and Flavour IS No. Title Indian curry powder shall have a fresh and 265 : 1987 Hydrochloric acid ( third characteristic taste and flavour. It shall have revision) no foreign flavour, rancidity and mustiness. 1070 : 1977 Water for general laboratory use ( second rev ision ) 3.4 The Indian curry powder shall also comply with the req uirements given in Table 1. 1797 : 1985 Methods of test for spices and condiments ( second revision) 4 SAMPLING 1877 : 1985 Terminology for spices and Representative samples of the material shall be condiments (second revision) drawn according to the procedure described 13145 : 199] Method of sampling for spices in IS 13145 : 1991. and condiments Table 1 Requirements for Indian Curry Powder 3 REQ UIREMENTS ( Clause 3.4 ) 3.1 Constituents 3.1.1 In the preparation of Indian curry powder Sl Characteristic Require- Method of Test, any of the spices and condiments listed in No. ment Ref. to IS 1877 : 1985 may be used. These shaH be listed r-----"-.---~ Annex Cl No. of in the descending order of their proportion on of this IS 1797 : the container. Edible starch and edible Standard 1985 common salt may be added while preparing the (1) (2) (3) (4) (5) material and declarations to these effect shall i) Moisture, percent by 10-0 6 be made. The quantities of spices and condi mass, Max ments shall not be less than 85 percent of the ii) Volatile oil, mi/IOO g, 0-25 15 Min total mass. iii) Non-volatile e.ther ex- 10 14 3.1.2 Edible common salt shall not be more tract, percent by mass, Min than 5 percent of the total mass. iv) Total ash (on dry basis), 12-0 percent by mass, Max 3.1.3 For export purposes only, the quantities v) Acid insoluble ash, 1-0 9 of spices and condiments shall be 70 percent, percent by mass, Max farinaceous matter 20 percent and salt 10 vi) Crude fibre, percent by 15-0 13 percent respectively of the total mass of curry mass, Max ( see Note) vii) Lead ( as Ph), mg/kg, 7·5 12 powder. Max viii) Cadmium, mg/kg, Max Nil A 3.2 Description ix) Arsenic (as As ) mg /kg, Nil B Max Indian curry powder shall be prepared by NOTE - The value will change subject to the modi grinding clean, dried and sound spices and fications in the Prevention of Food Adulteration Rules, condiments. It shall be free from dirt, insects, 1955. IS 1909 : 1992 5 TESTS b) Name and address of the manufacturer; Tests shall be carried out in accordance c) Batch or code number; with 3.4 and 3.5 and by the method referred to in col 4 of Table 1. d) Net mass in metric unit; 6 PACKING e) Composition giving the names of spices and condiments used in the preparation 6.1 Indian curry powder shall be packed in of the curry powder; sealed, clean and sound suitable food grade containers. f) Direction for use; and 6.1.1 A suitable number of such containers g) "Best before" date. shall be packed in wooden or cardboard cases. 7 MARKING 7.2 Each case shall also be marked with the particulars ( a ) to ( d ) as in 7.1. 7.1 The following particulars shall be marked or labelled on each container: 7.2.1 If glass container are used, each case a) Name of the material and the trade shall be marked, in addition with the words name or brand name, if any; "Glass handle with care". ANNEX A [ Table 1, Sl No. (viii) ] DETERMINATION OF CADMIUM CONTENT A-I PRINCIPLE A-3.4 Sulphuric Acid The sample is digested with nitric acid, sul A-3.5 Hydrochloric Acid --O' 2 N. phuric acid and hydrogen peroxide. All react A-3.6 Chloroform ive metals are extracted from solution, after adjustment to pH 9, with dlthiazone in chloro A-3.7 Hydrogen Peroxide - 50 percent ( vjv). form. Cadmium is removed by stripping chloro form solution with dilute hydrochloric acid A-3.8 Citric Acid, Monohydrate and determined by atomic absorption spectro A-3.9 Ammonium Hydroxide photometer at 228·8 nm. A-3.10 Thymol Blue Indicator A-2 ATOMIC ABSORPTION Titrate 0·1 g thymol blue in agate mortar with SPECTROPHOTOMETER 4·3 ml of 0'05 N sodium hydroxide solution. The apparatus shall be having a hollow-cathode Dilute to 200 ml with water. cadmium lamp and 10 cm burner head; wave A-3.l1 Ditbizone Solution length 228·8 nm, range 0-2,0 j.Lg/ml. A-3.l!.1 Concentrated Solution A-2.t Glassware Take 200 dithizone in 200 ml chloroform. All glassware shall be thoroughly washed with A-3.l1.2 Diluted Solution 8·0 N nitric acid and rinsed with water. Beakers and watchglasses shall be covered Take 1 ml of concentrated solution and dilute during all operation. in 4 ml chloroform. Prepare fresh solution daily of the required volume. A-3 REAGENTS A-3.12 Standard Cadmium Solution A-3.l Nitric Acid - Low in lead and cadmium. A-3.12.1 Stock Solution A-3.2 Hydrochloric Acid - 2 N. Dissolve 1·000 g cadmium in 165 ml hydro A-3.3 Nitric Acid - 8·0 N. chloric acid and dilute to 1 000 m! with water. 2 IS 1909 : 1992 A-3.12.2 Intermediate Solution Add 1 ml thymol blue indicator, adjust the pH to 8-8 by slow addition of ammonium hydr Dilute 10 mi stock solution with 2 N hydro oxide while cooling on an ice bath till the chloric acid to 1 000 mt. Prepare just before colour changes frorn yellowish green to greenish use. blue. Transfer the solution quantitatively to a 250-m1 separating funnel using water and A-3.12.3 FVorking Solution dilute to about 150 ml. Dilute 0, 1,5, 10 mi intermediate solution to A-4.6 Cool the solution and extract twice with 100 ml with 2 N hydrochloric acid. 5 mi portions of concentrated dithizone solution, shaking 1-2 minutes each time. A-4 PROCEDURE Continue extraction with 5 ml portions of dilute A-4.1 \Veigh 50 g sample into a 1 500-ml beaker, dithizone solution until last 5 ml portion of add several boiling chips or beads, carefully add dithizcne extract shows no change in colour. 25 ml nitric acid, cover and warm gently to Combine clithizone extracts in a 125-1111 sepa initiate reaction. Carefully add 25 mi nitric rating funnel, washing with 50 1111 water and acid again when reaction subsides. Warm again transfer the solution to another 125-1111 sepa and continue until 100 mI nitric acid has been rating funnel. Wash with water and then with added. Heat until most nitrous oxide fumes 5 ml chloroform. Add this solution to the have evolved, controlling excessive frothing by dithizone extracts. Add 50 ml 0·2 N hydro cooling or quenching with water from a wash chloric acid to the combined dithizone bottle. Some cellulosic or fatty material, if extracts, shake vigorously for 1 minute and any, will remain undissolved. allow the layers to separate. Discard the dithizone layer. Wash the aqueous solution A-4.2 To remove the visible fat, cool the beaker with chloroform and then discard the chloro in ice and decant clear aqueous solution on a form washings. Transfer the aqueous solution funnel containing glass wool pad filtering into quantitatively to a 400-ml beaker, add boiling a I OOO-mi beaker. Wash the 1 500-ml beaker chips and carefully evaporate to dryness. with 100 mI water, heat and swirl vigorously Rinse down the sides of the beaker with 10-20 and filter into the 1 OOO-mi beaker. mi water and again evaporate to dryness. A-4.3 Add 20 ml sulphuric acid, 300 ml water A-4.7 Set the spectrophotometer to previously and evaporate over flame to charring. When established conditions, using air-acetylene charring becomes extensive, add 1 mI hydrogen oxidizing flame and 228·8 nm resonant wave peroxide cautjously at a time. Care should be length. Dissolve the dried residue in 5 ml 2 N taken while adding hydrogen peroxide. The hydrochloric acid and determine the absorp reaction should subside before adding next tion ( A) of sample and standard solutions portion of the oxidant, which should never be against 2 N hydrochloric acid as blank. Flush more than 1 ml at a time. Continue addition the burner with water between the readings. of hydrogen peroxide till the solution is colour Use scale expansion controls to obtain 10 X less. Then heat vigorously to remove excess expansion, as convenient. Calculate the hydrogen peroxide. Cool the digested meteral cadmium content from absorption curve against to room temperature. JLg cadmium per milIilitre of sample solution. A-4.4 Prepare reagent blank of 100 mt nitrjc A-5 CALCULATION acid, 20 ml sulphuric acid and same amount of water 3S added to the sample. Cautiously add Cadmium content, = ( j.Lg Cd/ml) >< (volume same amount of hydrogen peroxide as above, ( as Cd ), mg/kg of 2N RCI/sample in g ) and remove all nitric acid from blank. Carr V where blank through same operations as sample. . Cd = cadmium, and A-4.5 Add 2 g citric acid to cooled digest and cautiously dilute to about 25 lUI with water. HCI = hydrochloric acid. 3 IS 1909 : 1992 ANNEX B [ Table 1, Sl No. (ix) ] DETERMINATION OF ARSENIC CONTENT B-1 PRINCIPLE corresponding to 0, 5, 10, 15, 20 and 25 p.g of arsenic and proceed as given in B-4.2.1.1. Absorption of arsenic in a solution of silver diethyldithiocarbamate involves the reaction: B-4.2.1.1 Add 10 ml of concentrated hydro AsH + 6 Ag ( DDTC ) = 6Ag + 3 H ( DDTC) cloric acid and dilute to 50 ± 5 mi with water. 3 + As (DDTC h Add 2 mi of potassium iodide and stannous chloride solution respectively. Mix well and The colloidally dispersed silver, purplish-red let it stand for 15 to 20 minutes. Pack lightly colour, is measured by photometry (nephelo the top third of the connecting tube with metry) at 540 nm. impregnated absorbent cotton wool and assemble with the absorption tube. Transfer B~2 APPARATUS 5·0 ml of silver diethyldithiocarbamate solution to absorption tube C. After 15 to 20 minutes, B-2.1 Evolution and Absorption Apparatus introduce 5 g of zinc granules into the conical flask A and quickly reassemble the apparatus. It shall consist oft1 conical flask A of 100 ml Allow the reaction to proceed for 45 to 60 capacity for evolg~ipn of arsenic, a connecting minutes at room temperature. tube B to trap hydrbgen sulphide, and absorp tion tube C with a spherical or conical ground glass joint. A spring clip may be used to 10TOq,12 ensure firm joint between the connecting tube B and absorption tube C when a spherical joint is used. Suitable forms of apparatus using spherical joint with fritted glass are shown in BALL Fig. 1 and 2. JOINT B-2.2 Spectrophotometer or Photoelectric c Absorptiometer With filters in the range 520 to 560 nm and 10 mm cells. o NOTE - The glassware should not be rinsed with (]) B organic solvent to facilitate drying. Traces of organic matter, especially, acetone may be adversely affect the traction between zinc and acid. B-3 REAGENTS B-3.1 Concentrated Hydrochloric Acid ~ see IS 265 : 1987. B-3.2 Silver Diethyldithiocarbamate Solution Dissolve 1 g of silver diethyldithiocarbamate in water white pyridine and dilute to 200 ml with pyridine. Store the solution in stoppered glass bottles away from light. B-4 PROCEDURE B-4.1 Preparation of Calibration Curve All dimensions in millimetres. B-4.2 Evolution of Arsenic FIG. 1 ApPARATUS FOR DETERMINATION B-4.2.1 Transfer to a series of 100 mI conical OF ARSENIC flasks, aliquots of standard arsenic solution ( SILVER DIETl-IYLDITHIOCARBAMATE METHOD) 4