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GB 30606-2014 English PDF

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GB 30606-2014: National Food Safety Standard -- Food Additives -- Ferrous Bisglycinate
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GB 30606-2014English209 Add to Cart 3 days [Need to translate] National Food Safety Standard -- Food Additives -- Ferrous Bisglycinate Valid GB 30606-2014

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Basic data

Standard ID GB 30606-2014 (GB30606-2014)
Description (Translated English) National Food Safety Standard -- Food Additives -- Ferrous Bisglycinate
Sector / Industry National Standard
Classification of Chinese Standard C53
Classification of International Standard 67.020
Word Count Estimation 9,981
Date of Issue 4/29/2014
Date of Implementation 11/1/2014
Regulation (derived from) National Health and Family Planning Commission Bulletin No. 7, 2014
Issuing agency(ies) National Health and Family Planning Commission of the People's Republic of China
Summary This Standard specifies the Gan nitric acid and iron reduction reaction, by spray drying of food additives ferrous glycine.

GB 30606-2014: National Food Safety Standard -- Food Additives -- Ferrous Bisglycinate

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(Ferrous glycine food additive) National Standards of People's Republic of China National standards for food safety Food additives Glycine ferrous Released.2014-04-29 2014-11-01 implementation People's Republic of China National Health and Family Planning Commission released National standards for food safety Food additives Glycine ferrous

1 Scope

This standard applies to glycine and reduced iron powder reaction, the spray drying of the food additive glycine ferrous. 2 molecular formula, structural formula and relative molecular mass 2.1 Molecular formula Fe (OOCCH2NH2) 2 · 2H2O. 2.2 Structural formula 2.3 Relative molecular mass 239.99 (according to.2011 international relative atomic mass).

3 technical requirements

3.1 sensory requirements Sensory requirements shall comply with the requirements of Table 1. Table 1 sensory requirements The project requires a test method Color dark brown or gray green State powder Take the appropriate amount of sample in a clean, dry white porcelain dish In the natural light, observe the color and state 3.2 Physical and chemical indicators Physical and chemical indicators should be consistent with the provisions of Table 2. Table 2 Physical and chemical indicators Item Index Test Method (Fe2) content (in dry basis), w /% 20.0 to 23.7 Appendix A, A.3 Nitrogen (based on dry basis), w /% 10.0 ~ 12.0 A.4 Ferric (Fe3) (dry basis), w /% ≤ 2.0 A.5 Dry reduction, w /% ≤ 7.0 GB 5009.3 direct drying method a Total iron (on a dry basis), w /% 19.0 ~ 24.0 A.6 Lead (Pb)/(mg/kg) ≤ 1 GB 5009.12 a105 ℃, 3h.

Appendix A

Testing method A.1 General provisions The reagents and water used in this standard refer to the pure reagent and the tertiary water specified in GB/T 6682 when no other requirements are specified. Standard solution used in the test, the standard solution of impurities, preparations and products, in the absence of other requirements, according to GB/T 601, GB/T 602, GB/T 603. The solution used in the test refers to the aqueous solution when it is not specified in the formulation of the solvent. A.2 Identification test A.2.1 Reagents and materials A.2.1.1 hydrochloric acid solution. 1 3. A.2.1.2 potassium ferricyanide solution. 100g/L, prepared before use. A.2.1.3 Sodium hydroxide solution. 43 g/L. A.2.1.4 Sodium nitrite solution. 100 g/L. A.2.2 Identification method A.2.2.1 Identification of bivalent iron Weigh about 0.1g sample, accurate to 0.01g, dissolved in 10mL water, to this solution by adding potassium cyanide solution, that is, dark blue Of the precipitation. The precipitate was insoluble in hydrochloric acid solution but was dissolved in sodium hydroxide solution. Also called about 0.1g sample, accurate to 0.01g, soluble 20mL water, dropping sodium hydroxide solution that produces green and white precipitation, after moving the color becomes green, and then become tan. A.2.2.2 Identification of amino groups Weigh about 0.1g sample, accurate to 0.01g, dissolved in 10mL water, add 5 drops of hydrochloric acid solution and the newly prepared sodium nitrite solution 1 mL produces a colorless gas. A.2.2.3 Identification of infrared spectroscopy The samples were prepared by infrared absorption spectrophotometry and potassium bromide tabletting. The samples were compared with the control spectra (see Appendix B). Should be basically the same. A.3 Determination of ferrous content A.3.1 Methodological Summary In the acidic medium, the sample was titrated with 1,10-phenanthroline-ferrous as standard and titrated with standard titration with cerium sulfate standard. Iron content. A.3.2 Reagents and materials A.3.2.1 Sulfuric acid. A.3.2.2 standard titration solution of cerium sulfate. c [Ce (SO4) 2] = 0.1 mol/L. A.3.2.3 1,10-phenanthroline-ferrous indicator liquid. A.3.3 Analysis steps Approximately 1 g of the dried sample under dry reduction conditions was weighed to 0.0001 g, placed in a solution of 150 mL of water and 10 mL of sulfuric acid in a 300 mL Erlenmeyer flask. Add 1 drop of 1,10-phenanthroline-ferrous indicator solution, immediately with cerium sulfate standard titration solution Liquid titration to light yellow for the end. At the same time as the measurement, the same amount of reagent solution was used as a blank test in the same procedure as in the measurement. A.3.4 Calculation of results The mass fraction w1 (%) of the divalent iron content (on a dry basis) is calculated according to formula (A.1) w1 = (V1-V0) × c × M m × 1000 × 100% (A.1) Where. V1 --- sample consumption of cerium sulfate standard titration solution volume value in milliliters (mL); V0 --- blank test consumption of cerium sulfate standard titration solution volume value in milliliters (mL); c - the exact value of the standard titration solution of cerium sulfate standard in moles per liter (mol/L); M - the molar mass of iron in grams per mole (g/mol) [M (Fe) = 55.85]; m - the mass of the sample, in grams (g); 1000 --- conversion factor. The results of the test are based on the arithmetic mean of the parallel measurement results. The absolute difference between the two independent determinations obtained under repeatability conditions Value is not greater than 0.2%. A.4 Determination of nitrogen A.4.1 Methodological Summary Determination of nitrogen content in samples by Kjeldahl method. A.4.2 Reagents and materials A.4.2.1 Potassium Sulfate. A.4.2.2 copper sulfate pentahydrate. A.4.2.3 Sulfuric acid. A.4.2.4 Sodium hydroxide solution. 300 g/L. A.4.2.5 Boric acid solution. 20 g/L. A.4.2.6 Standard titration solution for hydrochloric acid. c (HCl) = 0.1 mol/L. A.4.2.7 Methyl red-methine blue mixed indicator solution. A.4.3 Analysis steps A.4.3.1 Automatic nitrogen fixation method (Arbitration method) Weigh about 0.3g in the dry reduction under the conditions of dry test samples, accurate to 0.0001g, placed in the automatic nitrogen digestion tube, Add 3.0g potassium sulfate, 0.15g copper sulfate pentahydrate, along the bottle wall slowly add 10mL sulfuric acid. Placed on the digestion device, at 400 ℃ digestion 40 min, cooling. Placed in the automatic nitrogen device device, the digestion tube by adding 60mL sodium hydroxide solution, the absorption bottle by adding 50mL boron Acid solution and 8 drops of methyl red - methine blue mixed indicator solution, distilled to the distillate was neutral. Titration with hydrochloric acid standard titration to gray purple For the end. At the same time as the measurement, the same amount of reagent solution was used as a blank test in the same procedure as in the measurement. A.4.3.2 Direct distillation method The measurement was carried out by direct distillation in HG/T 4103. 0.4 g was weighed after drying under dry reduction measurement Sample. A.4.4 Calculation of results The mass fraction w2 (%) of the nitrogen content (on a dry basis) is calculated according to formula (A.2) w2 = (V1-V0) × c × M m × 1000 × 100% (A.2) Where. V1 --- sample consumption of hydrochloric acid standard titration solution volume of the value in milliliters (mL); V0 --- blank test consumption of hydrochloric acid standard titration solution volume value in milliliters (mL); c - the exact value of the standard titration solution for hydrochloric acid, in moles per liter (mol/L); M - the molar mass of the nitrogen in grams per mole (g/mol) [M (N) = 14.01]; m - the mass of the sample, in grams (g); 1000 --- conversion factor. The results of the test are based on the arithmetic mean of the parallel measurement results (leave a decimal). Two independent tests obtained under repetitive conditions The absolute difference between the results is not more than 0.2%. A.5 Determination of ferric iron A.5.1 Methodological Summary In the acidic medium, the sample was titrated with starch as the indicator and titrated with sodium thiosulfate standard to calculate the trivalent iron content in the sample. A.5.2 Reagents and materials A.5.2.1 Hydrochloric acid. A.5.2.2 Potassium iodide. A.5.2.3 sodium thiosulfate standard titration solution. c (Na2S2O3) = 0.1mol/L. A.5.2.4 Starch indicator. 10 g/L. A.5.3 Analysis steps Approximately 5 g of the dried sample under dry reduction conditions was weighed to 0.0001 g, and 100 mL of water 10mL hydrochloric acid in a 250mL iodine bottle, and dissolved. Add 3g potassium iodide, cover the stopper, gently shake, placed in the dark 5min, joined 2mL starch indicator solution, titrated with sodium thiosulfate titration solution to blue disappears as the end point. At the same time as the measurement, the same amount of reagent solution was used as a blank test in the same procedure as in the measurement. A.5.4 Calculation of results The mass fraction of trivalent iron content w3 (%) is calculated according to formula (A.3) w3 = (V1-V0) × c × M m × 1000 × 100% (A.3) Where. V1 --- sample consumption of sodium thiosulfate standard titration solution volume value, the unit is ml (mL); V0 --- blank test consumption sodium thiosulfate standard titration solution volume value, the unit is ml (mL); c - the exact value of the concentration of sodium thiosulfate standard titration solution in moles per liter (mol/L); M - the molar mass of iron in grams per mole (g/mol) [M (Fe) = 55.85]; m - the mass of the sample, in grams (g); 1000 --- conversion factor. The results of the test are based on the arithmetic mean of the parallel measurement results. The absolute difference between the two independent determinations obtained under repeatability conditions The value is not greater than 0.1%. A.6 Determination of total iron A.6.1 Methodological summary After digestion of the sample, starch was used as indicator, titration with sodium thiosulfate standard titration solution, calculate the total iron content in the sample. A.6.2 Reagents and materials A.6.2.1 Nitric acid. A.6.2.2 Hydrochloric acid. A.6.2.3 Potassium iodide. A.6.2.4 sodium thiosulfate standard titration solution. c (Na2S2O3) = 0.1mol/L. A.6.2.5 Starch indicator. 10 g/L. A.6.3 Analysis steps Approximately 0.5 g of the dried sample under dry drier measurement conditions, accurate to 0.0001 g, placed in a digestion vessel, and added 5 mL Nitric acid, mix well, cover the surface dish, or use a steam recovery unit to heat at 95 ° C ± 5 ° C without boiling 30min ~ 40min, if there is brown smoke in the specified time overflow, then the nitric acid did not completely digest the sample, and then re-join 2mL nitric acid, continue under the conditions of heating 15min ~ 20min, until no brown smoke overflow, continue to heat digestion of the sample until the body The product is reduced to about 3 mL to ensure that the bottom of the vessel is covered with the digestion of the sample throughout the process, the digestion vessel is removed, Add 2mL hydrochloric acid, continue to 95 ℃ ± 5 ℃ keep boiling in the case of heating 15min ~ 20min, adding 2mL water to make it boiling Teng After cooling to room temperature, add 50mL of water, 3g potassium iodide, shake, in the dark place for 5min, with sodium thiosulfate standard titration solution drops Set, near the end of the point by adding 2mL starch indicator solution, continue to titration to blue disappear as the end. A.6.4 Calculation of results The mass fraction of the total iron content w4 (%) is calculated according to formula (A.4) w4 = V × c × M m × 1000 × 100% (A.4) Where. V --- sample consumption of sodium thiosulfate standard titration solution volume value in milliliters (mL); c - the exact value of the concentration of sodium thiosulfate standard titration solution in moles per liter (mol/L); M - the molar mass of iron in grams per mole (g/mol) [M (Fe) = 55.85]; m - the mass of the sample, in grams (g); 1000 --- conversion factor. The results of the test are based on the arithmetic mean of the parallel measurement results. The absolute difference between the two independent determinations obtained under repeatability conditions The value is not greater than 0.5%.

Appendix B

Infrared Spectra of Ferrous Sulfate The infrared spectrum of ferrous hydrogens is shown in Figure B.1. Figure B.1 Infrared spectra of ferrous glycine

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