GB 1886.138-2015 English PDF

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GB 1886.138-2015: National Food Safety Standard -- Food Additives - 2-acetyl pyrazine
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 1886.138-2015	129	Add to Cart	3 days	National Food Safety Standard -- Food Additives - 2-acetyl pyrazine	Valid

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Basic data

Standard ID: GB 1886.138-2015 (GB1886.138-2015)
Description (Translated English): National Food Safety Standard -- Food Additives - 2-acetyl pyrazine
Sector / Industry: National Standard
Classification of Chinese Standard: X40
Word Count Estimation: 6,664
Date of Issue: 2015-09-22
Date of Implementation: 2016-03-22
Regulation (derived from): PRC National Health and Family Planning Commission 2015 No.8
Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China

GB 1886.138-2015: National Food Safety Standard -- Food Additives - 2-acetyl pyrazine

---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.
(National food safety standards for food additives 2-acetyl pyrazine) National Standards of People's Republic of China National standards for food safety Food Additives 2-Acetylpyrazine 2015-09-22 released 2016-03-22 Implementation People's Republic of China National Health and Family Planning Commission released National standards for food safety Food Additives 2-Acetylpyrazine

1 Scope

This standard applies to 2-cyanopyrazine or 2-ethyl pyrazine as raw materials by chemical reaction of the food additive 2 - acetyl pyrazine. 2 chemical name, molecular formula, structural formula and relative molecular mass 2.1 Chemical name 2-acetylpyrazine 2.2 Molecular formula C6H6N2O 2.3 Structural formula 2.4 Relative molecular mass 122.13 (according to the.2007 International Relative Atomic Quality)

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 Colorless to pale yellow State of crystallization Place the sample on a clean white paper and observe it visually Aroma with the aroma of popcorn 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 Solubility (25 ° C) 1 g Samples are fully dissolved in 20 mL 95% (volume fraction) Ethanol GB/T 14455.3 2-acetylpyrazine content, w /% ≥ 99.0 Appendix A Melting point/℃ 76.0 ~ 78.0 GB/T 14457.3

Appendix A

Determination of 2 - acetylpyrazine content A.1 Instruments and equipment A.1.1 chromatograph. according to GB/T 11538-2006 in Chapter 5 of the provisions. A.1.2 Column. Capillary column. A.1.3 Detector. Hydrogen flame ionization detector. A.2 Determination method Preparation of the sample. Weigh the sample 1g dissolved in 10mL 95% (volume fraction) of ethanol, shake back. Area normalization method. according to GB/T 11538-2006 10.4 determination of content. A.3 repeatability and result representation According to GB/T 11538-2006 11.4 provisions. Food additive 2-acetylpyrazine gas chromatogram (area normalization) See Appendix B.

Appendix B

Food Additive 2 - Acetylpyrazine Gas Chromatography (Area normalization method) B.1 Food Additive 2-Acetylpyrazine Gas Chromatography The food additive 2-acetylpyrazine gas chromatogram is shown in Figure B.1. Description. 1 --- Ethanol (solvent); 2 --- 2-acetylpyrazine. Figure B.1 Gas Chromatography of 2-Acetylpyrazine Food Additives B.2 Operating conditions B.2.1 Column. capillary column, length 30m, inner diameter 0.25mm. B.2.2 Stationary phase. Polyethylene glycol. B.2.3 Film thickness. 0.25 μm. B.2.4 Chromatographic furnace temperature. linear program temperature from 150 ℃ ~.200 ℃, the rate of 10 ℃/min. B.2.5 Inlet temperature. 240 ° C. B.2.6 Detector temperature. 240 ° C. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 Carrier gas. nitrogen. B.2.9 Pre-column pressure. 0.07 MPa. B.2.10 Injection volume. 2 μL. B.2.11 Split ratio. 100. 1. ......

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