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GB 1886.50-2015 English PDF

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GB 1886.50-2015: National Food Safety Standard -- Food Additives -- Methyl-3-mercapto-furan
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GB 1886.50-2015English149 Add to Cart 3 days [Need to translate] National Food Safety Standard -- Food Additives -- Methyl-3-mercapto-furan Valid GB 1886.50-2015

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Basic data

Standard ID GB 1886.50-2015 (GB1886.50-2015)
Description (Translated English) National Food Safety Standard -- Food Additives -- Methyl-3-mercapto-furan
Sector / Industry National Standard
Classification of Chinese Standard X44
Classification of International Standard 71.100.60
Word Count Estimation 7,720
Date of Issue 2015-09-22
Date of Implementation 2016-03-22
Older Standard (superseded by this standard) GB 23487-2009
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 1886.50-2015: National Food Safety Standard -- Food Additives -- Methyl-3-mercapto-furan

---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 methyl-3-mercapto-furan) National Standards of People's Republic of China National Food Safety Standard Food additive methyl-3-mercapto-furyl Issued on. 2015-09-22 2016-03-22 implementation People's Republic of China National Health and Family Planning Commission released

Foreword

This standard replaces GB 23487-2009 "Food additive methyl-3-furan thiol." This standard compared with GB 23487-2009, the main changes are as follows. --- Standard name was changed to "national food safety standards for food additives methyl-3-mercapto furan." National Food Safety Standard Food additive methyl-3-mercapto-furyl

1 Scope

This standard applies to 2-methyl furan and thioacetic acid as raw materials by a chemical reaction of a food additive methyl-3-mercapto-furan (Also known as 2-methyl-furan thiol). 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Methyl-3-mercapto-2-methyl-furan or furan thiol Formula 2.2 C5H6OS 2.3 formula 2.4 relative molecular mass 114.16 (according to 2007 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 Project requires test methods Pale pink to pale orange color Liquid state The sample was placed in a cuvette, were visually observed Aroma of barbecue aroma GB/T 14454.2 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 3-mercapto-2-methyl-furan content, w /% ≥ 97.0 Appendix A Refractive index (20 ℃) 1.5090 ~ 1.5300 GB/T 14454.4 The relative density (25 ℃/25 ℃) 1.100 ~ 1.150 GB/T 11540

Appendix A

Determination of 3-mercapto-2-methyl-furan Content A.1 instruments and equipment A.1.1 chromatograph. According to GB/T 11538-2006 provisions in Chapter 5. A.1.2 Column. capillary column. A.1.3 Detector. Hydrogen flame ionization detector. A.2 Determination Area normalization method. According to GB/T 11538-2006 10.4 Determination. A.3 repeatability and results are shown Performed according to GB/T 11538-2006 11.4 provisions. Food additive methyl-3-mercapto furan gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additive methyl-3-mercapto-furyl gas chromatogram (Area normalization method) Food additives B.1 3-mercapto-2-methyl-furan-gas chromatogram Food additive methyl-3-mercapto-furan-by gas chromatography is shown in Figure B.1. Explanation. 1 --- 3-mercapto-2-methyl furan; 2 --- bis (2-methyl-3-furyl) disulfide. Figure B.1 food additive methyl-3-mercapto-furyl gas chromatogram B.2 operating conditions B.2.1 Column. capillary column length 30m, an inner diameter of 0.32mm. B.2.2 stationary phase. 5% phenyl, 95% dimethylpolysiloxane. B.2.3 film thickness. 0.50μm. B.2.4 chromatography oven temperature. 80 ℃ constant temperature 2min; then linear temperature programmed from 80 ℃ ~ 220 ℃, the rate of 20 ℃/min; and finally 220 ℃ constant temperature 10min. B.2.5 Inlet temperature.200 ℃. B.2.6 detector temperature. 220 ℃. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 carrier gas. nitrogen. B.2.9 carrier gas flow rate. 4mL/min. B.2.10 Injection volume. about 0.2μL. B.2.11 Split ratio. 100.1. 5102- 05􀏕 6881

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