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GB 1886.139-2015 English PDF

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GB 1886.139-2015: National Food Safety Standard -- Food Additives -- Thymol
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Basic data

Standard ID GB 1886.139-2015 (GB1886.139-2015)
Description (Translated English) National Food Safety Standard -- Food Additives -- Thymol
Sector / Industry National Standard
Classification of Chinese Standard X40
Word Count Estimation 6,649
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 1886.139-2015: National Food Safety Standard -- Food Additives -- Thymol

---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 thymol) National Standards of People's Republic of China National Food Safety Standard Food Additives thymol Issued on. 2015-09-22 2016-03-22 implementation People's Republic of China National Health and Family Planning Commission released National Food Safety Standard Food Additives thymol

1 Scope

This standard applies to natural terpenoids oxygenate or other raw materials, the chemical reaction of thymol food additives (also known as musk Vanilla phenol). 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name Formula 2.2 C10H14O 2.3 formula 2.4 relative molecular mass 150.22 (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 Color White State crystal or crystalline powder The sample is placed on a clean white paper, were visually observed aroma It has a strong sweet herbal scent incense (medicine) grassy, rich Aromatic 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 Solubility (25 ℃) 1g sample soluble in 3mL80% (volume fraction) ethanol GB/T 14455.3 Thymol content, w /% ≥ 98.0 Appendix A Melting point/℃ ≥ 49.0 GB/T 14457.3

Appendix A

Determination of the content of thymol 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 Sample Preparation. Weigh 1g sample was dissolved 10mL95% (volume fraction) ethanol, shake spare. 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 Additives thymol gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additives thymol gas chromatogram (Area normalization method) B.1 food additives thymol gas chromatogram Food Additives thymol gas chromatography is shown in Figure B.1. Explanation. 1 --- Ethanol (solvent); 2 --- thymol. Figure B.1 food additives thymol 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. Nitro terephthalic acid modified polyethylene glycol. B.2.3 film thickness. 0.5μm. B.2.4 chromatography oven temperature. linear temperature programmed from 80 ℃ ~ 240 ℃, the rate of 4 ℃/min. B.2.5 Inlet temperature. 250 ℃. B.2.6 detector temperature. 250 ℃. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 carrier gas. nitrogen. B.2.9 carrier gas flow rate. 1mL/min. B.2.10 Injection volume. 1μL. B.2.11 split ratio. 30.1.

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