GB 29974-2013 English PDF

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GB 29974-2013: Food additive -- Furfuryl mercaptan (coffee aldehyde)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 29974-2013	189	Add to Cart	3 days	Food additive -- Furfuryl mercaptan (coffee aldehyde)	Valid

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Basic data

Standard ID: GB 29974-2013 (GB29974-2013)
Description (Translated English): Food additive -- Furfuryl mercaptan (coffee aldehyde)
Sector / Industry: National Standard
Classification of Chinese Standard: C54
Classification of International Standard: 67.020
Word Count Estimation: 8,815
Regulation (derived from): China Food & Drug Administration [2013] No. 234, November, 1, 2013
Issuing agency(ies): National Health and Family Planning Commission of the People's Republic of China
Summary: This standard applies to food additives: furfurylthiol (coffee aldehyde).

GB 29974-2013: Food additive -- Furfuryl mercaptan (coffee aldehyde)

---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.
Food additive-Furfuryl mercaptan (coffee aldehyde) National Standards of People's Republic of China National Food Safety Standard Food additives furfuryl mercaptan (coffee aldehyde) Issued on. 2013-11-29 2014-06-01 implementation National Food Safety Standard Food additives furfuryl mercaptan (coffee aldehyde)

1 Scope

This standard applies to the alcohol and thiourea for raw materials of food additives furfuryl thiol (coffee aldehyde). 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name 2-furyl methyl mercaptan Formula 2.2 C5H6OS 2.3 formula SH 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 Color colorless (long home easily become dark brown) than the sample is placed inside the color tube, were visually observed State oily liquid aroma Particularly strong diffusion of the atmosphere, it is diluted into Discovery Fast coffee-like aroma, caramel aroma - baking fragrant, sweet 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 Furfuryl thiol content, w /% ≥ 97.0 Appendix A Refractive index (20 ℃) 1.527 ~ 1.542 GB/T 14454.4 The relative density (25 ℃/25 ℃) 1.122 ~ 1.132 GB/T 11540

Appendix A

Determination of furfuryl mercaptan 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 According to GB/T 11538-2006 provisions in 11.4, shall comply with the requirements. Food Additives furfuryl mercaptan gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additives furfuryl mercaptan gas chromatogram (Area normalization method) B.1 food additive gas chromatogram furfurylthiol Figure B.1. Figure B.1 food additives furfuryl mercaptan gas chromatogram B.2 operating conditions B.2.1 Column. capillary column, length 30 m, an inner diameter of 0.25 mm. B.2.2 stationary phase. polyethylene glycol. B.2.3 film thickness. 0.25 μm. B.2.4 chromatography oven temperature. 130 ℃ constant temperature 10 min; then linear temperature program from 130 ℃ ~ 200 ℃, the rate of 10 ℃/min; most After 200 ℃ heated 20 min. B.2.5 Inlet temperature. 240 ℃. B.2.6 detector temperature. 240 ℃. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 carrier gas. nitrogen. B.2.9 pre-column pressure. 60 kPa. B.2.10 Injection volume. about 0.2 μL. B.2.11 split ratio. 100︰1. ......

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