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National food safety standards Food Additives -- 3-Methylthiopropanol
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GB 28340-2012
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Basic data
| Standard ID | GB 28340-2012 (GB28340-2012) |
| Description (Translated English) | National food safety standards Food Additives -- 3-Methylthiopropanol |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C54;X40 |
| Classification of International Standard | 67.220.20 |
| Word Count Estimation | 6,633 |
| Regulation (derived from) | Ministry of Health Bulletin 2012 No. 7 |
| Issuing agency(ies) | Ministry of Health of the People's Republic of China |
| Summary | This Chinese standard applies to acrolein or acrylic alcohol as raw materials obtained methyl mercaptan as a food additive 3 Methylthiopropanol. |
GB 28340-2012: National food safety standards Food Additives -- 3-Methylthiopropanol
---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 Food Additives.3 - Methylthiopropanol
National Standards of People's Republic of China
National standards for food safety
Food Additives 3-Methylthiopropanol
2012-04-25 release
2012-06-25 Implementation
Issued by the Ministry of Health of the People's Republic of China
National standards for food safety
Food Additives 3-Methylthiopropanol
1 Scope
This standard applies to acrolein as raw material or propylene alcohol and methyl mercaptan as raw material prepared by the food additive 3 - methylthiopropanol.
2 chemical name, molecular formula, structural formula and relative molecular mass
2.1 Chemical name
2.2 Molecular formula
C4H10OS
2.3 Structural formula
CH3SCH2CH2CH2OH
2.4 Relative molecular mass
106.18 (according to.2007 International Relative Atomic Quality)
3 technical requirements
3.1 sensory requirements. should be consistent with the provisions of Table 1.
Table 1 sensory requirements
The project requires a test method
Color cang yellow
State liquid
The sample was placed in a colorimetric tube and visually observed
A strong aroma of sweetness, soup or meat - like aroma GB/T 14454.2
3.2 Physical and chemical indicators. should be consistent with the provisions of Table 2.
Table 2 Physical and chemical indicators
Item Index Test Method
3-methylthiopropanol content, w /% ≥ 98.0 Appendix A
Refractive index (20 ° C) 1.483 ~ 1.493 GB/T 14454.4
Relative density (25 ℃/25 ℃) 1.023 ~ 1.029 GB/T 11540
Appendix A
Determination of 3 - methylthiopropanol 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
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 implementation of the provisions.
Food Additive 3-Methylthiopropanol Typical Gas Chromatography (Area Normalization) See Appendix B.
Appendix B
Food additive 3 - methylthiopropanol Typical gas chromatogram
(Area normalization method)
B.1 Food Additive 3-Methylthiopropanol Typical Gas Chromatography
Food additives 3-methylthiopropanol Typical gas chromatograms are shown in Figure B.1.
Figure B.1 Food additive 3-methylthiopropanol Typical gas chromatogram
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. 160 ℃ constant temperature 10min, and then linear temperature from 160 ℃ ~.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. 70 kPa.
B.2.10 Injection volume. 0.2 μL.
B.2.11 Split ratio. 1/100.
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