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GB 1886.139-2015: National Food Safety Standard -- Food Additives -- Thymol
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| GB 1886.139-2015 | English | 129 |
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National Food Safety Standard -- Food Additives -- Thymol
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GB 1886.139-2015
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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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