GB 1886.167-2015National Food Safety Standard -- Food Additives -- Nethole (English PDF)

2.1 Chemical Name

The trans-propenyl anisole Formula 2.2 C10H12O

2.3 Formula

2.4 Relative molecular mass

148.21 (according to 2007 international relative atomic mass)

3.1 Sensory requirements

Sensory requirements shall comply with the requirements of Table 1.

Table 1 Sensory requirements

Project requires test methods Color white to pale yellow or colorless to pale yellow Solidified or liquid state the sample is placed on a clean white or color than the inner tube, were visually observed Aroma of star anise-like 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 °C) 1mL or 1g sample soluble in 3mL90% (volume fraction) ethanol GB/T 14455.3 Trans-anethole content, w /% >= 99.0 Appendix A Cis-anethole content, w /% <= 0.2 Appendix A Refractive index (25 °C) 1.5570 ~ 1.5620 GB/T 14454.4 the relative density (25 °C/25 °C) 0.983 ~ 0.988 GB/T 11540 Heavy metals (Pb)/(mg/kg) <= 10.0 GB 5009.74 Appendix A Determination of trans-anethole content of cis-anethole 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 Additives anethole gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additive gas chromatogram anethole (Area normalization method) B.1 food additives anethole gas chromatogram Food Additives anethole gas chromatography is shown in Figure B.1.

Explanation.

1 --- cis-anethole;

2 --- trans-anethole.

Figure B.1 food additives anethole gas chromatogram

B.2 operating conditions B.2.1 Column. capillary column length 30m, an inner diameter of 0.25mm.

B.2.2 stationary phase. polyethylene glycol.

B.2.3 film thickness. 0.25µm.

B.2.4 chromatography oven temperature. 170 °C constant temperature.

B.2.5 inlet temperature. 210 °C.

B.2.6 detector temperature. 260 °C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 carrier gas. nitrogen.

Before B.2.9 column pressure. 60kPa.

B.2.10 Injection volume. 0.1µL.

B.2.11 Split ratio. 100.1.

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