GB 29985-2013Food additive -- Leaf alcohol (cis-3-hexene-1-ol) (English PDF)

2.1 Chemical Name

Cis-3-hexene-1-ol

Formula 2.2

C6H12O

2.3 Formula

2.4 Relative molecular mass

100.16 (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 the sample was placed in a colorless color colorimetric tube, were visually observed Liquid state Intense grassy aroma - green fragrant 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 Leaf alcohol (cis isomer) content, w /% >= 98.0 Appendix A Refractive index (20 °C) 1.436 ~ 1.443 GB/T 14454.4 the relative density (25 °C/25 °C) 0.846 ~ 0.850 GB/T 11540 Appendix A Determination of leaf alcohol 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 leaf alcohol gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food Additives leaf alcohol gas chromatogram (Area normalization method) B.1 food additives leaf alcohol gas chromatogram

Figure B.1.

1-- trans-3-hexen-1-ol;

2-- leaf alcohol (cis-3-hexene-1-ol);

Figure B.1 food additives leaf alcohol gas chromatogram

B.2 operating conditions B.2.1 Column. capillary column, length 30 m, an inner diameter of 0.32 mm.

B.2.2 stationary phase. polyethylene glycol.

B.2.3 film thickness. 0.50 µm.

B.2.4 chromatography oven temperature. 80 °C constant temperature.

B.2.5 Inlet temperature. 180 °C.

B.2.6 detector temperature.200 °C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 carrier gas. nitrogen.

B.2.9 pre-column pressure. 0.08 MPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 split ratio. 80︰1.