GB 29956-2013Food additive -- Damascone (English PDF)

2.1 Chemical Name

1- (2,6,6-trimethyl-3-cyclohexene-yl) -2-buten-1-one Formula 2.2 C13H20O

2.3 Formula

2.4 Relative molecular mass

192.30 (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 Colorless to pale yellow color of the sample was placed inside color than the tube, were visually observed Liquid state (at a low temperature of solidification body) Fruity 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) 1 mL sample soluble in 10 mL 95% (volume fraction) ethanol GB/T 14455.3 delta- Turkic ketone content (sum of the three isomers), w /% >= 96.5 Appendix A Refractive index (20 °C) 1.485 ~ 1.502 GB/T 14454.4 the relative density (25 °C/25 °C) 0.920 ~ 0.940 GB/T 11540 Appendix A Turkic-one content measured delta-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 delta- Turkic-one gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food Additives delta- Turkic-one gas chromatogram (Area normalization method) B.1 food additives delta- Turkic-one gas chromatogram

Figure B.1.

1-- trans - cis -delta- Turkic-one;

2-- trans - trans -delta- Turkic-one;

3-- cis - trans -delta- Turkic one.

Figure B.1 food additives delta- Turkic-one 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. 5% phenyl methyl polysiloxane.

B.2.3 film thickness. 0.25 µm.

B.2.4 chromatography oven temperature. 70 °C constant temperature 2 min; then linear temperature programmed from 70 °C ~ 210 °C, the rate of 10 °C/min; and finally 210 °C heated 25 min.

B.2.5 Inlet temperature. 250 °C.

B.2.6 detector temperature. 250 °C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 carrier gas. nitrogen.

B.2.9 pre-column pressure. 69 kPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 split ratio. 100︰1.