GB 1886.205-2016National Food Safety Standard -- Food Additives -- D-Carvone (English PDF)

2.1 Chemical name

2.2 Molecular formula

C10H14O

2.3 Structural formula

2.4 Relative molecular mass

150.22 (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

The project requires a test method Colorless to pale yellow State liquid the sample was placed in a colorimetric tube and visually observed Aroma of carrots (fennel) - 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) 1 mL The sample was completely dissolved in 5 mL of 60% by volume ethanol. GB/T 14455.3 d-carvone content, w /% >= 95.0 Appendix A Refractive index (20 ° C) 1.496 ~ 1.502 GB/T 14454.4 Relative density (25 °C/25 °C) 0.955 ~ 0.960 GB/T 11540 Optical rotation (25 ° C) 50 ° to 60 ° GB/T 14454.5 Appendix A Determination of the content of carnosine 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 provisions, should meet the requirements.

Food additives d-carvone vials and operating conditions see Appendix B.

Appendix B

Food additive d - Carbocenone gas chromatogram and operating conditions (Area normalization method) B.1 Food additive d-carvone Vapor chromatogram Food additive d-carvone vial The chromatogram is shown in Figure B.1.

Figure B.1 Food additive d-carvone Vapor chromatogram

B.2 Operating conditions B.2.1 Column. capillary column, length 60m, inner diameter 0.25mm.

B.2.2 Stationary phase. Polyethylene glycol.20000.

B.2.3 Film thickness. 0.25 µm.

B.2.4 Chromatographic furnace temperature. 150 °C constant temperature.

B.2.5 Inlet temperature. 250 ° C.

B.2.6 Detector temperature. 300 ° C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 Carrier gas. nitrogen.

B.2.9 Pre-column pressure. 96 kPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 100. 1.