GB 28323-2012The food additives -- Citronellyl ester (English PDF)

1 Scope

This standard applies to acetic acid (or acetic anhydride) and citronellic acid as raw materials prepared by the food additives leucovorin acetate.

2 Chemical name, molecular formula, structural formula and relative molecular mass

3 Technical requirements

3.1 sensory requirements. should be consistent with the provisions of Table 1.

Table 1 sensory requirements

The project requires a test method Colorless to pale yellow State liquid Place the sample in a colorimetric tube Observation method Fragrance Fragrance GB/T 14454.2

3.2 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 of the sample is fully dissolved in 9 mL 70% (volume fraction) of ethanol GB/T 14455.3 Citronella acetate content, w /% >= 92.0 Appendix A Acid value (in KOH)/(mg/g) <= 1.0 GB/T 14455.5 Refractive index (20 ° C) 1.440 ~ 1.450 GB/T 14454.4 Relative density (25 °C/25 °C) 0.883 ~ 0.893 GB/T 11540 Appendix A Determination of citronella acetate content 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 implementation of the provisions.

Food Additives Acetyl Acetate Typical Gas Chromatography (Area Normalization) See Appendix B.

Appendix B

Food Additives Acetyl Acetate Typical Gas Chromatography (Area normalization method) B.1 Food Additives Acetyl Acetate Typical Gas Chromatography A typical gas chromatogram of the food additive, citronella acetate, is shown in Figure B.1.

Description.

1 --- citronella citrate;

2 --- citronellol.

Figure B.1 Typical additives for the food additive, citronella, acetic acid

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

B.2.2 Stationary phase. modified polyethylene glycol.

B.2.3 Film thickness. 0.5 µm.

B.2.4 Chromatographic furnace temperature. linear program temperature from 80 °C ~ 240 °C, the rate of 4 °C/min, and finally at 240 °C constant temperature 10min.

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 Carrier gas flow rate. about 1 mL/min.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 1/80.