GB 28322-2012National food safety standards -- Food additives -- Fourteen ethyl (ethyl myristate) (English PDF)

1 Scope

This standard applies to tetraacetic acid and ethyl alcohol as raw materials prepared by the food additive ethyl myristate (ethyl myristate).

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 Color colorless to pale yellow State liquid Place the sample in a colorimetric tube Observation method Aroma of waxy incense, with iris aftertaste 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 The sample was dissolved in 1 mL of 95% by volume ethanol. GB/T 14455.3 Ethylhexanoate content, w /% >= 98.0 Appendix A Acid value (in KOH)/(mg/g) <= 1.0 GB/T 14455.5 Refractive index (20 °C) 1.434 ~ 1.438 GB/T 14454.4 Relative density (25 °C/25 °C) 0.857 ~ 0.862 GB/T 11540 Appendix A Determination of ethyl myristate 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 4-Ethyl Acetate Typical Gas Chromatography (Area Normalization) See Appendix B.

Appendix B

Food additives - Tetraic acid ethyl ester - Typical gas chromatograms (Area normalization method) B.1 Food Additive 4-Ethyl Acetate Typical Gas Chromatography A typical gas chromatogram of ethyl acrylate for the food additive is shown in Figure B.1.

Figure B.1 Typical additive for food additives, tetradecanoic acid

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

B.2.2 Stationary phase. (5% phenyl) methylpolysiloxane.

B.2.3 Film thickness. 0.25 µm.

B.2.4 chromatographic furnace temperature..200 °C constant temperature 3min, and then linear program temperature from.200 °C ~ 260 °C, the rate of 8 °C/min, and finally in the 260 °C constant temperature 18min.

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. 90 kPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 1/50.