GB 1886.193-2016National Food Safety Standard -- Food Additives -- Ethyl Propionate (English PDF)

2.1 Chemical name

Ethyl propionate

2.2 Molecular formula

C5H10O2

2.3 Structural formula

2.4 Relative molecular mass

102.13 (according to the 2007 International Relative Atomic Quality)

3.1 Sensory requirements

Sensory requirements shall comply with the requirements of Table 1.

Table 1 sensory requirements

The project requires a test method Color and colorless State liquid the sample was placed in a colorimetric tube and visually observed Aroma aroma, rum - 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 Ethyl propionate content, w /% >= 97.0 Appendix A Acid value (in KOH)/(mg/g) <= 2.0 GB/T 14455.5 Refractive index (20 ° C) 1.383 ~ 1.385 GB/T 14454.4 Relative density (25 °C/25 °C) 0.886 ~ 0.889 GB/T 11540 Appendix A Determination of ethyl propionate 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 provisions, should meet the requirements.

Food additives Propionate gas chromatograms and operating conditions are described in Appendix B.

Appendix B

Food Additives - Ethyl Acetate Gas Chromatography and Operating Conditions (Area normalization method) B.1 Food additive Propionate Ethyl acetate Gas chromatogram Food additives Propionate Ethyl acetate Gas chromatograms are shown in Figure B.1.

Figure B.1 Food additive Propionate Ethyl acetate Gas chromatogram

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. 80 °C constant temperature.

B.2.5 Inlet temperature..200 ° 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. 50 kPa.

B.2.10 Injection volume. 0.2 µL.

B.2.11 Split ratio. 75. 1.