GB 1886.194-2016Food additive -- Ethyl butyrate (English PDF)

2.1 Chemical Name

3-methyl butyrate, butyl butyrate, butyl 2-methyl Formula 2.2 C9H18O2

2.3 Formula

Butyrate, butyl butyrate, methyl 2-methyl ester

2.4 Relative molecular mass

158.24 (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 Color colorless Liquid state the sample was placed in a cuvette, were visually observed Aroma 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.

GB 1886.195-2016

Table 2. Physical and chemical indicators

Item Index Test Method Solubility (25 °C) 1mL sample soluble in 4mL70% (volume fraction) ethanol GB/T 14455.3 Isoamyl butyrate content, w /% >= 98.0 (sum of two isomers) Appendix A Acid value (in dollars KOH)/(mg/g) <= 1.0 GB/T 14455.5 Refractive index (20 °C) 1.409 ~ 1.414 GB/T 14454.4 the relative density (25 °C/25 °C) 0.861 ~ 0.866 GB/T 11540 GB 1886.195-2016 Appendix A Determination of Isoamyl butyrate content 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 Isoamyl butyrate gas chromatograph and operating conditions, see Appendix B.

GB 1886.195-2016

Appendix B

Food Additives Isoamyl butyrate gas chromatograph and operating conditions (Area normalization method) B.1 food additives isoamyl butyrate gas chromatogram Food Additives Isoamyl butyrate gas chromatography is shown in Figure B.1.

Explanation.

1 --- 3-methylbutyl butyrate;

2 --- butyric acid methyl ester.

Figure B.1 food additives isoamyl butyrate gas chromatogram

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

B.2.2 stationary phase. 100% dimethyl polysiloxane.

B.2.3 film thickness. 0.25µm.

B.2.4 chromatography oven temperature. linear temperature programmed from 50 °C to 220 °C, the rate of 3 °C/min.

B.2.5 inlet temperature. 280 °C.

B.2.6 detector temperature. 280 °C.

B.2.7 Detector. Hydrogen flame ionization detector.

B.2.8 carrier gas. nitrogen.

Before B.2.9 column pressure. 45kPa.

B.2.10 Injection volume. 0.1µL.

B.2.11 Split ratio. 100.1.