GB 29982-2013Food additive -- Caprolactone (English PDF)

2.1 Chemical Name

Formula 2.2

C6H10O2

2.3 Formula

2.4 Relative molecular mass

114.14 (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 Colorless to pale yellow color of the sample was placed inside color than the tube, were visually observed Liquid state Butter aroma, fruity, coconut 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 delta- caprolactone content, w /% >= 98.0 Appendix A Acid value (in dollars KOH)/(mg/g) <= 5.0 GB/T 14455.5 Refractive index (20 °C) 1.449 ~ 1.453 GB/T 14454.4 the relative density (25 °C/25 °C) 1.036 ~ 1.050 GB/T 11540 Appendix A Caprolactone content was measured delta-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 delta- caprolactone gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additives delta- caprolactone gas chromatogram (Area normalization method) B.1 food additives delta- caprolactone gas chromatogram

Figure B.1.

Figure B.1 food additives delta- caprolactone gas chromatogram

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

B.2.2 stationary phase. 5% phenyl methyl polysiloxane.

B.2.3 film thickness. 0.25 µm.

B.2.4 chromatography oven temperature. linear temperature program from 120 °C ~ 190 °C, the rate of 5 °C/min; then linear temperature program from 190 °C ~ 250 °C, rate of 10 °C/min; and finally at 250 °C with 10 min.

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. 25 mL/mim.

B.2.10 Injection volume. 0.2 µL.

B.2.11 split ratio. 100︰1.