Path: Home > GB > Page142 > GB 29957-2013

Price & Delivery

US$189.00 · In stock · Download in 9 seconds
GB 29957-2013: Food additive -- Dihydro-ionone standards: food additives specified standards of food additives dihydro-ionone
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid

Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB 29957-2013	English	189	Add to Cart	3 days [Need to translate]	Food additive -- Dihydro-ionone standards: food additives specified standards of food additives dihydro-ionone

GB 29957-2013: Food additive -- Dihydro-ionone standards: food additives specified standards of food additives dihydro-ionone

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Food additive-Dihydro-ionone standards. food additives specified standards of food additives dihydro-ionone National Standards of People's Republic of China National Food Safety Standard Food Additives dihydro ionone -β- Issued on. 2013-11-29 2014-06-01 implementation National Food Safety Standard Food Additives dihydro ionone -β-

1 Scope

This standard applies to the β- ionone materials obtained food additive dihydro -β- ionone. 2 chemical name, molecular formula, molecular mass and structural formula 2.1 Chemical Name 4- (2,6,6-trimethyl-1-cyclohexen-yl) -3-butyl-2-one Formula 2.2 C13H22O 2.3 formula 2.4 relative molecular mass 194.32 (according to 2007 international relative atomic mass)

3 Technical requirements

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 Fruity aroma, with a woody bottom rhyme 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 Content (dihydro and tetrahydro -β- -β- ionone ionone sum), w /% ≥ 99.0 Appendix A Refractive index (20 ℃) 1.479 ~ 1.485 GB/T 14454.4 The relative density (25 ℃/25 ℃) 0.920 ~ 0.930 GB/T 11540

Appendix A

Determination dihydro-ionone content -β- 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 dihydro -β- ionone gas chromatograph (area normalization method) See Appendix B.

Appendix B

Food additives dihydro ionone gas chromatogram -β- (Area normalization method) B.1 food additives dihydro ionone -β- gas chromatogram Figure B.1. 1-- tetrahydro -β- ionone; 2-- dihydro -β- ionone. B.1 food additives dihydro ionone -β- gas chromatogram B.2 operating conditions B.2.1 Column. capillary column, length 30 m, an inner diameter of 0.25 mm. B.2.2 stationary phase. modified polyethylene glycol. B.2.3 film thickness. 0.25 μm. B.2.4 chromatography oven temperature. 120 ℃ constant temperature 2 min; then linear temperature program from 120 ℃ ~ 200 ℃, the rate of 5 ℃/min; final At 200 ℃ thermostat 5 min. B.2.5 Inlet temperature. 250 ℃. B.2.6 detector temperature. 250 ℃. B.2.7 Detector. Hydrogen flame ionization detector. B.2.8 carrier gas. nitrogen. B.2.9 pre-column pressure. 69 kPa. B.2.10 Injection volume. 0.2 μL. B.2.11 split ratio. 100︰1. ...