GB 5009.276-2016 Translated English of Chinese Standard. GB5009.276-2016: National Food Safety Standard - Determination of Glucono Delta-Lactone in Foodshttps://www.chinesestandard.net, 7 apr 2019 - 12 pagine This Standard specifies methods for the determination of glucono delta-lactone in foods. Method 1 of this standard is applicable to the determination of glucono delta-lactone content in meat, meat products, soy products and beverages; method 2 of this standard is applicable to the determination of glucono delta-lactone content in foods. |
Sommario
| 3 | |
Application Scope | 4 |
Instruments and Apparatuses | 5 |
Analysis Steps | 6 |
Description of the Analysis Result | 7 |
Precision | 8 |
Instruments and Apparatuses | 9 |
Description of the Analysis Result | 10 |
Precision | 11 |
Appendix A Chromatogram of Glucono DeltaLactone Standard Solution | 12 |
Parole e frasi comuni
100 mL volumetric 50 mL beaker add 30 mL adenine dinucleotide phosphate adenosine triphosphate area of gluconic arithmetic mean buffer to fix-volume content of glucono cover and mix Delta-Lactone in Foods detection-limit is 0.007 determination of glucono filtrate as standby g of sample gluconic acid glucono delta-lactone standard glucono delta-lactone standard-hydrolysis high performance liquid Homogenizer Magnesium chloride measure the absorbance meat products milliliter mL of water mL volumetric flask Monopotassium phosphate monopotassium phosphate-phosphoric acid nicotinamide adenine dinucleotide peak area performance liquid chromatography Petroleum ether phosphate-phosphoric acid buffer Phosphoric acid potassium hydroxide solution put the filtrate reagents repeatability cannot exceed ribulose 5-phosphate sample accurate Sample preparation sample solution series working solution Sodium bicarbonate solution 1.0 mg/mL solution 2 mol/L solution 5.0 mg/mL solution pH standard curve standard-hydrolysis into gluconic stored at 4°C test solution unit is mL water to dissolve water to fix-volume wavelength of 365 weigh 2 g