品牌:PY
起订:1瓶
发货:3天内
发送询价
乳果糖 含量: 98.0% 规格：100mg
中文名称:乳果糖
中文别名:4-O-β-D-吡喃半乳糖基-D-果糖;乳酮糖;半乳醣甙果糖
英文名称:Lactulose
CAS：4618-18-2
分子式:C12H22O11
分子量:342.30
EINECS编号:225-027-7
乳果糖检测用相关酶
PY500120 β-D-半乳糖苷酶Beta-galactosidase（GAL） CAS：9031-11-2
活性：>400u/mg 规格：1ku
PY500061 葡萄糖氧化酶 Glucose Oxidase（GOD）CAS：9001-37-0
活性：>300u/mg 规格：100ku
过氧化氢酶2万U/MG
PY500330 己糖激酶Hexokinase（HK）CAS：9001-51-8
活性：>500u/mg 规格：10KU
PY500130葡萄糖-6-磷酸脱氢酶lucose-6-phosphate dehydrogenase（G6PD）
CAS：9001-40-5 活性：>500U/mg 规格：10ku
PY10551 磷酸葡萄糖异构酶来源于酵母Phosphoglucose Isomerase from baker's yeast CAS：9001-41-6
Type III, ammonium sulfate suspension, ≥400 units/mg protein 规格：1ku；5ku
PY10950 5-腺苷三磷酸二钠盐 5'-ATP 2Na（ATP）CAS：987-65-5
含量：>98.0% 规格：5g；10g；25g
PY11235 β-烟酰胺腺嘌呤二核苷酸磷二钠β-Nicotinamide adenine dinucleotide phosohate disodium salt trihydrate（β-NADP；NADP）
CAS：24292-60-2 含量：>98.0% 规格：100mg；1g；5g
上海普誉科贸有限公司乳果糖检测试剂盒Lactulose Assay Kit：50次
The Lactulose Assay Kit is suitable for the specific, rapid and sensitive measurement and analysis of lactulose in milk and milk-based samples. Reagents included in this kit may also be prepared for use in the procedure described by ISO Method 11285:2004.
UV-method for the determination of Lactulose in milk and
foodstuffs containing dairy products
Principle:
(β-galactosidase)
(1) Lactulose + H2O → D-galactose + D-fructose
(glucose oxidase + catalase + H2O2)
(2) D-Glucose + H2O + O2 → D-gluconic acid + H2O2
(hexokinase)
(3) D-Fructose + ATP → F-6-P + ADP
(phosphoglucose isomerase)
(4) F-6-P → G-6-P
(glucose-6-phosphate dehydrogenase)
(5) G-6-P + NADP+ → gluconate-6-phosphate + NADPH + H+
(gluconate-6-phosphate dehydrogenase)
(6) Gluconate-6-phosphate + NADP+ → ribulose-5-phosphate + NADPH
+ CO2 + H+
foodstuffs containing dairy products
Principle:
(β-galactosidase)
(1) Lactulose + H2O → D-galactose + D-fructose
(glucose oxidase + catalase + H2O2)
(2) D-Glucose + H2O + O2 → D-gluconic acid + H2O2
(hexokinase)
(3) D-Fructose + ATP → F-6-P + ADP
(phosphoglucose isomerase)
(4) F-6-P → G-6-P
(glucose-6-phosphate dehydrogenase)
(5) G-6-P + NADP+ → gluconate-6-phosphate + NADPH + H+
(gluconate-6-phosphate dehydrogenase)
(6) Gluconate-6-phosphate + NADP+ → ribulose-5-phosphate + NADPH
+ CO2 + H+
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