Megazyme抗性淀粉检测试剂盒

发表于由

Megazyme抗性淀粉检测试剂盒
上海金畔生物科技有限公司
品牌：Megazyme

英文名：Resistant Starch Assay Kit

货号：K-RSTAR

规格：100 assays per kit

The Resistant Starch Test kit for the measurement and analysis of resistant starch in plant materials and starch samples.

Colourimetric method for the determination of Resistant Starch
in cereal products and feeds

Principle:
(α-amylase + amyloglucosidase)
(1) Non-resistant starch + H2O → D-glucose + maltose (trace)

(2) Aqueous ethanol wash + centrifugation to remove D-glucose +
maltose

(3) Dissolution of resistant starch pellet in KOH and neutralisation

(α-amylase + amyloglucosidase)
(4) Dissolved resistant starch + H2O → D-glucose

(glucose oxidase)
(5) D-Glucose + H2O + O2 → D-gluconate + H2O2

(peroxidase)
(6) 2H2O2 + p-hydroxybenzoic acid + 4-aminoantipyrine →
quinoneimine + 4H2O

Kit size:                           100 assays
Method:                           Spectrophotometric at 510 nm
Reaction time:                  ~ 120 min (plus overnight incubation)
Detection limit:                 2-100% of sample weight
Application examples: 
Plant materials, starch samples and other materials
Method recognition:     
AOAC (Method 2002.02), AACC (Method 32-40.01) and CODEX
(Type II Method)

Advantages

  • Very cost effective
  • All reagents stable for > 2 years after preparation
  • Only enzymatic kit available
  • Measures enzyme resistant starch
  • Simple format
  • Mega-Calc™ software tool is available from our website for hassle-free raw data processing
  • Standard included

 Q1. Should the pH of the sample be adjusted even for samples in acidic media?

The pH of the assay solution after the sample is added should be the same as that of the assay buffer that is supplied with the kit.
Low sample volumes (e.g. 0.1 mL) are not likely to affect the pH of the assay solution and therefore may not require pH adjustment.
Samples above 0.1 mL are more likely to affect the pH of the assay solution and therefore the pH of these samples should be adjusted as described in the data booklet, prior to addition to the assay.

Q2. There is an issue with the performance of the kit; the results are not as expected.

If you suspect that the Megazyme test kit is not performing as expected such that expected results are not obtained please do the following:

  1. Ensure that you have tested the standard sample that is supplied with the Megazyme test kit.
  2. Send the results of the kit standard, blank samples and the results obtained for your sample, in the relevant MegaCalc spreadsheet (if available) to Megazyme (cs@megazyme.com). Where available the relevant MegaCalc spreadsheet can be downloaded from where the product appears on the Megazyme website.
  3. State the kit lot number being used (this is found on the outside of the kit box).
  4. State which assay format was used (refer to the relevant page in the kit booklet if necessary).
  5. State exact details of any modifications to the standard procedure that is provided by Megazyme.
  6. State the sample type and describe the sample preparation steps if applicable.

  • 应用范围：

  •  件

Megazyme产品所有分类：
生物及食品酶法试剂盒(Assay Kits)
膳食纤维/淀粉(Dietary Fiber/Starch) 单/双糖(Mono/Disaccharides) 多糖(Polysaccharides) 醇类(Alcohols) 有机酸(Organic Acids) 亚硫酸盐/氮(Sulfite/Nitrogen) 活性酶(Enzyme Activity) 试剂混合物(Reagent Mixtures) 其它(Other)
酶(Enzymes)
活性酶(Carbohydrate Active enZYmes )
淀粉酶(Amylases )
阿拉伯树胶酸(Arabinanases)
阿拉伯呋喃(Arabinofuranosidases)
纤维二糖水解(Cellobiohydrolases)
纤维素酶(Cellulases)
酯酶(Esterases)
果糖酶＆果糖苷酶(Fructanases & Fructosidases)
岩藻糖苷酶(Fucosidases)
半乳聚糖酶(Galactanases)
半乳糖苷酶(Galactosidases)
葡聚糖酶(Glucanases)
葡萄糖苷酶(Glucosidases)
葡糖醛酸糖苷(Glucuronidases)
已糖胺酶类(Hexosaminidiases)
裂解酶(Lyases)
甘露聚糖酶(Mannanases)
甘露糖苷酶(Mannosidases)
支链淀粉酶(Pullulanases)
唾液酸酶(Sialidases)
木聚糖酶(Xylanases)
糖苷酶(Xylosidases)
木葡聚糖酶(Xyloglucanases)
多聚半乳糖醛酸(内切)酶(Polygalacturonases)
其它酶(Other Activities)
分析酶(Analytical Enzymes)
脱氢酶(Dehydrogenases)
异构酶(Isomerases)
激酶(Kinases)
磷酸酶(Phosphatases)
蛋白酶(Proteases)
其他活性酶(Other Activities)
糖类活性酶(Glycobiology Enzymes)
酶底物( Chromogenic Substra