Beta葡聚糖酶[麦芽和微生物]检测试剂盒

Beta葡聚糖酶[麦芽和微生物]检测试剂盒

英文名:β-Glucanase Assay Kit (Malt and Microbial)

货号:K-MBGL

规格:100 assays per kit

     β-葡聚糖酶作用方式不同,可分为内切型和外切型。前者存在于谷物种子、某些真菌和某些细菌中,能催化水解谷物细胞壁中的β-葡聚糖,其中包括内切型β-1,4-葡聚糖酶、内切型β-1,3-葡聚糖酶。后者存在于谷物种子中,其中又包括外切型β-1,4-葡聚糖酶、外切型β-1,3-葡聚糖酶。
在工业上采用细菌(如枯草芽孢杆菌)、曲霉(如黑曲霉)、青霉(如伊氏青霉)生产。在啤酒生产原料大麦及其麦芽中,含本品较多。在啤酒生产中采用β-葡聚糖酶,可提高麦汁的过滤速度和得率,从而保证啤酒质量。也可用于饴糖、麦芽糖浆生产和用作饲料添加剂。

β-Glucanase (Malt and Microbial) Assay Kit is suitable for the measurement and analysis of malt and bacterial β-glucanase and endo-1,4-β-glucanase.
Colourimetric method for the determination of β-Glucanase
in malt, foodstuffs and fermentation products
Principle:
(β-glucanase)
(1) Azo-Barley β-glucan (polymer) → Azo-barley β-glucan
(fragments)

(2) Add alcohol; centrifuge to remove polymeric Azo-barley
β-glucan

(3) Measure the absorbance of the supernatant solution
Kit size: 100 assays
Method: Spectrophotometric at 590 nm
Reaction time: ~ 30 min
Detection limit: 100 U/kg of malt
Application examples:
Malt extracts, wort, beer and other materials
Method recognition:
RACI (Standard Method)
Advantages

  • Very cost effective
  • All reagents stable for > 2 years during use
  • Only kit available
  • Very specific
  • Simple format
  • Standard included