추천 제품
생물학적 소스
bacterial (Bacillus amyloliquefaciens)
Quality Level
유형
Type II-A
분석
≥30%
양식
lyophilized powder
특이 활성도
≥1,500 units/mg protein (biuret)
분자량
50-55 kDa by SDS-PAGE
기술
SDS-PAGE: suitable
solubility
H2O: soluble 0.1 mg/mL, clear, colorless
적합성
suitable for hydrolysis, synthesis of oligosaccharides and polysaccharides, and sugar modification
응용 분야
life science and biopharma
저장 온도
−20°C
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일반 설명
α-Amylase (1,4-α-d-glucan glucohydrolase), an endo-acting glucanase, is a member of the glycoside hydrolase family 13 (GH13).
α-Amylase, an extracellular enzyme, is present in many animals and plants, and also in microorganisms, such as different Bacillus species.
애플리케이션
α-Amylase from Bacillus sp. has been used:
- as a component of salivary fluid to perform artificial mastication; in luminal gastrointestinal digestion experiment
- as a standard in sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) to determine the concentration of α-Amylase
- to de-starch the alcohol insoluble residue (AIR) for non-cellulosic neutral monosaccharide analysis
생화학적/생리학적 작용
α-Amylase degrades starch into oligosaccharides such as maltose, and glucose and alpha limit dextrin. It hydrolyzes the α-(1→4) glucosidic linkages in polysaccharides of three or more α-(1→4) linked D-glucose units, without hydrolyzing the α-(1→6) bond. It participates in glucose production and is essential for energy acquisition. α-Amylases are widely known industrial enzymes used in the food, detergent, textile, fermentation, and pharmaceutical industries.
특징 및 장점
- α-Amylase from Bacillus licheniformis NCIB 6346 retains over 98% of its activity after 60 minutes at pH 6.2 and 85°C.
- Other α-Amylase maintain 100% of their activity after storage for 1 hour at 91°C.
Maintains >98% of activity after 60 minutes at pH 6.2 at 85 °C.
단위 정의
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 6.9 at 20 °C.
제조 메모
4× crystallized
Dissolves in water to form a clear, colorless solution at 0.1 mg/mL concentration.
기타 정보
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
This product is for R&D use only, not for drug, household, or other uses. Please consult the Safety Data Sheet for information regarding hazards and safe handling practices.
신호어
Danger
유해 및 위험 성명서
예방조치 성명서
Hazard Classifications
Resp. Sens. 1
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
개인 보호 장비
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
가장 최신 버전 중 하나를 선택하세요:
시험 성적서(COA)
Lot/Batch Number
이미 열람한 고객
Immobilized Enzymes on Gold Nanoparticles: From Enhanced Stability to Cleaning of Heritage Textiles.
Francesca Gherardi et al.
ACS applied bio materials, 2(11), 5136-5143 (2019-11-18)
Enzyme-based treatments are used in heritage conservation for the effective removal of glues and other damaging organic layers from the surfaces of historic and artistic works. Despite their potential, however, the application of enzymatic treatments is currently limited because of
Vincent T Calabrese et al.
Biotechnology progress, 32(5), 1271-1275 (2016-10-23)
A number of years ago we reported a two-step inactivation mechanism for α-amylase (enzyme) on the basis of theoretical and experimental studies in aqueous solutions. In the first step the metal (Ca2+ ) ion dissociates reversibly from the enzyme followed
Andrzej T Lulko et al.
Applied and environmental microbiology, 73(16), 5354-5362 (2007-06-26)
Transcriptome analysis was used to investigate the global stress response of the gram-positive bacterium Bacillus subtilis caused by overproduction of the well-secreted AmyQ alpha-amylase from Bacillus amyloliquefaciens. Analyses of the control and overproducing strains were carried out at the end
Sun-Li Chong et al.
Analytical and bioanalytical chemistry, 401(9), 2995-3009 (2011-09-10)
The atmospheric pressure matrix-assisted laser desorption/ionization with ion trap mass spectrometry (AP-MALDI-ITMS) was investigated for its ability to analyse plant-derived oligosaccharides. The AP-MALDI-ITMS was able to detect xylooligosaccharides (XOS) with chain length of up to ten xylopyranosyl residues. Though the
Magdalena Eder et al.
Journal of phycology, 44(5), 1221-1234 (2008-10-01)
The cell wall of the green alga Micrasterias denticulata Bréb. ex Ralfs (Desmidiaceae, Zygnematophyceae, Streptophyta) was investigated to obtain information on the composition of component polysaccharides and proteoglycans to allow comparison with higher plants and to understand cell wall functions
프로토콜
Follow our procedure for the determination of alpha-Amylase activity. This enzymatic assay of a-Amylase guides you through the entire process and necessary calculations.
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