A7130
β-Amylase from barley
Type II-B, 20-80 units/mg protein (biuret)
Sinônimo(s):
1,4-α-D-Glucan maltohydrolase
Faça loginpara ver os preços organizacionais e de contrato
About This Item
Produtos recomendados
tipo
Type II-B
Nível de qualidade
forma
powder
atividade específica
20-80 units/mg protein (biuret)
características do produto alternativo mais ecológico
Waste Prevention
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
categoria alternativa mais ecológica
, Enabling
Condições de expedição
wet ice
temperatura de armazenamento
2-8°C
Procurando produtos similares? Visita Guia de comparação de produtos
Categorias relacionadas
Descrição geral
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency and waste prevention when used in starch ethanol research. For more information see the article in biofiles.
Aplicação
β -Amylase is used to hydrolyze α bonds of α-linked polysaccharides, such as starch and glycogen. β -Amylase, has been used in various plant studies, such as carbon starvation studies in Populus tremuloides . β -Amylase, from barley, has been used to study how pressure and temperature affect catalytic activity .
Ações bioquímicas/fisiológicas
β-Amylase hydrolyzes the α-(1,4) glucan linkages in polysaccharides of three or more α-(1,4) linked D-glucose units. Natural substrates such as starch and glycogen are broken down into glucose and maltose. Pure, crystalline β-amylase preparation consists of four isoenzymes with different isoelectric points. The enzyme polymerizes very rapidly through the sulfhydryl groups in the absence of reducing agents. p-Chloromercuribenzoate inhibits the polymerization and the enzymatic activity. The reducing agents mercaptoethanol or dithiothreitol can completely restore the activity.
Qualidade
Crude
Definição da unidade
One unit will liberate 1.0 mg of maltose from starch in 3 min at pH 4.8 at 20 °C.
Outras notas
View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
Classificações de perigo
Resp. Sens. 1
Código de classe de armazenamento
11 - Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Equipamento de proteção individual
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Certificados de análise (COA)
Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.
Já possui este produto?
Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.
Os clientes também visualizaram
Volker Heinz et al.
Biotechnology progress, 21(6), 1632-1638 (2005-12-03)
The depolymerization of starch by beta-amylase during exposure to hydrostatic pressure up to 700 MPa and within a temperature range from 20 to 70 degrees C has been investigated. Inactivation of the enzyme as well as alterations in conversion speed
Purification and characterisation of crystalline -amylase from barley.
K Visuri et al.
European journal of biochemistry, 28(4), 555-565 (1972-08-04)
Xin Li et al.
Journal of industrial microbiology & biotechnology, 38(11), 1837-1843 (2011-04-21)
A moderately halophilic strain LY9 with high amylolytic activity was isolated from soil sample obtained from Yuncheng, China. Biochemical and physiological characterization along with 16S rRNA sequence analysis placed the isolate in the genus Halobacillus. Amylase production started from the
Déborah LeCorre et al.
Biomacromolecules, 13(1), 132-137 (2011-12-03)
Starch nanocrystals (SNCs) are crystalline platelets resulting from the acid hydrolysis of starch. A limiting factor for their more widespread use is their preparation duration. Therefore, this study investigates the possibility of developing an enzymatic pretreatment of starch to reduce
Ambarish Nag et al.
BMC systems biology, 5, 94-94 (2011-06-21)
Higher plants and algae are able to fix atmospheric carbon dioxide through photosynthesis and store this fixed carbon in large quantities as starch, which can be hydrolyzed into sugars serving as feedstock for fermentation to biofuels and precursors. Rational engineering
Protocolos
Enzymatic Assay of β-AMYLASE (EC 3.2.1.2)
Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.
Entre em contato com a assistência técnica