B5144
Bromelain from pineapple stem
≥4 units/mg protein, (chromatography purified)
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About This Item
Número CAS:
Número CE:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54
Produtos recomendados
Formulário
lyophilized powder
Nível de qualidade
atividade específica
(chromatography purified)
≥4 units/mg protein
composição
Protein, 30-50% biuret
solubilidade
H2O: soluble 1.0 mg/mL, clear, colorless
temperatura de armazenamento
−20°C
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Aplicação
Bromelain from pineapple stem has been used as a positive control in sodium dodecyl sulfate (SDS) / polyacrylamide gel electrophoresis (PAGE) zymograms. It has also been used as a Azocasein substrate for the determination of proteolytic activity.
Bromelain may be used to inhibit the biosysnthesis of proinflammatory prostaglandins. It may be used to reduce clotting efficiency. Bromelain, from pineapple stem, has been used to make enzymatic hydrolysates of honeybee-collected pollen .
Ações bioquímicas/fisiológicas
Bromelain is a cysteine endopeptidase with broad specificity for cleavage of proteins. Bromelain may be from a stem or piece of fruit. Product P3169 (pGlu-Phe-Leu-p-nitroanilide) may be used as a chromogenic substrate for the assay of bromelain.
Definição da unidade
One unit will release 1.0 μmole of p-nitrophenol from N-α-Z-L-lysine p-nitrophenyl ester per min at pH 4.6 at 25 °C.
forma física
Lyophilized powder containing mannitol and potassium phosphate buffer salts
Nota de preparo
Chromatographically purified
Chromatographically purified. Dissolves in water at 1 mg/mL concentration to form a clear, colorless solution.
Inibidor
Nº do produto
Descrição
Preços
substrato
Nº do produto
Descrição
Preços
Palavra indicadora
Danger
Frases de perigo
Declarações de precaução
Classificações de perigo
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Órgãos-alvo
Respiratory system
Código de classe de armazenamento
13 - Non Combustible Solids
Classe de risco de água (WGK)
WGK 3
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
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Azocasein substrate for determination of proteolytic activity: reexamining a traditional method using bromelain samples
Coelho DF, et al.
BioMed Research International (2016)
H Umesh Hebbar et al.
Bioresource technology, 99(11), 4896-4902 (2007-10-30)
Reverse micellar systems of CTAB/isooctane/hexanol/butanol and AOT/isooctane are used for the extraction and primary purification of bromelain from crude aqueous extract of pineapple wastes (core, peel, crown and extended stem). The effect of forward as well as back extraction process
Rubab Mahmood et al.
Biochemistry. Biokhimiia, 72(3), 307-312 (2007-04-24)
Stem bromelain was covalently coupled to a thermosensitive polymer of N-isopropylacrylamide (p(NIPAm)) either through the amino groups of the enzyme (randomly coupled) or via the lone oligosaccharide chain (uniformly coupled). The enzyme coupled via the oligosaccharide chain exhibited better access
Hafeeza Khatoon et al.
Protein and peptide letters, 14(3), 233-236 (2007-03-10)
The lone oligosaccharide chain of stem bromelain was oxidized with periodic acid to generate aldehyde groups and the resulting oxidized enzyme coupled to amino-Sepharose in order to obtain an immobilized preparation with uniformly oriented enzyme. The immobilized bromelain exhibited high
Soghra Khatun Haq et al.
The international journal of biochemistry & cell biology, 37(2), 361-374 (2004-10-12)
The effect of salts and alcohols was examined on the partially folded intermediate (PFI) state of stem bromelain reported at low pH (Haq, Rasheedi, and Khan (2002) European Journal of Biochemistry 269, 47-52) by a combination of optical methods like
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