B5144
Bromelain from pineapple stem
≥4 units/mg protein, (chromatography purified)
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About This Item
CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
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form
lyophilized powder
Quality Level
specific activity
(chromatography purified)
≥4 units/mg protein
composition
Protein, 30-50% biuret
solubility
H2O: soluble 1.0 mg/mL, clear, colorless
storage temp.
−20°C
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Application
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 .
Biochem/physiol Actions
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.
Unit Definition
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.
Physical form
Lyophilized powder containing mannitol and potassium phosphate buffer salts
Preparation Note
Chromatographically purified
Chromatographically purified. Dissolves in water at 1 mg/mL concentration to form a clear, colorless solution.
inhibitor
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Description
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substrate
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Description
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signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Customers Also Viewed
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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