Digestive Enzymes2007
A pepsin-resistant 20 kDa protein found in red kidney bean (Phaseolus vulgaris L.) identified as basic subunit of legumin.
Bioscience, biotechnology, and biochemistry
confidence
Key findings
A 20-kDa pepsin-resistant legumin basic subunit identified; rigid disulfide bonds may confer resistance; no clinical/biological endpoints.
View source on PubMed (PMID 17151447) ↗
- Population
- In vitro red kidney bean (Phaseolus vulgaris L.) protein digestion
- Blinding
- not_reported
- Controls
- none
- Drug class
- digestive enzyme blend
Full abstract
The digestibility of proteins in red kidney bean (Phaseolus vulgaris L.) was examined by in vitro pepsin assay. A 20-kDa polypeptide that remained highly stable after heat processing was identified as a basic subunit of legumin. The results of a monobromobimane (mBBr) labeling test implied that this protein contained rigid intramolecular disulfide bonds, which might contribute to pepsin resistance.