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Trypsin Inhibitors From Cajanus Cajan and Phaseolus Limensis Possess Antioxidant, Anti-Inflammatory, and Antibacterial Activity

Trypsin Inhibitors From Cajanus Cajan and Phaseolus Limensis Possess Antioxidant, Anti-Inflammatory, and Antibacterial Activity

Tooba Naz Shamsi, Romana Parveen, Sumbul Afreen, Mudasser Azam, Priyankar Sen, Yamini Sharma, Qazi Mohd Rizwanul Haque, Tasneem Fatma, Nikhat Manzoor, Sadaf Fatima

J Diet Suppl. 2018 Nov 2;15(6):939-950.

PMID: 29345972

Abstract:

Protease inhibitors are one of the most promising and investigated subjects for their role in pharmacognostic and pharmacological studies. This study aimed to investigate antioxidant, anti-inflammatory, and antimicrobial activities of trypsin inhibitors (TIs) from two plant sources (Cajanus cajan and Phaseolus limensis). TI was purified from C. cajan (PUSA-992) by ammonium sulfate precipitation followed by ion exchange chromatography. TI from Phaseolus limensis (lima bean trypsin inhibitor; LBTI) was procured from Sigma-Aldrich, St. Louis, Missouri, United States. The antioxidant activity was analyzed by ferric ion reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). The anti-inflammatory property of TIs was determined by inhibition of albumin denaturation assay. Ascorbic acid and aspirin were used as standards for antioxidant and anti-inflammatory assays, respectively. These TIs were tested against various bacterial and fungal strains. The TIs showed DPPH radical-scavenging activity in a concentration-dependent manner with IC50 values comparable to ascorbic acid. The FRAP values were also observed comparable to ascorbic acid and followed the trend of dose-dependent manner. The half maximal inhibitory concentration (IC50) values of CCTI and LBTI in anti-inflammatory test showed that LBTI is more potent than CCTI. The TIs showed potent antibacterial activity, but apparently no action against fungi. This study has reported the biological properties of CCTI and LBTI for the first time. The results show that TIs possess the ability to inhibit diseases caused by oxidative stress, inflammation, and bacterial infestation.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9035818-C	Trypsin inhibitor from Phaseolus limensis (lima bean)		9035-81-8	Price

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