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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Antioxidant and antimicrobial properties of phenolic rich fraction of Seabuckthorn (Hippophae rhamnoides L.) leaves in vitro.

Abstract Source:

Food Chem. 2013 Dec 15 ;141(4):3443-50. Epub 2013 Jun 22. PMID: 23993505

Abstract Author(s):

M S Yogendra Kumar, R J Tirpude, D T Maheshwari, Anju Bansal, Ksipra Misra

Article Affiliation:

M S Yogendra Kumar

Abstract:

Phenolic rich fraction (PRF) from Seabuckthorn leaves was prepared by sequential fractionation. Total phenolic content of PRF estimated as gallic acid equivalent was found to be 319.33±7.02 mg/g of PRF. Its major constituents gallic acid, rutin, quercetin-3-galactoside, quercetin-3-glucoside, myricetin, quercetin, kaempferol and isorhamnetin, were found in the range of 1.551-196.89 mg/g of PRF as determined by RP-HPLC. Antioxidant activity of PRF evaluated using 2,2-diphenyl-2-picrylhydrazyl, superoxide and nitric oxide scavenging assays. Reducing power of PRF increased with increasing amount of PRF; the equation of reducing power (y) and amount of PRF (x) was y=8.004x (r(2)=0.99), indicating that reducing ability correlated well with amount of PRF. Antibacterial activityof PRF, tested against certain medically important bacterial species showed growth inhibiting effect against Escherichia coli, Salmonella typhi, Shigella dysenteriae, Streptococcus pneumoniae and Staphylococcus aureus. In conclusion, PRF has potent antioxidant and broad spectrum antibacterial properties.

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Depression: 21st Century Solutions + The Dark Side of Wheat

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