First report on isolation of 2, 3, 4-trihydroxy-5-methylacetophenone from palmyra palm (Borassus flabellifer Linn.) syrup, its antioxidant and antimicrobial properties. (1st August 2017)

• Record Type: Journal Article
• Authors: Reshma, M.V.; Jacob, Jubi; Syamnath, V.L.; Habeeba, V.P.; Dileep Kumar, B.S.; Lankalapalli, Ravi S.
• Is Part Of: Food chemistry. Volume 228(2017)
• Page Start: 491
• Page End: 496
• Publication Date: 2017-08-01
• Subjects: Palmyra palm syrup -- 2, 3, 4-Trihydroxy-5-methylacetophenone -- Polyphenol -- Antioxidant activity -- Antibacterial activity; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2017.02.043
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: First report on 2, 3, 4-trihydroxy-5-methylacetophenone (1 ), nicotinamide (2 ), and uracil (3 ) in palmyra palm syrup. Total phenolic content and total flavonoid content of palymyra palm syrup. DPPH radical scavenging activity of compound1 . Broad spectrum antibacterial property of compound1 . Abstract: The first report on isolation and characterization of 2, 3, 4-trihydroxy-5-methylacetophenone (1 ), nicotinamide (2 ), and uracil (3 ) from palmyra palm syrup is described. Total phenolic content (TPC) and Total flavonoid content (TFC) of palm syrup were 244.70 ± 5.77 (mg gallic acid/kg of syrup) and 658.45 ± 27.86 (mg quercetin/kg of syrup), respectively. Compound1 exhibited DPPH radical scavenging activity with an IC50 value of 20.02 ± 0.14 μM which was better than ascorbic acid (IC50 = 22.59 ± 0.30 μM). Compound1 also showed broad spectrum antibacterial activity against Escherichia coli, Mycobacterium smegmatis, Staphylococcus aureus and Staphylococcus simulans .