Phytochemical, antimicrobial, and antioxidant activities of different citrus juice concentrates

Food Science & Nutrition
Ehigbai I OikehKelly Oriakhi

Abstract

The search for new antimicrobial compounds is ongoing. Its importance cannot be overemphasized in an era of emerging resistant pathogenic organisms. This study therefore investigated the phytochemical composition and antioxidant and antimicrobial activities of different citrus juice concentrates. Fruit juices of Citrus tangerine (tangerine), Citrus paradisi (grape), Citrus limon (lemon), and Citrus aurantifolia (lime) were evaluated. Antimicrobial activities against five bacterial and three fungal strains were evaluated. The results revealed the presence of alkaloids, flavonoids, steroids, terpenoids, saponins, cardiac glycosides, and reducing sugars in all the juice concentrates. DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging capacities varied with tangerine and grape juices having better scavenging capacities than lemon and lime juices. Grape juice was observed to have a significantly higher (P < 0.05) ferric-reducing antioxidant potential (FRAP) value (364.2 ± 10.25 μmol/L Fe(II)/g of the extract) than the reference antioxidant, ascorbic acid (312.88 ± 5.61 μmol/L). Antimicrobial studies revealed differential antimicrobial activities against different microbial strains. Zones of inhibition ranging from 4 to 26 mm we...Continue Reading

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Citations

Mar 1, 2018·Journal of Food Science and Technology·Eun Hee LeeDeog-Hwan Oh
Apr 3, 2018·Journal of Food Science and Technology·Ranjana SharmaAjay Rana
May 31, 2019·Endocrine, Metabolic & Immune Disorders Drug Targets·Kazuki SantaIsao Nagaoka
Mar 15, 2020·Plants·Himashree BoraPradeep Kumar
Nov 28, 2020·Biometals : an International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine·Marwa Salah El-Deen SalemRasha Mohammad Fathy
Sep 15, 2020·Journal of Basic and Clinical Physiology and Pharmacology·Nitika SinghBechan Sharma

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Software Mentioned

Statistical Analysis System ( SPSS Statistics
SPSS

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