Glucosides from the unripe fruit juice of Carica papaya Linn. (Caricaceae) cultivar ‘Red Lady’ with antioxidant activity
| Autor: | Allan Patrick G. Macabeo, Ma. Alicia M. Aguinaldo, Mary Grace M. Galang, Minoru Isobe, Wei-Chung Chang |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Isopropyl 5-β-D-glucopyranosyloxy-2-hydroxybenzoate and methyl β-D-glucopyranoside Antioxidant DPPH medicine.medical_treatment Medicine (miscellaneous) 01 natural sciences Caricaceae 03 medical and health sciences chemistry.chemical_compound DPPH radical medicine Organic chemistry TX341-641 Food science Scavenging Nutrition and Dietetics biology Carica papaya Nutrition. Foods and food supply 010405 organic chemistry biology.organism_classification Ascorbic acid Red Lady papaya cultivar 0104 chemical sciences 030104 developmental biology chemistry Hydroxyl radical Carica Isopropyl Food Science |
| Zdroj: | Journal of Functional Foods, Vol 22, Iss, Pp 358-362 (2016) |
| ISSN: | 1756-4646 |
| DOI: | 10.1016/j.jff.2016.01.024 |
| Popis: | Natural antioxidants from Carica papaya (‘Red Lady’ cultivar) were investigated. Reversed phase chromatography of the fruit juice gave 12 fractions that were subjected to DPPH and hydroxyl radical scavenging assays. Purification of Cp7 afforded isopropyl 5-β-D-glucopyranosyloxy-2-hydroxybenzoate (1) while the methanol fractions Cp8–10 afforded methyl β-D-glucopyranoside (2). This is the first report on the isolation of these compounds from C.papaya. Compound (1) showed significant DPPH radical scavenging capacity. Compound (2) was an isolate giving 77% DPPH and 81% hydroxyl radical scavenging activities, which are close or equal to the values for the standard ascorbic acid (98% DPPH and 81% hydroxyl radical scavenging activities). |
| Databáze: | OpenAIRE |
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