Antioxidant potential of selected underutilized fruit crop species grown in Sri Lanka
| Autor: | W. M. T. Madhujith, D. K. N. G. Pushpakumara, M. A. L. N. Mallawaarachchi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
antioxidant potential
total anthocyanin content total phenolic content underutilized fruits crop species vitamin c 0303 health sciences Star-gooseberry ABTS food.ingredient Phyllanthus biology 030309 nutrition & dietetics DPPH lcsh:S 04 agricultural and veterinary sciences biology.organism_classification Ascorbic acid 040401 food science lcsh:Agriculture 03 medical and health sciences chemistry.chemical_compound 0404 agricultural biotechnology food chemistry Phyllanthus emblica Pouteria campechiana Gallic acid Food science |
| Zdroj: | Tropical Agricultural Research, Vol 30, Iss 3, Pp 1-12 (2019) |
| ISSN: | 1016-1422 |
| DOI: | 10.4038/tar.v30i3.8315 |
| Popis: | Lyophilized aqueous extracts of four underutilized fruit species namely Diospyros discolor (Velvet apple), Pouteria campechiana (Lavulu/Canistel), Phylanthus acidus (Mal-Nelli/Star gooseberry) and Phyllanthus emblica (Nelli/Indian gooseberry) were investigated for the antioxidant potential (AP) by 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, 2,2-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) assay and ferrous reducing antioxidant power (FRAP) assay. Total phenolic content (TPC) and total monomeric anthocyanin content (TMAC) were determined by Folin-Ciocalteu’s colorimetric assay and pH differential method, respectively. Vitamin C (VitC) content of fresh fruit was evaluated titrimertically and expressed as mg of ascorbic acid in 100 g of fresh weight (FW). The TPC and TMAC were expressed as mg of gallic acid equivalents (GAE)/100g FW and mg of cyanodin-3-glucoside (C3G)/100g FW. The measured parameters differed significantly among four fruit species. The values ranged between 84.42 – 1939.70 mg GAE/100g FW, 10.41 – 55.64 mg C3G/100g FW, 0.067 – 310.63 mg FW/ml, 9 – 81.29%, 238.25 – 2891.57 Fe2+μmol/100g FW and 17.12 – 523.14 mg/100g FW for TPC, TMAC, IC50, RSA, FRAP and VitC, respectively. Phyllanthus emblica possessed highest values in all parameters while Phyllanthus acidus showed the lowest except in TPC. The lowest TPC was observed in Diospyros discolor. The extract of Pouteria campechiana also showed considerable amount of TPC (640 mg C3G/100g FW), RSA (76%) and VitC of 53 mg/ 100g. The results revealed that these underutilized fruit crops can be used as sources of natural antioxidants and vitamin C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|