期刊
FOOD CHEMISTRY
卷 109, 期 4, 页码 883-890出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2008.01.021
关键词
HPLC-PDA; quantitative analysis; Myrtaceae; myrciaria; Eugenia; Syzygium; antioxidant; flavonoid; anthocyanin; Folin-Ciocalteu; DPPH; polyphenolic
资金
- NCCIH NIH HHS [F31 AT000801-01, F31 AT000801] Funding Source: Medline
- NIGMS NIH HHS [S06 GM008225] Funding Source: Medline
Many species of Myrtaceae are cultivated in home gardens throughout the tropics for their edible fruit, and have been used in traditional medicine to treat several inflammatory conditions. Fruit phenolics are important dietary antioxidant and anti-inflammatory constituents. We have investigated the antiradical activity, total phenolic content (TPC), and total anthocyanin content (TAC) of 14 underutilized Myrtaceae fruits, namely Eugenia aggregata, E. brasiliensis, E. luschnathiana, E. reinwardtiana, Myreiaria cauliflora, M. dubia, M. vexator, Syzygium cumini, S. curranii, S. jambos, S. javanicum, S. malaccense, S. samarangense, and S. samarangense var. Taiwan pink. An HPLC-PDA method was developed to quantify the amounts of cyanidin 3-glucoside (1), delphinidin 3-glucoside (2), ellagic acid (3), kaempferol (4), myricetin (5), quercetin (6), quercitrin (7), and rutin (8) present in MeOH extracts of the fruit. TPC ranged from 3.57 to 101 mg/g, TAC ranged from undetectable to 12.1 mg/g, and antiradical activity, measured as DPPH IC50, ranged from very active (19.4 mu g/ml) to inactive (389 mu g/ml). (C) 2008 Elsevier Ltd. All rights reserved.
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