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Abstract Title:

In Vitro Antioxidant Activities of Phenols and Oleanolic Acid from Mango Peel and Their Cytotoxic Effect on A549 Cell Line.

Abstract Source:

Molecules. 2018 Jun 8 ;23(6). Epub 2018 Jun 8. PMID: 29890672

Abstract Author(s):

Xuelian Bai, Tongfei Lai, Ting Zhou, Yicong Li, Xiuting Li, Huawei Zhang

Article Affiliation:

Xuelian Bai

Abstract:

Mango peel, the main by-product of juice processing, possesses appreciable quantities of bioactive phenolic compounds and is worthy of further utilization. The present work reports for the first time the HPLC analysis and in vitro antioxidant evaluation of mango peel phenols (MPPs) and their cytotoxic effect on the A549 lung cancer cell line. These results indicated that mango peel has the total phenolic content of 723.2± 0.93 mg·kgdry mango peel (DMP), which consisted mainly of vanillic aldehyde, caffeic acid, chlorogenic acid, gallic acid, procyanidin B₂ and oleanolic acid. Antioxidant assays showed that MPPs had strong antioxidant activities, with 92 ± 4.2% of DPPH radical scavenging rate, 79 ± 2.5% of ABTS radical inhibition rate and 4.7 ± 0.5μM Trolox equivalents per kgDMP of ferric reducing power. Gallic acid possess a stronger antioxidant capacity than other phenols. In vitro cytotoxic tests suggested that mango peel extract (MPE) had an ICvalue of 15 mg·mLand MPPs had a stronger inhibitory effect on the A549 cell line. Oleanolic acid exhibited the strongest cytotoxicity, with an ICvalue of 4.7μM, which was similar with that of the positive control 5-fluorouracil.

Study Type : In Vitro Study

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