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Molecules 2018, 23(2), 359; https://doi.org/10.3390/molecules23020359

Comparative Evaluation of Soluble and Insoluble-Bound Phenolics and Antioxidant Activity of Two Chinese Mistletoes

1
College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
2
College of Foreign Languages, Yunnan Agricultural University, Kunming 650201, China
3
Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing 100093, China
*
Authors to whom correspondence should be addressed.
Received: 31 December 2017 / Revised: 2 February 2018 / Accepted: 6 February 2018 / Published: 8 February 2018
(This article belongs to the Special Issue Extractable and Non-Extractable Antioxidants)
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Abstract

Mistletoes are used medicinally in order to treat various human illnesses. Few studies have reported on the phenolic content and antioxidant properties of Chinese mistletoes (CMs). In this work, the total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activities of soluble and insoluble-bound phenolic extracts from CMs hosted by Camellia assamica (Mast.) Chang (CMC) and Pyrus, i, f. (CMP) were compared. Phenolic compounds in CMC and CMP were identified and quantified using high-performance liquid chromatography (HPLC). The results indicated that the TPC of soluble phenolic extracts was higher than insoluble-bound phenolic counterparts in both CMC and CMP. In addition, the TPC of soluble, insoluble-bound and total phenolic fractions (9.91 ± 0.23, 4.59 ± 0.27 and 14.50 ± 0.35 μmol ferulic acid equivalents per gram (FAE/g) dry sample) extracted from CMP were higher than those extracted from CMC. The soluble phenolic extracts in CMP showed higher antioxidant activities than those in CMC. Eighteen phenolic compounds from soluble and insoluble-bound phenolic extracts from the CMs were identified and quantified by HPLC. This study indicates that CMC and CMP, especially the latter, could be sources of antioxidants in human health care. View Full-Text
Keywords: Chinese mistletoes; phenolics; phenolic contents; antioxidant activity Chinese mistletoes; phenolics; phenolic contents; antioxidant activity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, Q.; Yang, S.; Li, Y.; Xue, X.; Huang, Y.; Luo, H.; Zhang, Y.; Lu, Z. Comparative Evaluation of Soluble and Insoluble-Bound Phenolics and Antioxidant Activity of Two Chinese Mistletoes. Molecules 2018, 23, 359.

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