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Article

Phenolic Profiles, Antioxidant Capacities, and Inhibitory Effects on Digestive Enzymes of Different Kiwifruits

College of Food Science, Sichuan Agricultural University, Ya’an 625014, Sichuan, China
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Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Margarida Castell Escuer and Mariona Camps-Bossacoma
Molecules 2018, 23(11), 2957; https://doi.org/10.3390/molecules23112957
Received: 11 October 2018 / Revised: 9 November 2018 / Accepted: 9 November 2018 / Published: 13 November 2018
(This article belongs to the Special Issue Natural Polyphenols and Health)
In order to obtain high-quality kiwifruits with health-promoting characteristics, physicochemical properties, phenolic profiles, antioxidant capacities, and inhibitory effects on digestive enzymes (pancreatic lipase and α-glucosidase), of fourteen different types of kiwifruit obtained from China were systematically investigated and compared. Noticeable variations in the fruits’ physicochemical properties and phenolic profiles were observed among them. The total phenolic content of Actinidia chinensis cv. Hongshi, A. chinensis cv. Jinshi, and A. chinensis cv. Jinlong were 16.52 ± 0.26 mg GAE/g DW (dry weight), 13.38 ± 0.20 mg GAE/g DW, and 11.02 ± 0.05 mg GAE/g DW, respectively, which were much higher than those of the other tested kiwifruits. According to high performance liquid chromatography (HPLC) analysis, phenolic compounds, including procyanidin B1, procyanidin B2, (−)-epicatechin, chlorogenic acid, gallic acid, and quercetin-3-rhamnoside, were found to be the major compounds in kiwifruits, while procyanidin B1, procyanidin B2, and chlorogenic acid were the most abundant phenolic compounds. Furthermore, all the tested kiwifruits exerted remarkable antioxidant capacities and inhibitory effects on pancreatic lipase and α-glucosidase. Indeed, A. chinensis cv. Hongshi, Actinidia chinensis cv. Jinshi, and Actinidia chinensis cv. Jinlong exhibited much better antioxidant capacities and inhibitory effects on digestive enzymes than those of the other tested kiwifruits. Particularly, A. polygama showed the highest inhibitory activity on α-glucosidase. Therefore, Actinidia chinensis cv. Hongshi, Actinidia chinensis cv. Jinshi, and Actinidia chinensis cv. Jinlong, as well as A. polygama could be important dietary sources of natural antioxidants and natural inhibitors against pancreatic lipase and α-glucosidase, which is helpful for meeting the growing demand for high-quality kiwifruits with health-promoting characteristics in China. View Full-Text
Keywords: kiwifruit; phenolic compounds; HPLC analysis; antioxidant capacity; enzyme inhibition kiwifruit; phenolic compounds; HPLC analysis; antioxidant capacity; enzyme inhibition
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MDPI and ACS Style

Li, H.-Y.; Yuan, Q.; Yang, Y.-L.; Han, Q.-H.; He, J.-L.; Zhao, L.; Zhang, Q.; Liu, S.-X.; Lin, D.-R.; Wu, D.-T.; Qin, W. Phenolic Profiles, Antioxidant Capacities, and Inhibitory Effects on Digestive Enzymes of Different Kiwifruits. Molecules 2018, 23, 2957. https://doi.org/10.3390/molecules23112957

AMA Style

Li H-Y, Yuan Q, Yang Y-L, Han Q-H, He J-L, Zhao L, Zhang Q, Liu S-X, Lin D-R, Wu D-T, Qin W. Phenolic Profiles, Antioxidant Capacities, and Inhibitory Effects on Digestive Enzymes of Different Kiwifruits. Molecules. 2018; 23(11):2957. https://doi.org/10.3390/molecules23112957

Chicago/Turabian Style

Li, Hong-Yi, Qin Yuan, Yu-Ling Yang, Qiao-Hong Han, Jing-Liu He, Li Zhao, Qing Zhang, Shu-Xiang Liu, De-Rong Lin, Ding-Tao Wu, and Wen Qin. 2018. "Phenolic Profiles, Antioxidant Capacities, and Inhibitory Effects on Digestive Enzymes of Different Kiwifruits" Molecules 23, no. 11: 2957. https://doi.org/10.3390/molecules23112957

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