期刊
SUSTAINABLE CHEMISTRY AND PHARMACY
卷 25, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scp.2021.100593
关键词
Actinia arguta leaves; Phenolic compounds; Subcritical water extraction; Radical scavenging capacity
资金
- FCT/MCTES [EXPL/BAA-GR/0663/2021, UIDB/50006/2020, UIDP/50006/2020]
- Portuguese Foundation for Science and Technology [5537 DRI]
- FCT -Fundacao para a Ciencia e a Tecnologia, I.P. [UIDB/50006/2020, UIDP/04378/2020, UIDB/04378/2020]
- Associate Laboratory Institute for Health and Bioeconomy -i4HB [LA/P/0140/2020]
- POPH-QREN [SFRH/BD/144994/2019]
- FCT/MCTES-CEEC Individual Program [CEECIND/02702/2017, CEECIND/01886/2020]
- European Science Foundation
- Ministerio da Ciencia, Tecnologia e Ensino Superior
This study evaluated the optimal subcritical water extraction temperature for polyphenolic compounds from Actinidia arguta leaves and found that 123℃ was the optimal temperature, resulting in high content of phenolic and flavonoid compounds with good antioxidant properties.
Actinidia arguta is a species disseminated in Europe and classified by the Chinese Herbal Medicine as a medicinal plant. The fruit (kiwiberry) has been extensively exploited for multiple purposes, while leaves where discarded. The objective of this study was to evaluate the optimal Subcritical Water Extraction (SWE) temperature (110 ? - 160 ?) of antioxidants and polyphenols from A. arguta leaves. The optimal temperature of extraction was 123 ?, revealing the highest phenolic and flavonoid contents and good scavenging efficiencies against HOCl (IC50 = 17.06 mu g/mL) and O-2(center dot-) (IC50 = 335.2 mu g/mL), without toxicity on intestinal cells. The phenolic profile was characterized by high amounts of phenolic acids (e.g., gallic acids), flavanols (catechin) and flavonols (e.g., quercetin-3-O-galactoside). This work allows to conclude that SWE can be a useful extraction technique for the recovery of polyphenolics from A. arguta leaves.
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