期刊
PLANTS-BASEL
卷 11, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/plants11020147
关键词
Actinidia kolomikta; antioxidant activity; berries; cultivar; phenolic compounds; UHPLC-ESI-MS; MS
资金
- Institute of the Pharmaceutical Technologies of the Lithuanian University of Health Sciences for the opportunity to conduct the research
The research found that berries and leaves of Actinidia kolomikta contain various phenolic compounds and their antioxidant activity is cultivar-dependent. The highest total content of phenolic compounds was found in the leaves of the cultivar 'Aromatnaja' and in the berries of the cultivar 'VIR-2'.
Berries of Actinidia kolomikta (A. kolomikta) are known for high ascorbic acid content, but the diversity of phenolic compounds has been little studied. The present research aimed to investigate phenolic compounds and antioxidant activity in berries and leaves of twelve A. kolomikta cultivars. The UHPLC-ESI-MS/MS technique was used to determine differences among cultivars in the quantitative composition of individual phenolic compounds. Antioxidant activity was determined by DPPH center dot free radical scavenging and CUPRAC methods. In the present study, 13 phenolic compounds were detected in berries, whereas leaves contained 17 phenolic compounds. Flavonols were the primary class found in both berries and leaves; other identified phenolic compounds were flavan-3-ols, flavones and, phenolic acids; and dihydrochalcone phloridzin was identified in the leaves. The amount and variety of phenolic compounds in berries and leaves and antioxidant activity were found to be cultivar-dependent. The highest total content of phenolic compounds was found in the leaves of the cultivar 'Aromatnaja' and in the berries of the cultivar 'VIR-2'. Results of this study have confirmed that berries and leaves of A. kolomikta could be a valuable raw material for both food and pharmaceutical industries.
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