期刊
PLANTS-BASEL
卷 11, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/plants11243517
关键词
American cranberry; Vaccinium macrocarpon; procyanidins; optimization; response surface methodology; antioxidants; press residues; valorization
资金
- project Strengthening of the capacity of doctoral studies at the University of Latvia
- [8.2.2.0/20/I/006]
Procyanidins are a group of polyphenolic compounds that can be found in foods such as chocolate, tea, and cranberries. Cranberry press residues are rich in procyanidins, which can be extracted and used as nutraceuticals. This study optimized the extraction process of cranberry press residues and purified the extracts. The obtained procyanidin fractions showed strong antioxidative potential and were analyzed for individual procyanidins. The results showed a strong correlation between procyanidin content and antioxidative activity.
Procyanidins are a polyphenolic group that can be found in a variety of foods such as chocolate, tea, cranberries and others. Type A procyanidins can be found in a handful of sources and one of the richest sources are American cranberries. These compounds possess antioxidative, anticancer and anti-inflammatory activities and are most widely used as prevention for urinary tract infections. Cranberries are utilized for jam and juice production, and the latter produces industrial food waste press residues. Press residues contain free and bound procyanidins which can be extracted for use as nutraceuticals. In this study, the extraction of cranberry press residues has been optimized using RSM and the resulting extracts have been purified and fractionated. The obtained procyanidin fractions have been investigated for their antioxidative potential and analyzed using LC-ESI-FTICR-HRMS to determine individual procyanidins. The optimization showed that the optimal extraction can be conducted using acetone in a concentration of 53% without the addition of an acidifying agent. Strong correlation was observed for procyanidin contents and their antioxidative activity using DPPH, ABTS and FRAP methods. The purified fractions contained 78 individual (65 Type A) procyanidins with the degree of polymerization of up to 9.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据