期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 165, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2022.113774
关键词
Circular bioeconomy; Drying technology; Phenolic compounds; UHPLC-QqQ-MS; MS; Winemaking by-products
资金
- European FEADER funds
- Ministry of Agriculture and Food of Spain
- Government of La Rioja
- plusPRODUCT: By- products valorisation and development of the Circular Economy of the Agrifood Industry [23M/20]
The by-products of winemaking can be used to produce high-value ingredients through dehydration processes. The skin is rich in anthocyanins, while the seeds are an important source of hydroxybenzoic acids, procyanidins, and lignans. Regardless of the dehydration method, the stems are a rich source of a wide range of phenolic compounds.
The circular bioeconomy for the production of high-value products has gained attention due to new policies for the reuse and sustainable valorisation of locally available underutilised raw material in several countries. This study is focused to explore the potential of the by-products of winemaking through direct dehydration processes. The phenolic composition (anthocyanins and uncolored phenols) and their quantitative pattern in the skin, seeds and stems were determined by ultra-high performance liquid chromatography with tandem mass spectrometry (UHPLC-QqQ-MS/MS). The results showed that lyophilisation and mainly the Spiral Flash dryer, as the most feasible system for industrial application, could be a promising process for producing high added-value in-gredients with retention of bioactive phenolic compounds. The skin fraction is a rich source of anthocyanins. In a complementary way, the seeds are an important source of hydroxybenzoic acids, procyanidins and lignans, a family of phenolic compounds little studied in grapes and wine. Regardless of the dehydration method, the stems are an important source of a wide range of phenolic compounds, mainly proanthocyanidins. The present study established that the winemaking process provides an excellent source of raw materials for the recovery of in-gredients rich in valuable phenolic compounds, thus contributing to the circular bioeconomy.
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