Food Science and Biotechnology
→ Food Science and Biotechnology 2020 ; 29(4): 449-458
Bioactive compounds and antioxidant activities of Quercus salicina Blume extract
Thinzar Aung1 • Marie Anna Dominique Bibat1 • Chang-Cheng Zhao1 • Jong-Bang Eun1
1 Department of Integrative Food, Bioscience and Biotechnology, Graduate School of Chonnam National University, Gwangju 61186, South Korea
Quercus salicina Blume (QS) is an oak species that is indigenous to Japan and Korea. Historically, extracts of leaves, stems, barks and buds from the QS tree had been extensively utilized as herbal medicines. As rich sources of natural antioxidants, QS extracts could prevent oxidative stress and the occurrence of related neurodegenerative diseases. In pharmaceutical applications, decoction or infusion of comminuted QS powder is prepared as an herbal tea for oral use. Various extraction methods and extracting mediums showed the potential antioxidant activities of QS extracts, as well as the different types and levels of bioactive compounds found in them. Due to their functional properties and possibly low-level of cytotoxicity, the potential application of QS extracts as a novel food ingredient could be considered. In this review paper, a brief overview about QS extracts and their bioactive components, antioxidant activities, toxicity and technological applications is described based on previous works.
Phenolic · Flavonoid · Antioxidant · Extract · Oak
Food Science and Biotechnology 2020 ; 29(4): 449-458