Chemical composition, antioxidant activity and bioaccessibility studies in phenolic extracts of two Hericium wild edible species. Issue 1 (September 2015)

• Record Type: Journal Article
• Authors: Heleno, Sandrina A.; Barros, Lillian; Martins, Anabela; Queiroz, Maria João R.P.; Morales, Patricia; Fernández-Ruiz, Virginia; Ferreira, Isabel C.F.R.
• Is Part Of: Lebensmittel-Wissenschaft + Technologie =. Volume 63:Issue 1(2015:Sep.)
• Page Start: 475
• Page End: 481
• Publication Date: 2015-09
• Subjects: Food industry and trade -- Periodicals; Food -- Composition -- Periodicals; Microbiology -- Periodicals; Nutrition -- Periodicals; 664.005
• DOI: 10.1016/j.lwt.2015.03.040
• Languages: English
• ISSNs: 0023-6438

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">Mushrooms are rich sources of bioactive compounds such as phenolic acids. When ingested, these molecules have to be released from the matrix to be transformed/absorbed by the organism, so that they can exert their bioactivity. Several <italic>in vitro</italic> methodologies have been developed in order to evaluate the bioavailability of bioactive compounds. Herein, two <italic>Hericium</italic> species were analyzed for their chemical composition and antioxidant activity. Furthermore, an <italic>in vitro</italic> digestion of the mushrooms and mushroom phenolic extracts was performed, and the digested samples were also submitted to antioxidant activity evaluation in order to evaluate the bioaccessibility of the phenolic acids identified in the samples. <italic>Hericium</italic> species showed similar chemical profiles (except for tocopherols), varying only in the concentration of the compounds. The phenolic extracts revealed higher antioxidant activity than the <italic>in vitro</italic> digested samples, meaning that this process decrease the antioxidant properties of the extract/mushroom. Nevertheless, phenolic acids were found in the digested samples, meaning that those molecules are bioaccessible.</p> </sec> </abstract>