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Type: Artigo de periódico
Title: Chemical Characterization And Antioxidant Potential Of Chilean Chia Seeds And Oil (salvia Hispanica L.)
Author: Marineli R.D.S.
Moraes T.A.
Lenquiste S.A.
Godoy A.T.
Eberlin M.N.
Marostica Jr M.R.
Abstract: The objective of this study was to chemically and nutritionally characterize the commercial chia seeds and oil from Chile and investigate their antioxidant potential by different invitro methods. The chia seed presented a good source of protein (25.32g/100g), oil (30.22g/100g) and total dietary fiber (37.50g/100g), with predominant insoluble fiber (35.07g/100g). The main fatty acids, ranked order of abundance, were α-linolenic acid>linoleic acid>palmitic acid~oleic acid>stearic acid. The triacylglycerols (TAG) in chia oil were identified by direct mass spectrometry using the easy ambient sonic-spray ionization (EASI-MS) technique and linolenic acid (Ln) was present in the most TAG found. The oil also presented a low peroxide index value (2.56mEq peroxide/kg). The samples exhibited a high antioxidant activity by the various invitro methods evaluated; it is due to the presence of phenolic compounds in the seed or oil, which were, mainly, myricetin, quercetin, kaempferol, chlorogenic acid and 3,4-dihydroxyphenylethanol-elenolic acid dialdehyde (3,4-DHPEA-EDA). Our results therefore suggest that Chilean chia seeds and oil should be considered as functional ingredients with high antioxidant potential in food products with commercial applications. © 2014 Elsevier Ltd.
Editor: Academic Press
Rights: fechado
Identifier DOI: 10.1016/j.lwt.2014.04.014
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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