Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/12035
Título: Expanding current knowledge on chemical composition and antioxidant activity of the Genus Lactarius
Autor: Vieira, Vanessa
Barros, Lillian
Martins, Anabela
Ferreira, Isabel C.F.R.
Palavras-chave: Lactarius citriolens
Lactarius turpis
Wild mushrooms
Chemical composition
Antioxidant activity
Data: 2014
Citação: Vieira, Vanessa; Barros, Lillian; Martins, Anabela; Ferreira, Isabel C.F.R. (2014) - Expanding current knowledge on chemical composition and antioxidant activity of the Genus Lactarius. Molecules. ISSN 1420-3049. 19:12, p. 20650-20663
Resumo: Despite the presence of toxic compounds in inedible mushrooms, the question whether the chemical nutrients and non-nutrients compositions in edible and inedible Lactarius species are similar remains unanswered. To answer this question, Lactarius citriolens Pouzar and Lactarius turpis (Weinm.) Fr., two inedible species, were studied in order to obtain information about their chemical composition and bioactivity. Free sugars, fatty acids, tocopherols, organic and phenolic acids were analysed by chromatographic techniques coupled to different detectors. L. citriolens and L. turpis methanolic extracts were tested regarding antioxidant potential (reducing power, radical scavenging activity and lipid peroxidation inhibition). The composition of macronutrients varied among the two species, but the profiles were similar between them and among other Lactarius species; L. citriolens gave the highest energy contribution, saturated fatty acids and organic acids, while the L. turpis sample was richer in free sugars, mono- and polyunsaturated fatty acids, tocopherols and phenolic compounds. L. turpis methanolic extract showed the highest antioxidant activity. The absence of hepatoxicity of the methanolic extracts was confirmed in porcine liver primary cells (in vitro conditions). The present study provided new information about wild L. citriolens and L. turpis, comparing their chemical composition and antioxidant properties with other Lactarius species, and expanding the knowledge about this genus.
Peer review: yes
URI: http://hdl.handle.net/10198/12035
DOI: 10.3390/molecules191220650
ISSN: 1420-3049
Aparece nas colecções:CIMO - Artigos em Revistas Indexados à WoS/Scopus

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