Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.19/4563
Título: Analysis of some chemical components, phenolic compounds and antioxidant activity in physalis
Autor: Correia, Paula
Guiné, Raquel
Gonçalves, Fernando
Oliveira, Solange
Palavras-chave: Physalis peruviana
Extraction
Phenolic compounds
Antioxidant activity
Data: Abr-2017
Citação: Correia, P., Guiné, R. P. F., Gonçalves, F. & Oliveira, S. (2017). Analysis of some chemical components, phenolic compounds and antioxidant activity in physalis. In Evita Straumite (Ed.), "Abstract Book Procedings of 11th Baltic Conference on Food Science and Technology "FOODBALT 2017", Jelgava, Latvia, pp. 42.
Resumo: Physalis peruviana L. is appreciated for its organoleptic characteristics, besides being rich in many beneficial compounds. Because its characteristics are yet not fully understood, the present work aimed at studying some of its chemical properties and bioactive phenols and the corresponding antioxidant activity. For obtaining the phenolic extracts three methods with different combinations of extracting solvents were essayed and the evaluation of total phenols, ortho-diphenols, flavonoids and antioxidant activity by DPPH and ABTS were done following established methodologies. The results showed that P. peruviana had important amounts of fibre, vitamin C and carotenoids. Regarding the methods for extraction of phenolic compounds, the most efficient were those in which a combination of the solutions methanol:water and acetone:methanol were used. The phenolic compounds contents were quantified as being p to 59.9 mg GAE/100 g, flavonoids up to 0.340 mg QE/100 g and ortho-diphenols up to 94.6 mg GAE/100 g. The antioxidant activity ranged between 7.7 and 9.6 µmol TE/g for method DPPH and between 12.3 and 13.7 µmol TE/g for method ABTS.
Peer review: yes
URI: http://hdl.handle.net/10400.19/4563
ISSN: 2501-0190
Aparece nas colecções:ESAV - DIA - Documentos de congressos (comunicações, posters, actas)

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