Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/18851
Título: Effect of modified atmosphere on phytochemical profile of pasteurized peach purées
Autor: Oliveira, Ana
Coelho, Marta
Alexandre, Elisabete M. C.
Gomes, Maria Helena
Almeida, Domingos P. F.
Pintado, M. E.
Palavras-chave: Carotenoids
Prunus persica (L.)
Oxygen
Polyphenols
Nitrogen
Data: 2015
Citação: OLIVEIRA, Ana; COELHO, Marta; ALEXANDRE, Elisabete M. C.; GOMES, Maria Helena; ALMEIDA, Domingos P. F.; PINTADO, M. E. - Effect of modified atmosphere on phytochemical profile of pasteurized peach purées. LWT - Food Science and Technology. ISSN 0023-6438. (2015) vol. 64, nº2, p.520-527
Resumo: Peach phytochemical profile was analysed during 90 days storage under three different gas mixtures: 10 kPa O2+90 kPa N2, 100 kPa N2 and air (78 kPa N2+21 kPa O2+0.03 kPa CO2) for both 4 and 23 °C. The antioxidant activity increased when peach purée was stored under air at 4 °C and 100 kPa N2 at 23 °C, while total phenolic content was not affected by atmospheres. Total carotenoids were more stable for 100 kPa N2, where it decreases 48 and 58% respectively for 4 and 23 °C. The content of (+)-catechin decreased 42% for 10 kPa O2 at 4°C, remaining constant in other atmospheres. Chlorogenic and neochlorogenic acids were well preserved in atmospheres containing oxygen, presenting an increase of 14 and 24% for 10 kPa O2 at 4°C. The higher content of carotenoids was obtained for 100 kPa N2 at 23 °C. Principal component analysis shows that atmospheres variance was associated with carotenoids while storage time was more related with total phenolics and total antioxidant capacity.
Peer review: yes
URI: http://hdl.handle.net/10400.14/18851
DOI: http://dx.doi.org/10.1016/j.lwt.2015.06.023
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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