%0 Journal Article
%T The influence of processing and long-term storage on the antioxidant metabolism of acerola (Malpighia emarginata) pur¨¦e
%A Oliveira
%A Luciana S.
%A Rufino
%A Maria S. M.
%A Moura
%A Carlos F. H.
%A Cavalcanti
%A Fabio R.
%A Alves
%A Ricardo E.
%A Miranda
%A Maria R. A.
%J Brazilian Journal of Plant Physiology
%D 2011
%I Scientific Electronic Library Online
%R 10.1590/S1677-04202011000200007
%X this study evaluated the effect of the processing and long-term storage on the antioxidant potential and activity of antioxidant enzymes of frozen pur¨¦es from six acerola clones. ripe acerolas from clones brs 235, brs 236, brs 237, brs 238, ii47/1 and brs 152 were harvested; the pulp was processed, packed in sealed polyethylene plastic bags and stored in a domestic freezer at -18ˇăc for 11 months. samples of each clone were analyzed on harvest/processing day and every 30 days after for bioactive antioxidant compounds, antioxidant enzyme activity and total antioxidant activity. acerola pur¨¦es presented a decrease of non-enzyme antioxidants and an increase of antioxidant enzymes activities, indicatives of a compensatory mechanism between enzymatic and non-enzymatic antioxidants. in acerola pur¨¦e, anthocyanin and polyphenols are strongly correlated to soluble solids content and vitamin c seems a major contributor to total antioxidant activity. clone ii47/1 had an outstanding performance regarding the antioxidant potential of its pur¨¦e and the best storage period at -18oc would be 150 days, for all clones studied.
%K pulp
%K enzymes
%K vitamin c
%K postharvest
%K frozen.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1677-04202011000200007&lng=en&nrm=iso&tlng=en