When a thermal pasteurization (90 C, 1 min) was
applied to orange juice and gazpacho, the retention levels
of vitamin C were 82.4% and 79.2%, respectively.
HIPEF-treated products retained a significantly higher
content of vitamin C than did heat-pasteurized foods
(p < 0.05) (Figs. 1–4). Min, Jin, Min, et al. (2003a,
2003b), Yeom et al. (2000) and Sa´nchez-Moreno et al.
(2005) also reported higher levels of vitamin C retention
in orange and tomato juices treated by HIPEF compared
with those processed by thermal treatment. The maximum
temperature reached during HIPEF-processing of samples
was 35 C, whereas 90 C was maintained for 1 min for
heat-pasteurized products.
When a thermal pasteurization (90 C, 1 min) wasapplied to orange juice and gazpacho, the retention levelsof vitamin C were 82.4% and 79.2%, respectively.HIPEF-treated products retained a significantly highercontent of vitamin C than did heat-pasteurized foods(p < 0.05) (Figs. 1–4). Min, Jin, Min, et al. (2003a,2003b), Yeom et al. (2000) and Sa´nchez-Moreno et al.(2005) also reported higher levels of vitamin C retentionin orange and tomato juices treated by HIPEF comparedwith those processed by thermal treatment. The maximumtemperature reached during HIPEF-processing of sampleswas 35 C, whereas 90 C was maintained for 1 min forheat-pasteurized products.
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