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Quality of fresh cut pupunha palm cabbage: application of antioxidants

Marisa Carvalho Botelho Suzana Chitarra Leme Luiz Carlos de Oliveira Lima Sheila Andrade Abrahão Heloísa Helena de Silqueira Adimilson Bosco Chitarra About the authors

The objective of this work was to evaluate the role antioxidants in preventing both browning and quality maintenance of fresh cut pupunha palm cabbage stored at 5º C (± 1º C and 90% ± 5% RH). The pupunha palm cabbages were purchased in the town of Coqueiral (MG), washed in running water and neutral detergent, sanitized with 200 mg L-1 sodium hypochlorite for 15 min, processed into 1cm-thick rings, sanitized with 100 mg L-1 sodium hypochlorite for 10 min and submitted to the following treatments: control, 0.5% cysteine, 0.5% citric acid and 0.5% cysteine + 0.5% citric acid. Afterwards, they were packed into stiff polypropylene packages stored for 12 days at 5º C (± 1º C and 90% ± 5% RH). The experimental design was completely randomized in a factorial 4x7 (4 treatments and 7 storage times) with three replicates. The control group showed useful life of 8 days. The treatment with 0.5% cysteine was the one which kept the quality of the fresh cut pupunha palm cabbage (Bactris gasipaes Kunth), characterizing a product with lower values and fewer oscillations of a* e b*, maintenance of firmness and titrable acidity along the storage, reduction of proxidase activity and maintenance of the product quality during the period valued.

Pupunha palm cabbage; citric acid; cysteine; minimum processing

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