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Effect of antioxidants in fresh cut radishes during the cold storage

Authors :
Edwin M. M. Ortega
Ricardo Alfredo Kluge
Juan Saavedra del Aguila
Lília Sichmann Heiffig
Marcos José Trevisan
Fabiana Fumi Sasaki
Source :
Brazilian Archives of Biology and Technology, Vol 51, Iss 6, Pp 1217-1223 (2008), Brazilian Archives of Biology and Technology v.51 n.6 2008, Brazilian Archives of Biology and Technology, Instituto de Tecnologia do Paraná (Tecpar), instacron:TECPAR, Brazilian Archives of Biology and Technology, Volume: 51, Issue: 6, Pages: 1217-1223, Published: DEC 2008
Publication Year :
2008
Publisher :
FapUNIFESP (SciELO), 2008.

Abstract

The objective of this study was to evaluate the efficiency of antioxidants in the cold storage of fresh cut radishes. The shredded roots were submerged in the respective treatments during 3 min (ascorbic acid or citric acid) and stored at 5ºC and 90% RH during 10 days. The radish treated with ascorbic acid showed the higher respiratory rate in the first 4 h after the processing during the storage. The content of total soluble solids (TSS) was significantly higher in the treatment with citric acid. There was an increase in the content of ascorbic acid after two day of storage in the treatments with this antioxidant. The values of lightness (L*) were decreasing along the storage. Citric acid treatments caused strongly red coloration in the minimally processed roots. None of the treatments avoided the browning of the shredded radishes during the cold storage.O presente experimento objetivou testar o uso de antioxidantes na conservação de rabanetes minimamente processados. Os rabanetes minimamente processados foram submersos nos tratamentos por 3 minutos (ácido ascórbico ou ácido cítrico) e armazenados a 5ºC (±1ºC) e 90% (±5%) UR durante 10 dias. O tratamento com ácido ascórbico gerou a maior taxa respiratória nas 4 primeiras horas após o processamento e durante o armazenamento. O teor de sólidos solúveis totais (SST) foi significativamente maior no tratamento com ácido cítrico. Quanto ao teor de ácido ascórbico, para os tratamentos com ácido ascórbico houve um aumento significativo no 2º dia. Os valores de luminosidade (L*) apresentaram redução durante o armazenamento. Os tratamentos com ácido cítrico provocaram uma forte coloração vermelha nas raízes minimamente processadas. Nenhum dos tratamentos evitou o escurecimento das raízes de rabanete minimamente processadas.

Details

ISSN :
15168913
Volume :
51
Database :
OpenAIRE
Journal :
Brazilian Archives of Biology and Technology
Accession number :
edsair.doi.dedup.....2b594fc317ffff1e4ff859f7af12f97d
Full Text :
https://doi.org/10.1590/s1516-89132008000600017