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Comparison of different washing solutions and contact times on the quality maintenance and microbial reduction of fresh-cut iceberg lettuce

Indian Agricultural Research Journals

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Title Comparison of different washing solutions and contact times on the quality maintenance and microbial reduction of fresh-cut iceberg lettuce
 
Creator DAS, BASANTA KUMAR
DAS, JAYASHREE MADHUSMITA
KESAWAT, MAHIPAL SINGH
 
Subject Browning; Chlorinated water; Electrolyzed water; Ozonated water; Sanitizer
 
Description A study was conducted to evaluate the effect of different washing solutions and contact times on the cut-edge browning and microbial quality of fresh-cut iceberg lettuce. Samples were cut into small pieces, washed for 90 sec. and 180 sec. in normal tap water, chlorinated water (100 ml/l,pH 6.5), electrolyzed water (with free chlorine of 100 ml/l, pH 7.2) or ozonated water (3 ml/l). Samples were then, dewatered, packaged in 30 μm polypropylene bags, and stored at 5°C for nine days. Various quality and safety parameters such as gas composition, off-odour, electrical conductivity, cut-edge browning and microbial numbers were evaluated during storage. Results revealed no detectable off odour in all samples during the storage period. However, significant differences in gas composition and electrolyte leakage were marked in samples washed for 180 sec. Samples washed in chlorine for longer contact time showed least cut-edge browning index and lower microbial numbers than other washings initially as well as finally. Hence, concluded that 180 sec. contact time of chlorine washing was better solution to maintain the microbial quality and cut edge browning of fresh-cut iceberg lettuce.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2012-01-03
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/13873
 
Source The Indian Journal of Agricultural Sciences; Vol 82, No 1 (2012)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/13873/6895
 
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