| Optimization of chitosan treatments for managing microflora in lettuce seeds without affecting germination. | |
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MedLine Citation:
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PMID: 23218371 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Many studies have focused on seed decontamination but no one has been capable of eliminating all pathogenic bacteria. Two objectives were followed. First, to assess the in vitro antimicrobial activity of chitosan against: (a) Escherichia coli O157:H7, (b) native microflora of lettuce and (c) native microflora of lettuce seeds. Second, to evaluate the efficiency of chitosan on reducing microflora on lettuce seeds. The overall goal was to find a combination of contact time and chitosan concentration that reduces the microflora of lettuce seeds, without affecting germination. After treatment lettuce seeds presented no detectable microbial counts (<10(2)CFU/50seeds) for all populations. Moreover, chitosan eliminated E. coli. Regardless of the reduction in the microbial load, a 90% reduction on germination makes imbibition with chitosan, uneconomical. Subsequent treatments identified the optimal treatment as 10min contact with a 10g/L chitosan solution, which maintained the highest germination percentage. |
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Authors:
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M G Goñi; M R Moreira; G E Viacava; S I Roura |
Publication Detail:
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Type: Journal Article Date: 2012-10-06 |
Journal Detail:
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Title: Carbohydrate polymers Volume: 92 ISSN: 1879-1344 ISO Abbreviation: Carbohydr Polym Publication Date: 2013 Jan |
Date Detail:
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Created Date: 2012-12-10 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8307156 Medline TA: Carbohydr Polym Country: England |
Other Details:
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Languages: eng Pagination: 817-23 Citation Subset: IM |
Copyright Information:
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Copyright © 2012 Elsevier Ltd. All rights reserved. |
Affiliation:
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Concejo Nacional de Ciencia y Tecnología (CONICET), Argentina; Grupo de Investigación en Ingeniería de Alimentos, Facultad de Ingeniería, UNMdP, Juan B. Justo 4302, Mar del Plata 7600, Argentina. Electronic address: ggoni@fi.mdp.edu.ar. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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