Document Detail


Biodegradable gelatin-chitosan films incorporated with essential oils as antimicrobial agents for fish preservation.
MedLine Citation:
PMID:  20688230     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Essential oils of clove (Syzygium aromaticum L.), fennel (Foeniculum vulgare Miller), cypress (Cupressus sempervirens L.), lavender (Lavandula angustifolia), thyme (Thymus vulgaris L.), herb-of-the-cross (Verbena officinalis L.), pine (Pinus sylvestris) and rosemary (Rosmarinus officinalis) were tested for their antimicrobial activity on 18 genera of bacteria, which included some important food pathogen and spoilage bacteria. Clove essential oil showed the highest inhibitory effect, followed by rosemary and lavender. In an attempt to evaluate the usefulness of these essential oils as food preservatives, they were also tested on an extract made of fish, where clove and thyme essential oils were the most effective. Then, gelatin-chitosan-based edible films incorporated with clove essential oil were elaborated and their antimicrobial activity tested against six selected microorganisms: Pseudomonas fluorescens, Shewanella putrefaciens, Photobacterium phosphoreum, Listeria innocua, Escherichia coli and Lactobacillus acidophilus. The clove-containing films inhibited all these microorganisms irrespectively of the film matrix or type of microorganism. In a further experiment, when the complex gelatin-chitosan film incorporating clove essential oil was applied to fish during chilled storage, the growth of microorganisms was drastically reduced in gram-negative bacteria, especially enterobacteria, while lactic acid bacteria remained practically constant for much of the storage period. The effect on the microorganisms during this period was in accordance with biochemical indexes of quality, indicating the viability of these films for fish preservation.
Authors:
J Gómez-Estaca; A López de Lacey; M E López-Caballero; M C Gómez-Guillén; P Montero
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-05-15
Journal Detail:
Title:  Food microbiology     Volume:  27     ISSN:  1095-9998     ISO Abbreviation:  Food Microbiol.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-08-06     Completed Date:  2010-12-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8601127     Medline TA:  Food Microbiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  889-96     Citation Subset:  IM    
Copyright Information:
2010 Elsevier Ltd. All rights reserved.
Affiliation:
Instituto del Frío (CSIC), José Antonio Novais 10, 28040-Madrid, Spain.
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MeSH Terms
Descriptor/Qualifier:
Animals
Anti-Bacterial Agents / pharmacology
Bacteria / drug effects
Chitosan / pharmacology*
Clove Oil / pharmacology
Colony Count, Microbial
Consumer Product Safety
Food Microbiology
Food Preservation / methods*
Food Preservatives / pharmacology*
Gels
Humans
Microbial Sensitivity Tests
Oils, Volatile / pharmacology*
Pinus / chemistry
Plant Oils / pharmacology
Rosmarinus
Seafood / microbiology,  standards*
Thymus Plant / chemistry
Chemical
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Clove Oil; 0/Food Preservatives; 0/Gels; 0/Oils, Volatile; 0/Plant Oils; 8000-25-7/rosemary oil; 8000-28-0/lavender oil; 8006-84-6/fennel oil, bitter; 9012-76-4/Chitosan

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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