Document Detail


Acetic acid bacteria in traditional balsamic vinegar: phenotypic traits relevant for starter cultures selection.
MedLine Citation:
PMID:  18177968     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This review focuses on acetic acid bacteria in traditional balsamic vinegar process. Although several studies are available on acetic acid bacteria ecology, metabolism and nutritional requirements, their activity as well as their technological traits in homemade vinegars as traditional balsamic vinegar is not well known. The basic technology to oxidise cooked grape must to produce traditional balsamic vinegar is performed by the so called "seed-vinegar" that is a microbiologically undefined starter culture obtained from spontaneous acetification of previous raw material. Selected starter cultures are the main technological improvement in order to innovate traditional balsamic vinegar production but until now they are rarely applied. To develop acetic acid bacteria starter cultures, selection criteria have to take in account composition of raw material, acetic acid bacteria metabolic activities, applied technology and desired characteristics of the final product. For traditional balsamic vinegar, significative phenotypical traits of acetic acid bacteria have been highlighted. Basic traits are: ethanol preferred and efficient oxidation, fast rate of acetic acid production, tolerance to high concentration of acetic acid, no overoxidation and low pH resistance. Specific traits are tolerance to high sugar concentration and to a wide temperature range. Gluconacetobacter europaeus and Acetobacter malorum strains can be evaluated to develop selected starter cultures since they show one or more suitable characters.
Authors:
Maria Gullo; Paolo Giudici
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2007-12-05
Journal Detail:
Title:  International journal of food microbiology     Volume:  125     ISSN:  0168-1605     ISO Abbreviation:  Int. J. Food Microbiol.     Publication Date:  2008 Jun 
Date Detail:
Created Date:  2008-06-13     Completed Date:  2008-09-30     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  46-53     Citation Subset:  IM    
Affiliation:
Department of Agricultural Sciences, University of Modena and Reggio Emilia, Via Amendola, 2, 42100 Reggio Emilia, Italy. maria.gullo@unimore.it
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MeSH Terms
Descriptor/Qualifier:
Acetic Acid / metabolism*
Acetobacteraceae / classification,  growth & development,  metabolism,  physiology*
Adaptation, Physiological
Colony Count, Microbial
Fermentation*
Food Microbiology*
Glucose / metabolism*
Hydrogen-Ion Concentration
Oxidation-Reduction
Temperature
Chemical
Reg. No./Substance:
50-99-7/Glucose; 64-19-7/Acetic Acid

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


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