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Acid production and growth by oral Lactobacillus species in vitro.
MedLine Citation:
PMID:  22298522     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aim:  To analyze the acid-producing and growth abilities of different oral Lactobacillus species. Methods:  Thirty-nine oral clinical strains and type strains of Lactobacillus, representing nine species, including Lactobacillus casei/paracasei, Lactobacillus fermentum, Lactobacillus gasseri, Lactobacillus mucosae, Lactobacillus oris, Lactobacillus plantarum, Lactobacillus rhamnosus, Lactobacillus salivarius, and Lactobacillus vaginalis were studied. Anaerobically-grown bacterial cells were inoculated overnight in de Man, Rogosa, and Sharpe broth containing 2% glucose (pH 7.0). Acid production and growth were measured at 0, 1.5, 3, 5, 7, and 24 h. Results:  Lactobacillus salivarius, Lactobacillus rhamnosus, Lactobacillus casei/paracasei, and Lactobacillus plantarum grew rapidly and reached an optical density higher than other species. They also produced more acid than the others. Lactobacillus vaginalis showed the lowest rate of growth and acid production. These findings demonstrated that the different species of Lactobacillus showed different abilities to generate acid, allowing the species to be categorized into three groups: strongly, moderately, and weakly acidogenic. Conclusion:  There was variation in acid production and growth between the Lactobacillus species. The strongest acid producers were Lactobacillus salivarius, Lactobacillus rhamnosus, Lactobacillus plantarum, and Lactobacillus casei/paracasei, respectively. It seems possible that these species might play a more important role in caries development than the others.
Authors:
Supatcharin Piwat; Rawee Teanpaisan; Gunnar Dahlén; Songchai Thitasomakul; Charles William Ian Douglas
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-9-15
Journal Detail:
Title:  Journal of investigative and clinical dentistry     Volume:  3     ISSN:  2041-1626     ISO Abbreviation:  J Investig Clin Dent     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101524471     Medline TA:  J Investig Clin Dent     Country:  -    
Other Details:
Languages:  ENG     Pagination:  56-61     Citation Subset:  -    
Copyright Information:
© 2011 Blackwell Publishing Asia Pty Ltd.
Affiliation:
 Common Oral Diseases and Epidemiology Research Center, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Thailand  Department of Stomatology, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Thailand  Department of Oral Microbiology, Institute of Odontology, Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden  Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat-Yai, Thailand  Department of Oral and Maxillofacial Pathology, University of Sheffield, Sheffield, UK.
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