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RAPD analysis : a rapid technique for differentation of spoilage yeasts

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Author: Baleiras Couto, M.M. · Vossen, J.M.B.M. van der · Hofstra, H. · Huis in 't Veld, J.H.J.
Type:article
Date:1994
Institution: Centraal Instituut voor Voedingsonderzoek TNO
Source:International Journal of Food Microbiology, 1-2, 24, 249-260
Identifier: 81924
doi: DOI:10.1016/0168-1605(94)90123-6
Keywords: Nutrition · Base Sequence · Comparative Study · DNA Primers · DNA, Fungal · Fatty Acids · Food Microbiology · Genetic Techniques · Molecular Sequence Data · Mycology · Polymorphism (Genetics) · Saccharomyces cerevisiae · Saccharomycetales · Species Specificity · Support, Non-U.S. Gov't · Saccharomyces cerevisiae · Zygosaccharomyces

Abstract

Techniques for the identification of the spoilage yeasts Saccharomyces cerevisiae and members of the Zygosaccharomyces genus from food and beverages sources were evaluated. The use of identification systems based on physiological characteristics resulted often in incomplete identification or misidentification. Also the cellular fatty acid analysis failed on differentiating species within the Zygosaccharomyces genus. However, the Random Amplified Polymorphic DNA (RAPD) assay, using selected 10-mer oligonucleotides, allowed discrimination between all species tested. For this RAPD assay, a simple and reproducible method of DNA isolation from spoilage yeast cells is described.