Yeast production from virgin grape marc.
An alternative utilization of virgin grape marc (VGM) to produce SCP from S. ceretisiae is reported. A simple extraction method of fresh grape marc produces a sugar-rich solution: through fed-batch fermentation, a high-value yeast biomass instead of a low-value product like ethanol can be produced. Productivity and quality of yeast are similar to these obtainable from molasses. The convenience of yeast production from VGM is briefly discussed; it appears of great interest in south Italy and generally in grape-producing countries, specially if these lack relevant sources of fermentable sugars.
Department of Organic and Biological Chemistry, University of Messina, Italy. rlocurto@isengard.unime.it
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D000434:Alcoholic Beverages; D018533:Biomass; D050260:Carbohydrate Metabolism; D002245:Carbon Dioxide; D000431:Ethanol / Q000378:metabolism; D005285:Fermentation; D007558:Italy; D019685:Rosales / Q000382:microbiology*; D012441:Saccharomyces cerevisiae / Q000254:growth & development* / Q000302:isolation & purification / Q000378:metabolism; D018505:Waste Management
D002245:Carbon Dioxide; D000431:Ethanol