title: Characterization of technological features of dry yeast (strain I-7-43) preparation, product of electrofusion between Saccharomyces cerevisiae and Saccharomyces diastaticus, in industrial application.
abstract: The aim of the study was to verify the technological usability and stability of biotechnological features of active dry distillery yeast preparation (strain I-7-43 with amylolytic abilities) applied to full-scale production of agricultural distillery. Various reduced doses of glucoamylase preparation (San-Extra L) were used for starch saccharification, from 90% to 70% in relation to the full standard dose of preparation. The dry distillery yeast I-7-43 were assessed positively in respect to fermentation activity and yield of ethanol production. Application of the dry yeast I-7-43 preparation in distillery practice lowers the costs of spirit production by saving the glucoamylase preparation (up to 30%) used in the process of mash saccharification. Concentrations of the volatile fermentation by-products in raw spirits obtained from fermentations with application of I-7-43 strain were on the levels guaranteeing good organoleptic properties of distillates.
authors: Institute of Agricultural and Food Biotechnology, Independent Distillery Laboratory, 85-090 Bydgoszcz, Powstańców Wielkopolskich 17, Poland.
authors: Katarzyna
authors: K
authors: Kotarska
authors: Grzegorz
authors: G
authors: Kłosowski
authors: Bogusław
authors: B
authors: Czupryński
mesh_terms: D000434:Alcoholic Beverages; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005524:Food Technology; D005087:Glucan 1,4-alpha-Glucosidase / Q000378:metabolism; D007218:Industrial Microbiology / Q000379:methods*; D012440:Saccharomyces / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D013213:Starch / Q000378:metabolism
chemical_list: D000431:Ethanol; D013213:Starch; D005087:Glucan 1,4-alpha-Glucosidase