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Food Chem

Title:		Yeast cells in double layer calcium alginate-chitosan microcapsules for sparkling wine production
Author(s):		Benucci I; Cerreti M; Maresca D; Mauriello G; Esti M;
Address:		"Department of Agriculture and Forestry Science (DAFNE), Tuscia University, via S. Camillo de Lellis snc, 01100 Viterbo, Italy. Department of Agriculture and Forestry Science (DAFNE), Tuscia University, via S. Camillo de Lellis snc, 01100 Viterbo, Italy. Electronic address: cerreti@unitus.it. Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy"
Journal Title:		Food Chem
Year:		2019
Volume:		20190713
Issue:
Page Number:		125174 -
DOI:		10.1016/j.foodchem.2019.125174
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"This paper focuses on the use of a new type of yeast encapsulation procedure, applying the chitosan-calcium alginate double layer microcapsules, for the production of Riesling sparkling wine. Four different sparkling wines were produced by free or encapsulated yeasts. The four types of yeast used were adapted (Free EtOH-A, Encapsulated EtOH-A) and non-adapted to ethanol (Free, Encapsulated). The different yeast-inoculating formats had a significant impact on oxygen consumption and pressure increase rate in the bottle during the prise de mousse. Similarly to the free form, encapsulated yeast successfully completed the secondary fermentation. After an ageing period of 6?ª+months, volatiles and sensory profiles of sparkling wines were compared. Although, some differences in volatile profiles were found among samples, sparkling wines produced by Encapsulated EtOH-A showed sensory properties, in terms of aroma, taste and body, similar to those produced by free yeast (both adapted and non-adapted to ethanol)"
Keywords:		Adult Aged Alginates/*chemistry Capsules Chitosan/*chemistry Ethanol/chemistry/pharmacology Female Fermentation Humans Male Middle Aged Odorants Pressure Saccharomyces cerevisiae/drug effects/*physiology Taste Volatile Organic Compounds/analysis Wine/anal;
Notes:		"MedlineBenucci, Ilaria Cerreti, Martina Maresca, Diamante Mauriello, Gianluigi Esti, Marco eng England 2019/07/23 Food Chem. 2019 Dec 1; 300:125174. doi: 10.1016/j.foodchem.2019.125174. Epub 2019 Jul 13"