https://ria.asturias.es/RIA/handle/123456789/45 Tue, 16 Dec 2025 17:38:34 GMT 2025-12-16T17:38:34Z https://ria.asturias.es/RIA/handle/123456789/925 Title: Yeast species associated with the spontaneous fermentation of cider Authors: Suárez Valles, Belén; Pando Bedriñana, Rosa; Fernández Tascón, Norman; Querol Simón, A.; Rodríguez Madrera, Roberto Abstract: This paper reports the influence of cider-making technology (pneumatic and traditional pressing) on the dynamics of wild yeast populations. Yeast colonies isolated from apple juice before and throughout fermentation at a cider cellar of Asturias (Spain), during two consecutive years were studied. The yeast strains were identified by restriction fragment length polymorphism analysis of the 5.8S rRNA gene and the two flanking internal transcribed sequences (ITS). The musts obtained by pneumatic pressing were dominated by non- Saccharomyces yeasts (Hanseniaspora genus and Metschnikowia pulcherrima) whereas in the apple juices obtained by traditional pressing Saccharomyces together with non-Saccharomyces, were always present. The species Saccharomyces present were S. cerevisiae and S. bayanus. Apparently S. bayanus, was the predominant species at the beginning and the middle fermentation steps of the fermentation process, reaching a percentage of isolation between 33% and 41%, whereas S. cerevisiae took over the process in the final stages of fermentation. During the 2001 harvest, with independence of cider-making technology, the species Hanseniaspora valbyensis was always isolated at the end of fermentations. Thu, 01 Feb 2007 00:00:00 GMT https://ria.asturias.es/RIA/handle/123456789/925 2007-02-01T00:00:00Z https://ria.asturias.es/RIA/handle/123456789/12106 Title: Y-specific microsatellites reveal an African subfamily in taurine (Bos taurus) cattle Authors: Perez Pardal, L.; Royo, L.; Beja Pereira, A.; Curik, I.; Traore, A.; Fernández, I.; Solkner, J.; Alonso, J.; Alvarez, I.; Bozzi, R.; Chen, S.; León, F. de; Goyache, Félix Abstract: Five cattle Y-specific microsatellites, totalling six loci, were selected from a set of 44 markers and genotyped on 608 Bos taurus males belonging to 45 cattle populations from Europe and Africa. A total of 38 haplotypes were identified. Haplogroups (Y1 and Y2) previously defined using single nucleotide polymorphisms did not share haplotypes. Nine of the 27 Y2-haplotypes were only present in African cattle. Network and correspondence analyses showed that this African-specific subfamily clustered separately from the main Y2-subfamily and the Y1 haplotypes. Within-breed genetic variability was generally low, with most breeds (78%) showing haplotypes belonging to a single haplogroup. AMOVA analysis showed that partitioning of genetic variation among breeds can be mainly explained by their geographical and haplogroup assignment. Between-breed genetic variability summarized via Principal Component Analysis allowed the identification of three principal components explaining 94.2% of the available information. Projection of principal components on geographical maps illustrated that cattle populations located in mainland Europe, the three European Peninsulas and Mediterranean Africa presented similar genetic variation, whereas those breeds from Atlantic Europe and British Islands (mainly carrying Y1 haplotypes) and those from Sub-Saharan Africa (belonging to Y2-haplogroup) showed genetic variation of a different origin. Our study confirmed the existence of two large Ychromosome lineages (Y1 and Y2) in taurine cattle. However, Y-specific microsatellites increased analytical resolution and allowed at least two different Y2-haplotypic subfamilies to be distinguished, one of them restricted to the African continent. Fri, 01 Jan 2010 00:00:00 GMT https://ria.asturias.es/RIA/handle/123456789/12106 2010-01-01T00:00:00Z https://ria.asturias.es/RIA/handle/123456789/1910 Title: XLI Seminario de Técnicos Especialistas en Horticultura Sun, 01 Jan 2012 00:00:00 GMT https://ria.asturias.es/RIA/handle/123456789/1910 2012-01-01T00:00:00Z https://ria.asturias.es/RIA/handle/123456789/11908 Title: Wilting and inoculation of Lactobacillus buchneri on intercropped triticale-fava silage: effects on nutritive, fermentative and aerobic stability characteristics Authors: Martínez Fernández, Adela; Soldado, Ana; Vicente, Fernando; Martínez, Antonio; Roza Delgado, Begoña de la Abstract: null Fri, 01 Jan 2010 00:00:00 GMT https://ria.asturias.es/RIA/handle/123456789/11908 2010-01-01T00:00:00Z