{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Puyo M"],"funding":["Regional concil of Bourgogne-Franche-Comte","Fonds Européens de Développement Regional","AEB group"],"pagination":["724"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC10930766"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(5)"],"pubmed_abstract":["As a biological alternative to the antimicrobial action of SO<sub>2</sub>, bioprotection has been proposed to winemakers as a means to limit or prevent grape musts microbial alteration. Competition for nitrogenous nutrients and for oxygen are often cited as potential explanations for the effectiveness of bioprotection. This study analyses the effect of a bioprotective <i>M. pulcherrima</i> strain on the growth of one <i>H. valbyensis</i> strain and one <i>H. uvarum</i> strain. Bioprotection efficiency was observed only against <i>H. valbyensis</i> inoculated at the two lowest concentrations. These results indicate a potential species-dependent efficiency of the bioprotective strain and a strong impact of the initial ratio between bioprotective and apiculate yeasts. The analysis of the consumption of nitrogen compounds revealed that leucine, isoleucine, lysine and tryptophan were consumed preferentially by all three strains. The weaker assimilation percentages of these amino acids observed in <i>H. valbyensis</i> at 24 h growth suggest competition with <i>M. pulcherrima</i> that could negatively affects the growth of the apiculate yeast in co-cultures. The slowest rate of O<sub>2</sub> consumption of <i>H. valbyensis</i> strain, in comparison with <i>M. pulcherrima</i>, was probably not involved in the bioprotective effect. Non-targeted metabolomic analyses of <i>M. pulcherrima</i> and <i>H. valbyensis</i> co-culture indicate that the interaction between both strains particularly impact lysin and tryptophan metabolisms."],"journal":["Foods (Basel, Switzerland)"],"pubmed_title":["Competition for Nitrogen Resources: An Explanation of the Effects of a Bioprotective Strain <i>Metschnikowia pulcherrima</i> on the Growth of <i>Hanseniaspora</i> Genus in Oenology."],"pmcid":["PMC10930766"],"funding_grant_id":["2019-Y-10616","Grant CIFRE n°2019/1162","PO FEDER-FSE Bourgogne 2014-2020, N◦SYNERGIE BG0025005"],"pubmed_authors":["Simonin S","Scalabrino L","Tourdot-Marechal R","Puyo M","Alexandre H","Romanet R","Klein G"],"additional_accession":[]},"is_claimable":false,"name":"Competition for Nitrogen Resources: An Explanation of the Effects of a Bioprotective Strain <i>Metschnikowia pulcherrima</i> on the Growth of <i>Hanseniaspora</i> Genus in Oenology.","description":"As a biological alternative to the antimicrobial action of SO<sub>2</sub>, bioprotection has been proposed to winemakers as a means to limit or prevent grape musts microbial alteration. Competition for nitrogenous nutrients and for oxygen are often cited as potential explanations for the effectiveness of bioprotection. This study analyses the effect of a bioprotective <i>M. pulcherrima</i> strain on the growth of one <i>H. valbyensis</i> strain and one <i>H. uvarum</i> strain. Bioprotection efficiency was observed only against <i>H. valbyensis</i> inoculated at the two lowest concentrations. These results indicate a potential species-dependent efficiency of the bioprotective strain and a strong impact of the initial ratio between bioprotective and apiculate yeasts. The analysis of the consumption of nitrogen compounds revealed that leucine, isoleucine, lysine and tryptophan were consumed preferentially by all three strains. The weaker assimilation percentages of these amino acids observed in <i>H. valbyensis</i> at 24 h growth suggest competition with <i>M. pulcherrima</i> that could negatively affects the growth of the apiculate yeast in co-cultures. The slowest rate of O<sub>2</sub> consumption of <i>H. valbyensis</i> strain, in comparison with <i>M. pulcherrima</i>, was probably not involved in the bioprotective effect. Non-targeted metabolomic analyses of <i>M. pulcherrima</i> and <i>H. valbyensis</i> co-culture indicate that the interaction between both strains particularly impact lysin and tryptophan metabolisms.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Feb","modification":"2024-11-07T11:34:15.455Z","creation":"2024-11-07T11:34:15.455Z"},"accession":"S-EPMC10930766","cross_references":{"pubmed":["38472837"],"doi":["10.3390/foods13050724"]}}