Streptococcus thermophilus APC151 strain is suitable for the manufacture of naturally GABA-enriched bioactive yogurt

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dc.contributor.authorLinares, Daniel M.
dc.contributor.authorO'Callaghan, Tom F.
dc.contributor.authorO'Connor, Paula M.
dc.contributor.authorRoss, R. Paul
dc.contributor.authorStanton, Catherine
dc.contributor.authorStanton, Catherine
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2016-12-01T15:23:06Z
dc.date.available2016-12-01T15:23:06Z
dc.date.issued2016-11-23
dc.date.updated2016-12-01T15:12:29Z
dc.description.abstractConsumer interest in health-promoting food products is a major driving force for the increasing global demand of functional (probiotic) dairy foods. Yogurt is considered the ideal medium for delivery of beneficial functional ingredients. Gamma-amino-butyric acid has potential as a bioactive ingredient in functional foods due to its health-promoting properties as an anti-stress, anti-hypertensive, and anti-diabetic agent. Here, we report the use of a novel Streptococcus thermophilus strain, isolated from the digestive tract of fish, for production of yogurt naturally enriched with 2 mg/ml of gamma-amino-butyric acid (200 mg in a standard yogurt volume of 100 ml), a dose in the same range as that provided by some commercially available gamma-amino-butyric acid supplements. The biotechnological suitability of this strain for industrial production of yogurt was demonstrated by comparison with the reference yogurt inoculated with the commercial CH1 starter (Chr. Hansen) widely used in the dairy industry. Both yogurts showed comparable pH curves [ΔpH/Δt = 0.31-0.33 h-1], viscosity [0.49 Pa-s], water holding capacity [72–73%], and chemical composition [moisture (87–88%), protein (5.05–5.65%), fat (0.12–0.15%), sugar (4.8–5.8%), and ash (0.74–1.2%)]. Gamma-amino-butyric acid was not detected in the control yogurt. In conclusion, the S. thermophilus APC151 strain reported here provides a natural means for fortification of yogurt with gamma-amino-butyric acid.en
dc.description.sponsorshipScience Foundation Ireland (APC Microbiome Institute, a Centre for Science and Technology (CSET) funded by the Science Foundation Ireland (SFI), through the Irish Government’s National Development Plan.)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLinares, D. M., O' Callaghan,T. F., O' Connor, P. M., Ross, R. P. and Stanton,C. (2016) 'Streptococcus thermophilus APC151 Strain Is Suitable for the Manufacture of Naturally GABA-Enriched Bioactive Yogurt'. Frontiers In Microbiology, 7 :1876 (9pp). doi:10.3389/fmicb.2016.01876en
dc.identifier.doi10.3389/fmicb.2016.01876
dc.identifier.endpage1876-9en
dc.identifier.issn1664-302X
dc.identifier.journaltitleFrontiers In Microbiologyen
dc.identifier.startpage1876-1en
dc.identifier.urihttps://hdl.handle.net/10468/3340
dc.identifier.volume7en
dc.language.isoenen
dc.publisherFrontiers Mediaen
dc.rights© 2016 Linares, O’Callaghan, O’Connor, Ross and Stanton. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectGABAen
dc.subjectStreptococcus thermophilesen
dc.subjectBioactive yogurten
dc.subjectStarteren
dc.subjectBiofunctional fooden
dc.titleStreptococcus thermophilus APC151 strain is suitable for the manufacture of naturally GABA-enriched bioactive yogurten
dc.typeArticle (peer-reviewed)en
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