Antimicrobial and functional properties of lactic acid bacteria isolated from sourdoughs
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Academic Press
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The technological and functional properties of 15 LAB species previously isolated from sourdough were determined in terms of antifungal and antibacterial activities, production of GABA as a functional component and phytase activity. All sourdough isolates were capable of producing GABA and Weissella paramesenteroides N-7 and Lactobacillus paralimentarius E-106 showed the highest and the lowest production levels as 18,43 mM and 3,39 mM, respectively determined by HPLC analysis. The antifungal activity of these strains were tested against Aspergillus niger and Penicillium chrysogenum and two strains Lactobacillus paraplantarum N-15 and L. paralimentarius E-106 showed significant inhibitory effects to these mould species. Generally, different levels of antibacterial activity of these species were observed against food-borne pathogens but only one strain showed low levels of inhibitory effect to Salmonella typhimurium but not the other strains. The PCR detection of several bacteriocin coding genes revealed that all strains were harboured at least one bacteriocin gene among the tested genes. Finally, all strains showed phytase activity but these activity was dependant on strain specific conditions. This study revealed some important techno-functional properties of sourdough LAB strains which can play crucial roles on sourdough technology. © 2017
Açıklama
Anahtar Kelimeler
Antifungal activity, GABA production, Lactic acid bacteria (LAB), Sourdough, Aspergillus, Enzymes, Fungi, Genes, Lactic acid, Salmonella, Strain, Anti-bacterial activity, Anti-fungal activity, Functional components, Functional properties, Lactic acid bacteria, Penicillium chrysogenum, Salmonella typhimurium, Sourdough, Bacteria, Antifungal activity, GABA production, Lactic acid bacteria (LAB), Sourdough, Aspergillus, Enzymes, Fungi, Genes, Lactic acid, Salmonella, Strain, Anti-bacterial activity, Anti-fungal activity, Functional components, Functional properties, Lactic acid bacteria, Penicillium chrysogenum, Salmonella typhimurium, Sourdough, Bacteria
Kaynak
LWT - Food Science and Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
79
