Identification of Streptococcus infantarius subsp. infantarius as the species primarily responsible for acid production in Izmir Brined Tulum Cheese from the Aegean Region of Türkiye

•Acid producing lactic acid bacteria in Izmir Brined Tulum cheese were studied.•The dominant acid producers were S. infantarius subsp. infantarius strains.•S. infantarius subsp. infantarius isolates demonstrated large genetic diversity.•S. macedonicus was isolated from Izmir Brined Tulum cheese for the first time.•Whole-genome sequencing revealed important information about S. infantarius AYB210.