Sürdürülebilir Kalkınma Amaçları
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- MakaleAçık Erişim2019Scopus SJRQ3Genotypic identification of lactic acid bacteria in pastirma produced with different curing processes; [Farklı kürleme İşlemleri İle üretilen pastırmada laktik asit bakterilerinin genotipik İdentifikasyonu]
Çınar, Kübra; Fettahoğlu, Kübra; Kaban, Güzin
The lactic acid bacteria isolated from pastirma, produced under controlled conditions using two different curing temperatures (4°C or 10°C) and two different curing agents (150 mg/kg sodium nitrite or 300 mg/kg potassium nitrate), were subjected to genotypic (16S rRNA sequecing) identification. According to the identification results, 68 of 87 isolates (78.16%) was identified as Pediococcus pentosaceus. This species was followed by P. acidilactici (14.94%), Lactobacillus sakei (4.60%) and L. plantarum (2.30%), respectively. P. pentosaceus was dominant species in all curing applications (4°C/nitrate or nitrite or 10°C/nitrate or nitrite). Another species determined in all groups was P. acidilactici. While L. plantarum was only isolated from samples produced with nitrate (4°C or 10°C), L. sakei was isolated from samples produced with nitrite (4°C or 10°C). The effect of the curing agent on the biodiversity of lactic acid bacteria in pastirma was more effective than the curing temperature.
AtıfScopus3WoS3OpenAlex2
İncele - MakaleAçık Erişim2015Scopus SJRQ2Isolation and identification of an exopolysaccharide producer Streptococcus thermophilus strain from Turkish yogurt; [Yoğurttan ekzopolisakkarit üreten Streptococcus thermophilus suşunun izolasyonu ve tanımlanması]
Dertli, Enes
Production of exopolysaccharides (EPS) by starter Lactic acid bacteria (LAB) gained special interest due to technological role of these natural polymers. Yogurt samples were collected from different households in Turkey and bacterial strains were isolated and evaluated for EPS production. Strains potentially producing EPS were then identified to species level with 16S rRNA sequencing. An EPS producer Streptecoccus thermophilus strain was identified from yogurt samples. EPS was extracted from culture supernatants of S. thermophilus and partially purified and structural analysis of the crude EPS by FTIR spectroscopy revealed the presence of typical functional groups related to exopolysaccharides. This study explains the identification of a potential starter culture for yogurt production with EPS production.
AtıfScopus7WoS7OpenAlex1İncele