AI Summary & Key Takeaways
AI InsightAs a result, it was observed that inhibitory activities of only ten strains were due to bacteriocin-like substances.
📌 3 Key Takeaways
Abstract
In this study, lactic acid production was determined of a total of 32 strains of lactobacilli and streptococci. Different amounts of lactic acid were produced by strains studies; however, lactic acid levels were 13.4 to 18.6 mg/mL for Lactobacillus delbrueckii subsp. bulgaricus strains and 0.6 to 11.5 mg/mL for Streptococcus thermophilus strains. Antimicrobial activity was tested against Helicobacter pylori ATCC 43504. The some strains were able to inhibit H. pylori. Bacteriocin-like substances (BLS) producing strains were determined under conditions eliminating the effects of organic acids. As a result, it was observed that inhibitory activities of only ten strains were due to bacteriocin-like substances.
Özet
Bu çalışmada, toplam 32 adet lactobacilli and streptococci suşlarının laktik asit üretimleri belirlenmiştir. Laktik asitin farklı miktarları, çalışmadaki suşlar tarafından üretilmiştir, fakat laktik asit düzeyleri Lactobacillus delbrueckii subsp. bulgaricus suşları için 13.4-18.6 mg/ mL, Streptococcus thermophilus suşları için 0.6-11.5 mg/mL arasındadır. Antimikrobiyal aktivite, Helicobacter pylori ATCC 43504’ ye karşı belirlenmiştir. Bazı suşlar H. pylori’yi inhibe etmiştir. Baktriyosin benzeri maddeler üreten suşlar organik asitlerin etkilerini ortadan kaldıran koşullar altında belirlenmiştir. Sonuç olarak sadece on suşun inhibitor aktivitesinin bakteriyosin benzeri maddelerden dolayı olduğu görülmüştür.