جستجوی مقالات مرتبط با کلیدواژه « لاکتوباسیلوس اسیدوفیلوس » در نشریات گروه « بیوتکنولوژی و ژنتیک گیاهی »

The purpose of the present study was to investigate the essential oil of the medicinal plant Thymus vulgaris L. in the production of probiotic dairy products by determining the viability.

Thyme essential oil is used as a flavoring agent in the production of traditional and industrial dairy products (yogurt, buttermilk, and curd). To produce probiotic products and pasteurized dairy products, bacteria are inoculated and different concentrations of thyme essential oil (0, 25, 40, 70, 100 and 130 micrograms/ liter) are added to dairy products. The viability of bacteria in dairy products is checked at specific time intervals (0, 4, 8, 12 and 20 days).

By increasing the concentration of thyme in traditional and industrial dairy products, there is a significant decrease in the logarithm of Lactobacillus and Bifidobacterium bacteria (P<0.05). The highest viability of bacteria was observed with low concentrations of thyme in traditional yogurt, and with moderate amounts of essential oil in buttermilk and traditional curd, within 20 days. The highest viability of bacteria is in yogurt and industrial butter with high concentration and in industrial curd with a decrease in the amount of essential oil. The highest viability of Bifidobacterium bacteria is found with high concentrations of thyme in yogurt, buttermilk and traditional curd (P<0.05), also with low concentrations of thyme in industrial yogurt and buttermilk, and with high concentrations in industrial curd.

In industrial dairy products with thyme, the viability of Bifidobacterium bacteria is longer, and in traditional dairy products, the shelf life of Lactobacillus bacteria is longer.

Lactobacilli are the most well-known natural vaginal flora that helps keep the vaginal acidic environment in the presence of hydrogen peroxide enzymes. Lactobacillus destroys pathogenic bacteria in the vagina through the production of hydrogen peroxide.

Among the patients referring to the medical centers of Urmia, 250 women with abortion history who were between 25 and 30 years of age were selected based on a questionnaire and a clinical examination and a sample was taken from them. 250 samples were taken from the vaginal area using sterile swabs and the presence of Lactobacillus acidophilus was confirmed by whiff test and biochemical tests. Then, the drug resistance and sensitivity of Lactobacillus acidophilus to 9 antibiotics cotrimoxazole, vancomycin, ceftazidime, ampicillin, ciprofloxacin, streptomycin, ampicillin, piperacillin and colistin were studied.

from 250 samples, 238 samples (95.2%) had bacteria Lactobacillus acidophilus and in 12 samples (4.8%) bacteria were not observed. All abortion patients are sensitive to cotrimoxazole, piperacillin, and clostin antibiotics. Also, all samples were resistant to the antibiotics vancomycin, imipenem, ceftazidime, ciprofloxacin, streptomycin