List of Articles بیفیدوباکتریوم

• Open Access Article
  • Abstract Page
  • Full-Text
  
  1 - Investigating the essential oil of the medicinal plant Thymus (Thymus vulgaris L.) in the production of probiotic dairy products by determining the viability of bacteria
  farah farahani Alireza Tammimi Mohammad Reza Khatami nejad
  Purpose: 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. Materials and methods: Thyme essential oil is used as a flavoring agent More

  Purpose: 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. Materials and methods: 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). Findings: 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. Conclusion: 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. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  2 - Detoxification of aflatoxin M1 by Bifidobacterium lactis and Streptococcus thermophilus in skimmed milk
  Masoud Atashpanjeh Seyed Amirali Anvar Amireghbal Khajehrahimi Maryam Tala نکیسا  Sohrabi Haghdoost
  Contamination of food products, especially dairy products, with aflatoxins, is one of the main problems in the food industry. This research aimed to remove aflatoxin M1 using two probiotics, Bifidobacterium lactis and Streptococcus thermophilus, either alone or in combi More

  Contamination of food products, especially dairy products, with aflatoxins, is one of the main problems in the food industry. This research aimed to remove aflatoxin M1 using two probiotics, Bifidobacterium lactis and Streptococcus thermophilus, either alone or in combination, in skimmed milk containing this toxin. The study investigated the effects of storage time, microbial strain, bacterial concentration, toxin concentration, and temperature on the removal of aflatoxin M1. Two probiotic bacteria, Bifidobacterium lactis and Streptococcus thermophilus, at dilutions of 108 and 1010 CFU/ml, were inoculated alone and in combination into skimmed milk contaminated with different concentrations of aflatoxin M1 (0.1, 0.25, and 0.5 μg/ml). The samples were then incubated at 4°C and 37°C for 0.5, 1, 2, and 24 hours. The detoxification percentage of aflatoxin M1 was measured using high-performance liquid chromatography (HPLC). The results showed an increase in the removal of aflatoxin M1 with time. The removal of aflatoxin M1 by these strains varied from 12% to 87% depending on the concentration of bacteria, storage time, toxin concentration, and bacterial strain, whether alone or in combination. The results of this study suggest that using probiotics can be an effective method for reducing or eliminating the concentration of aflatoxin M1 in the dairy industry. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  3 - Investigation of bacterial abundance of Lactobacillus, Bifidobacterium, Enterococcus faecalis and Fusobacterium nucleatum in paraffin tissue samples of intestinal adenomatous polyps.
  Mohamadreza   Esrafili Reza Shapouri حبیب ضیغمی Fakhri Haghi
  Background & Aim: Microbiota is a collection of microorganisms that live in the oral cavity, respiratory system and intestine of multicellular organisms. Microbiota exerts numerous physiological and pathological effects on the host in which it lives. Increasing attentio More

  Background & Aim: Microbiota is a collection of microorganisms that live in the oral cavity, respiratory system and intestine of multicellular organisms. Microbiota exerts numerous physiological and pathological effects on the host in which it lives. Increasing attention has been directed to the interaction of host and microbiota. Adenomatous polyps are one of the common symptoms of colon cancer, the second leading cause of cancer-related death worldwide. Our study tries to show the relationship between Lactobacillus, Bifidobacterium, Enterococcus faecalis and Fusobacterium nucleatum in the intestinal paraffin tissue samples of adenomatous polyp patients and healthy individuals. Materials & methods: In this study, in order to investigate the mentioned bacteria in a total of 100 samples of intestinal paraffin tissue from adenomatous polyp patients (50 people) and healthy controls (50 people) for the presence, copy number and relative quantity of the above bacterial species using Real-time polymerase chain reaction (PCR), compared to the reference gene, were investigated. Results: In the studied samples, the presence and number of copies of Enterococcus faecalis bacteria in adenomatous polyp samples was significantly higher than the other three groups. There was no significant difference in the abundance and presence of Fusobacterium nucleatum and Lactobacillus species between the two groups. Also, a decrease in the average number of gaps and the relative abundance of Bifidobacterium species in adenomatous polyps compared to the control group was obtained. Conclusion: Our study showed a higher number of Enterococcus faecalis bacteria and a decrease in the number of Bifidobacterium species in the samples of intestinal paraffin tissue of patients with adenomatous polyps compared to the control group. However, any association between gut microbiome dysbiosis and adenomatous polyps remains unknown. Manuscript profile