Article
Biochemistry & Molecular Biology
Wei Lyu, Qingren Meng, Jingfa Xiao, Jing Li, Jian Wang, Zhifeng Qiu, Xiaojing Song, Hua Zhu, Changjun Shao, Yanan Chu, Qian Zhou, Taisheng Li, Routy Jean-Pierre, Jun Yu, Yang Han, Yu Kang
Summary: A study revealed that certain lactate-producing bacteria are associated with immune recovery in HIV-infected patients and can promote CD4 + cell restoration in a mouse model. These findings support the use of these bacteria as a therapeutic strategy for improving CD4 + cell count in HIV-infected patients.
COMPUTATIONAL AND STRUCTURAL BIOTECHNOLOGY JOURNAL
(2021)
Article
Agriculture, Dairy & Animal Science
Ireland R. Green, Craig J. Oberg, Jeffery R. Broadbent, Randall K. Thunell, Donald J. McMahon
Summary: The study demonstrates that the use of galactose-fermenting adjunct cultures can effectively reduce gas production by Paucilactobacillus wasatchensis in Cheddar cheese, preventing issues like cracks in the cheese. This is achieved by co-inoculating lactose-negative galactose-positive adjunct cultures with Pa. wasatchensis, leading to a reduction in galactose availability and subsequently limiting the growth of the gas-producing bacteria.
JOURNAL OF DAIRY SCIENCE
(2021)
Review
Food Science & Technology
Agnieszka Zapasnik, Barbara Sokolowska, Marcin Bryla
Summary: Fermentation by lactic acid bacteria is an ancient form of food preservation. Lactic acid bacteria have antimicrobial activity against foodborne pathogens and the ability to neutralize mycotoxin. This activity is mainly due to the production of metabolites such as lactic acid, organic acids, hydroperoxide, and bacteriocins. The use of lactic acid bacteria may provide an alternative to chemical preservatives in biopreservation.
Article
Multidisciplinary Sciences
Babak Haghshenas, Amir Kiani, Saeideh Mansoori, Ehsan Mohammadi-noori, Yousef Nami
Summary: The use of medicinal plants for disease treatment and prevention is gaining attention among researchers. This study focused on the probiotic properties and antibacterial and antifungal activity of silymarin-enriched Lactobacillus bacteria against pathogenic bacteria and Aspergillus flavus. Five strains of bacteria were identified as potential probiotics based on their viability and various characteristics. These strains demonstrated effective antibacterial and antifungal activity against multiple pathogens and A. flavus. Furthermore, the combination of silymarin and probiotics showed a significantly stronger antifungal effect compared to the control group or probiotics alone. The presence of silymarin extract in methanol, DMSO, and PEG enhanced the antagonistic activity of the probiotic strains.
SCIENTIFIC REPORTS
(2023)
Article
Microbiology
Akihiko Suzuki, Miwa Suzuki
Summary: In this study, Lactococcus lactis subsp. lactis was isolated from a stranded Cuvier's beaked whale in Japan, showing highly similar characteristics with the type strain. One strain demonstrated inhibitory activity against Bacillus subtilis subsp. subtilis and Vibrio alginolyticus, possibly due to the production of a nisin-like substance.
Article
Biochemistry & Molecular Biology
Camila Ramao Contessa, Nathieli Bastos de Souza, Guilherme Battu Goncalo, Catarina Motta de Moura, Gabriela Silveira da Rosa, Caroline Costa Moraes
Summary: A bioplastic antibacterial film incorporating bacteriocin was developed for commercial curd cheese, which demonstrated microbial reduction and contributed to reducing contamination of food products with high initial microbial load.
Article
Agricultural Engineering
Eleftheria Papadopoulou, Charlene Vance, Paloma S. Rozene Vallespin, Panagiotis Tsapekos, Irini Angelidaki
Summary: Microbial fermentation combined with inexpensive biomass, such as Saccharina latissima hydrolysate, candy-factory waste, and digestate from full-scale biogas plant, can be used as an alternative to petroleum-based materials for lactic acid production. Lactic acid bacteria, including Enterococcus faecium, Lactobacillus plantarum, and Pediococcus pentosaceus, were able to utilize sugars released from seaweed hydrolysate and candy-waste. Seaweed hydrolysate and digestate also provided nutrients for microbial fermentation. A scaled-up co-fermentation of candy-waste and digestate resulted in a lactic acid concentration of 65.65 g/L and a productivity of 1.37 g/L/hour, demonstrating the successful production of lactic acid from low-cost industrial residues.
BIORESOURCE TECHNOLOGY
(2023)
Review
Food Science & Technology
Luc De Vuyst, Andrea Comasio, Simon Van Kerrebroeck
Summary: This article reviews the fermentation strategies and microbial ecology of sourdough production, with a focus on non-flour ingredients. Different types of sourdough production are classified based on the inoculum used. Traditional recipes for Type 1 sourdough often include non-flour ingredients as a microbial inoculum source or fermentation substrates.
CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION
(2023)
Article
Thermodynamics
Ciro Vasmara, Rosa Marchetti, Domenico Carminati
Summary: This study evaluated the biogas production potential of fermentation wastewaters from two strains of lactic acid bacteria, showing that they are suitable feedstocks for biogas production and can be directly mixed with pig slurry to enhance methane yield and shorten the digestion process. The digestate could also be utilized as crop fertilizer from a renewable source.
Article
Biochemistry & Molecular Biology
Peijun Tian, Ying Chen, Xin Qian, Renying Zou, Huiyue Zhu, Jianxin Zhao, Hao Zhang, Gang Wang, Wei Chen
Summary: The Pediococcus acidilactici strain CCFM6432 has shown psychobiotic potential by improving gut microbial composition, regulating anxiety-like behaviors, and reducing HPA axis hyperactivity. Its key compound for antimicrobial activity was confirmed to be lactic acid, paving the way for potential mental health management during daily life, especially amid the COVID-19 pandemic.
Review
Microbiology
Leon M. T. Dicks, Wian Vermeulen
Summary: Cancer is a major cause of death and illness globally, with various types of cancer showing an increasing trend worldwide. Treatment methods for cancer vary, but commonly include surgery, radiotherapy, and chemotherapy. Recent research has focused on the role of bacteria and their metabolites in cancer treatment.
Article
Agriculture, Multidisciplinary
Annalisa Ricci, Ana Belen Diaz, Camilla Lazzi, Ana Maria Blandino Garrido
Summary: This study explores the use of orange peels as a low-cost raw material for lactic acid production, eliminating the need for commercial enzymes. The enzymes produced during the fermentation of Aspergillus awamori were used for hydrolysis, and the resulting reducing sugars were fermented for lactic acid production. The preliminary results showed promising concentrations of reducing sugars and lactic acid, indicating the potential for further optimization of this approach.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Biochemistry & Molecular Biology
Ana Belen Florez, Lucia Vazquez, Javier Rodriguez, Baltasar Mayo
Summary: This study describes the phenotypic typing and complete genome analysis of a dairy Lactiplantibacillus plantarum strain LL441. LL441 exhibited a wide range of carbohydrate utilization and strong activity of carbohydrate-degrading enzymes. The genome analysis revealed genes involved in carbohydrate utilization, flavor formation, acid and bile resistance, but no virulence genes. The strain also possessed plasmids with genes coding for heavy metal resistance and technologically relevant phenotypes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Biology
Satoshi Higurashi, Sachio Tsukada, Binta Maria Aleogho, Joo Hyun Park, Yana Al-Hebri, Masaru Tanaka, Shunji Nakano, Ikue Mori, Kentaro Noma
Summary: The effects of diet on brain aging and thermotaxis ability of Caenorhabditis elegans have been investigated. Lactobacillus reuteri, a type of lactic acid bacteria, was found to maintain thermotaxis ability in aged animals without affecting their lifespan. This effect is dependent on the DAF-16 transcription factor in neurons.
Article
Multidisciplinary Sciences
Yalda Mahjoory, Reza Mohammadi, Mohammad Amin Hejazi, Yousef Nami
Summary: The potential of two identified probiotic strains, ABRIIFBI-6 and ABRIIFBI-7, to inhibit the growth of aspergilli and reduce aflatoxin availability was investigated. Both strains survived in simulated gastrointestinal conditions and significantly inhibited Aspergillus growth. They also exhibited high auto-aggregation, hydrophobicity, and coaggregation abilities with other bacteria. These findings contribute to the understanding of LAB probiotic potential in dairy products and their use as biocontrol agents against aflatoxin-producing species.
SCIENTIFIC REPORTS
(2023)
Article
Biotechnology & Applied Microbiology
Olga A. Nikiforova, Sergey Klykov, Anna Volski, Leon M. T. Dicks, Michael L. Chikindas
ANNALS OF MICROBIOLOGY
(2016)
Article
Biotechnology & Applied Microbiology
Winschau F. van Zyl, Shelly M. Deane, Leon M. T. Dicks
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
Akihito Endo, Yasuhiro Tanizawa, Naoto Tanaka, Shintaro Maeno, Himanshu Kumar, Yuh Shiwa, Sanae Okada, Hirofumi Yoshikawa, Leon Dicks, Junichi Nakagawa, Masanori Arita
Article
Microbiology
Jayesh J. Ahire, Deon P. Neveling, Leon M. T. Dicks
CURRENT MICROBIOLOGY
(2015)
Article
Biotechnology & Applied Microbiology
Martin B. Bezuidenhout, DimitarM. Dimitrov, Anton D. van Staden, Gert A. Oosthuizen, Leon M. T. Dicks
BIOMED RESEARCH INTERNATIONAL
(2015)
Article
Biotechnology & Applied Microbiology
Martin B. Bezuidenhout, Anton D. van Staden, Gert A. Oosthuizen, Dimitar M. Dimitrov, Leon M. T. Dicks
BIOMED RESEARCH INTERNATIONAL
(2015)
Article
Biotechnology & Applied Microbiology
Basit Yousuf, Jayesh J. Ahire, Leon M. T. Dicks
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2016)
Article
Biotechnology & Applied Microbiology
Leon M. T. Dicks, Marlie Botha, Ben Loos, Carine Smith
ANNALS OF MICROBIOLOGY
(2015)
Article
Multidisciplinary Sciences
Jayesh J. Ahire, Deon P. Neveling, Melanie Hattingh, Leon M. T. Dicks
Article
Biotechnology & Applied Microbiology
Jayesh J. Ahire, Leon M. T. Dicks
PROBIOTICS AND ANTIMICROBIAL PROTEINS
(2015)
Review
Microbiology
Leon M. T. Dicks
Summary: The human gut contains almost 3000 microbial species, primarily bacteria, which produce quorum sensing molecules that influence the gut microbiome and communicate with the host. These molecules have a significant effect on our physiological and mental health.
Review
Microbiology
Leon M. T. Dicks, Wian Vermeulen
Summary: Cancer is a major cause of death and illness globally, with various types of cancer showing an increasing trend worldwide. Treatment methods for cancer vary, but commonly include surgery, radiotherapy, and chemotherapy. Recent research has focused on the role of bacteria and their metabolites in cancer treatment.
Review
Microbiology
Leon M. T. Dicks
Summary: Gut bacteria communicate with the central nervous system through the production of specific metabolic compounds and the transmission of signals via the vagus nerve. The gut microbiota also influences the central nervous system by controlling the regulation and development of gut neurons. Additionally, the metabolites produced by gut bacteria interact with intestinal epithelial cells and neurons, affecting the synthesis and degradation of neurotransmitters.
Article
Microbiology
Francesco Salini, Lucilla Iacumin, Giuseppe Comi, Leon M. T. Dicks
Summary: Bacteriocins are proteinaceous toxins produced by bacteria and archaea, which have antimicrobial activity against closely related species. In this study, a new bacteriocin gene cluster was discovered, providing insights into understanding the production mechanism of thermophilin 13.
Review
Microbiology
Leon M. T. Dicks
Summary: This article summarizes factors affecting the colonization of C. difficile and the pathogenicity of toxins TcdA and TcdB, and evaluates different approaches for the treatment of CDI.
