Article
Microbiology
Beatriz del Rio, Esther Sanchez-Llana, Noelia Martinez, Maria Fernandez, Victor Ladero, Miguel A. Alvarez
Summary: Enterococci are a diverse group of Gram-positive, lactic acid bacteria that can be found in various environments, including fermented foods, posing a health threat and hospital-acquired infections due to antimicrobial resistance. Bacteriophages are ideal biotechnological weapons for controlling bacterial growth, but require a combination of phages with different host ranges. The isolation of Enterococcus faecalis-infecting bacteriophages from cheese samples adds to the potential arsenal for bacteriophage-based biocontrol of harmful E. faecalis populations.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Suresh Panthee, Atmika Paudel, Hiroshi Hamamoto, Akihiko Ano Ogasawara, Toshihiro Iwasa, Jochen Blom, Kazuhisa Sekimizu
Summary: Enterococcus faecalis is a common human gut commensal bacterium with potential pathogenic or probiotic properties. Genome sequencing and analysis of the probiotic strain EF-2001 revealed unique characteristics, aiding in the differentiation of different E. faecalis strains.
Article
Food Science & Technology
Lulu Han, Iwao Sakane, Masashi Mizuno
Summary: The combination of IC-1 and luteolin has shown synergistic anti-allergic effects by reducing IgE content and inhibiting mast cell degranulation during the allergy state.
Article
Agriculture, Multidisciplinary
Wenfan Cao, Julie Aubert, Marie-Bernadette Maillard, Francoise Boissel, Arlette Leduc, Jean-Luc Thomas, Stephanie-Marie Deutsch, Benedicte Camier, Ali Kerjouh, Sandrine Parayre, Marielle Harel-Oger, Gilles Garric, Anne Thierry, Helene Falentin
Summary: The formation of cheese flavor is mainly due to volatile compounds produced by microorganisms, and fine-tuning cheese-making process parameters can modulate the cheese volatilome by influencing specific bacterial metabolisms.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2021)
Article
Biotechnology & Applied Microbiology
Daisuke Fukuda, Yuji Aso, Cirilo Nolasco-Hipolito
Summary: Enterococcus faecalis strain DB-5 is a newly isolated lactic acid bacterium that can produce organic acid from various carbohydrate sources. It has excellent potential for lactic acid fermentation (LAF) and can efficiently convert sucrose to lactic acid at high temperatures. These findings provide valuable information for understanding the functional properties of future high-temperature LAFs from biomass resources.
JOURNAL OF BIOSCIENCE AND BIOENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Dusit Promrug, Kanjana Wittayacom, Nantipan Nathapanan, Ha Thanh Dong, Panumart Thongyoo, Sasimanus Unajuk, Onrapak Reamtong, Usa Boonyue, Amornrat Aroonnual, Tatsuo Shioda, Krit Thirapanmethee, Dumrongkiet Arthan
Summary: LAB isolated from red sea bass showed antimicrobial activity against Aeromonas species, and the cocultured Enterococcus faecium induced the highest antimicrobial activity. This finding is important for improving bacteriocin production.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Food Science & Technology
Ivana Hyrslova, Antonin Kana, Vera Kantorova, Gabriela Krausova, Iva Mrvikova, Ivo Doskocil
Summary: In this study, the ability of inorganic selenium to accumulate and transform into different selenium species and Se nanoparticles in bacteria from three different genera was evaluated. The cytotoxicity of selenized strains to human adenocarcinoma cells, as well as the effects on antioxidant activity and cell surface hydrophobicity, were determined. The results suggest that these bacterial strains have the potential to be used in selenium-enriched functional foods.
JOURNAL OF FUNCTIONAL FOODS
(2022)
Review
Cardiac & Cardiovascular Systems
Xuewen Duan, Xingguang Liu, Zhenzhen Zhan
Summary: Mortality from heart diseases, especially ischemic cardiomyopathy, remains the highest in the world. While adult mammalian hearts have limited regenerative capacity, early neonatal hearts possess stronger regenerative ability. Promoting endogenous regeneration of adult mammalian cardiomyocytes is crucial for improving the prognosis of heart failure patients and finding effective therapeutic strategies. This review focuses on the role of energy metabolism in cardiac regeneration to provide insights into manipulating heart regeneration and promoting heart repair after injury.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Biochemistry & Molecular Biology
Shumao Cui, Jie Jiang, Bowen Li, R. Paul Ross, Catherine Stanton, Jianxin Zhao, Hao Zhang, Bo Yang, Wei Chen
Summary: This study investigated the effects of short-term administration of different genotypes of P. pentosaceus on physiological characteristics, inflammation, and intestinal microecology in mice. Results showed that various strains of P. pentosaceus had different effects on gut microbiota and inflammation, with some strains being harmful while others beneficial. The presence of different genotypes of bacteriocin may explain the variations among strains, providing theoretical support for further exploring the probiotic effects of P. pentosaceus.
Article
Dentistry, Oral Surgery & Medicine
Amira Samir Salem, Geoffrey R. Tompkins, Peter R. Cathro
Summary: This study compared the alkaline tolerance and biofilm-forming capabilities of different strains of Enterococcus faecalis in different environments when supplied with glucose or glycerol as fermentable supplements. The results showed that elevated alkalinity increased the lag phase and doubling time, while biofilm formation and metabolic activity varied among strains. In general, biofilm formation was enhanced with glucose and at pH 8, and glycerol increased the metabolic activity of biofilms at pH 11. Overall, glycerol was found to be an alternative energy source that increased the metabolic activity of E. faecalis under alkaline treatment conditions in nutrient-deprived environments.
JOURNAL OF ENDODONTICS
(2022)
Article
Food Science & Technology
Paria Rahnama Vosough, Mohammad Reza Edalatian Dovom, Mohammad Bagher Habibi Najafi, Ali Javadmanesh, Baltasar Mayo
Summary: This study focuses on the production of polysaccharides derived from Iranian Kishk by isolating and culturing lactic acid bacteria. The optimal conditions for EPS production were determined using optimization design methods, resulting in the identification of three strains with high EPS yield. The EPSs produced by these native LAB strains have potential industrial applications or can be used as functional food ingredients.
Article
Biotechnology & Applied Microbiology
Augchararat Klongklaew, Kridsada Unban, Apinun Kanpiengjai, Pairote Wongputtisin, Punnita Pamueangmun, Kalidas Shetty, Chartchai Khanongnuch
Summary: The study identified a strain, WX1, with high capability to produce optically pure l-lactic acid (l-LA) from different sugars. Optimal cultivation conditions significantly improved l-LA yield, paving the way for practical applications in bioconversion of lignocellulose, particularly glucose-xylose-rich corn stover to l-LA.
FERMENTATION-BASEL
(2021)
Article
Biotechnology & Applied Microbiology
Augchararat Klongklaew, Kridsada Unban, Dharman Kalaimurugan, Apinun Kanpiengjai, Hassan Azaizeh, Linda Schroedter, Roland Schneider, Joachim Venus, Chartchai Khanongnuch
Summary: This study demonstrated the bioconversion of lignocellulosic by-product corn stover to L-lactic acid using specific strains of bacteria. The optimal conditions for the highest sugar release and L-LA production were determined. The purification of L-LA from the culture broth was successfully achieved. This study not only presents a feasible process for L-LA production from corn stover but also provides an alternative approach for solving the problem of haze air pollution caused by improper management of corn production residuals.
FERMENTATION-BASEL
(2023)
Article
Food Science & Technology
Yuehua Jiao, Han Yang, Nditange Shigwedha, Shuang Zhang, Fei Liu, Lanwei Zhang
Summary: This study investigated the effects of different culture conditions on Enterococcus faecalis LD33 and found that respiration-permissive conditions led to increased biomass, higher production of metabolites, and enhanced antimicrobial activities against certain bacteria. The strain also showed better adhesion capability and bile salt tolerance under respiration metabolism. However, its acid tolerance was weaker compared to fermentation conditions. The anti-cancer effect of the strain was not significantly different between the two growth modes, but the supernatant exhibited a higher inhibition effect on cancer cells.
Article
Food Science & Technology
Aylin W. Sahin, Tom Rice, Aidan Coffey
Summary: Leuconostoc citreum, commonly isolated from grain and vegetable fermentations, has seen increased use as a starter culture for various fermentations and food applications. A strain of Lc. citreum, TR116, has been shown to deplete sugar through metabolism, with particular interest in its ability to convert fructose to mannitol. This investigation into the strain's metabolic processes sheds light on its potential for future functionalization of food systems and ingredients.
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
(2021)