Results 61 to 70 of about 4,389 (177)

Isolation and Characterization of Random Citrate Synthase Variants That Increase Acetate Generation by Escherichia coli

Biotechnology and Bioengineering, EarlyView.
ABSTRACT A method to select Escherichia coli citrate synthase variants having reduced activity was developed based initially on the increased generation of acid, observed visually by prolonged color change in the pH indicator bromocresol purple. Five hundred fifty‐two potential variants were isolated and each were cultured on glucose as sole carbon ...
Jeffrey K. Dodelin, Ronnie L. Fulton, Abigail E. Rose, Mark A. Eiteman   +3 more
wiley   +1 more source

TRP89 IN THE LID OF HUMICOLA-LANUGINOSA LIPASE IS IMPORTANT FOR EFFICIENT HYDROLYSIS OF TRIBUTYRIN

, 1994
To determine whether Trp89 located in the lid of the lipase (EC 3.1.1.3) from Humicola lanuginosa is important for the catalytic property of the enzyme, site-directed mutagenesis at Trp89 was carried out.
SVENDSEN, A, HULT, K, PATKAR, S, HOLMQUIST, M, MARTINELLE, M,, CLAUSEN, IG   +5 more
core   +1 more source

Schülerexperimente zur Synthese naturidentischer, geruchsaktiver Ester im Mikromaßstab durch alkalisch katalysierte Umesterung von Glyceriden

CHEMKON, EarlyView.
In diesem Beitrag wird ein einfaches Schülerexperiment vorgestellt, bei dem durch Umesterung von Triacylglyceriden mit n‐Alkanolen im Mikromaßstab geruchsaktive Alkylalkanoate hergestellt werden. Die Reaktion erfolgt alkalisch katalysiert bei Raumtemperatur in kleinen Gefäßen; es entstehen flüchtige Ester mit charakteristischen Frucht‐ und ...
Horst Klemeyer
wiley   +1 more source

Effects of Dietary Bacillus coagulans and Tributyrin on Growth Performance, Serum Antioxidants, Intestinal Morphology, and Cecal Microbiota of Growing Yellow-Feathered Broilers

Animals, 2023
This study investigated the impact of Bacillus coagulans (BC) and tributyrin (TB) supplementation on the growth performance, serum antioxidant capacity, intestinal morphology, and cecal microbiota of yellow-feathered broilers.
Jinwang Hou, Lina Lian, Lizhi Lu, Tiantian Gu, Tao Zeng, Li Chen, Wenwu Xu, Guoqin Li, Hongzhi Wu, Yong Tian   +9 more
doaj   +1 more source

Crystal structure and biochemical analysis of the polyester‐degrading carboxylesterase SM0281 from the symbiotic legume‐associated rhizobacterium Sinorhizobium (Ensifer) meliloti

The FEBS Journal, EarlyView.
The microbial degradation of synthetic polyesters such as polyethylene terephthalate (PET) is mediated by diverse α/β‐hydrolases, many of which remain poorly characterized. In this study, we investigated the α/β‐hydrolase SM0281 from Sinorhizobium meliloti and found that it exhibits robust carboxylesterase and polyesterase activities toward PET, PCL ...
Sofia Lemak, Anna N. Khusnutdinova, Peter J. Stogios, Elena Evdokimova, Alexei Savchenko, Peter N. Golyshin, Elizabeth A. Edwards, Alexander F. Yakunin   +7 more
wiley   +1 more source

Dietary Tributyrin Administration Improves Intestinal Morphology and Selected Bacterial and Short-Chain Fatty Acid Profiles in Broilers Under an Isocaloric Feeding Regime

Frontiers in Microbiology, 2021
The current study was conducted to investigate the effect of dietary tributyrin (TB) administration on the intestinal and growth performances in Arbor Acres (AA) broilers under an isocaloric feeding regime. A total of 540 day-old healthy AA broilers were
Qunbing Hu, Qunbing Hu, Qunbing Hu, Fugui Yin, Fugui Yin, Baocheng Li, Yuming Guo, Yulong Yin   +7 more
doaj   +1 more source

Short‐Chain Fatty Acids: Microbial Metabolites Driving Gut‐Eye Axis Signaling

Comprehensive Physiology, Volume 16, Issue 5, October 2026.
Short‐chain fatty acids generated by gut microbial fermentation link diet to ocular physiology via the gut–eye axis. Through systemic distribution, these metabolites regulate GPCR signaling, epigenetic pathways, inflammation, and angiogenesis, shaping retinal homeostasis and highlighting therapeutic potential in ocular vascular and inflammatory ...
Aleah J. Brokemond, Ronny Amamoo, Fapianey J. Alexandre, Sewedo B. Ajisegiri, Menaka C. Thounaojam, Pamela M. Martin, Ravirajsinh N. Jadeja   +6 more
wiley   +1 more source

Serotypic and Genomic Diversity of Vibrio anguillarum in Rainbow Trout Farms in Turkey: Implications for Vibriosis Control and Vaccine Candidate Selection

Journal of Fish Diseases, Volume 49, Issue 10, October 2026.
ABSTRACT Outbreaks of vibriosis caused by Vibrio anguillarum are a persistent constraint on rainbow trout (Oncorhynchus mykiss) aquaculture. However, information on the population structure of field strains in Turkey has been lacking. Here, we report the first systematic serotypic, proteomic, and genomic characterization of 23 V.
Soner Altun, Muhammed Duman, Jesús L. Romalde, Nihed Ajmi, Gorkem Tasci, Cuneyt Ozakin, Nazmiye Ulku Tuzemen, Bekir Akça, Sebahattin Ergün, Sevdan Yılmaz, Izzet Burcin Saticioglu   +10 more
wiley   +1 more source

Dietary Supplementation With Lily Bulb Core Extract Improves Feed Efficiency, Meat Quality, and Intestinal Health in Yellow‐Feathered Broilers

Food Science &Nutrition, Volume 14, Issue 9, September 2026.
Dietary lily bulb core extract improved feed efficiency, meat quality, and intestinal health in yellow‐feathered broilers. Supplementation at 600 mg/kg produced the most consistent overall benefits, enhancing average daily gain and the feed conversion ratio while reducing cooking loss in both breast and leg muscles.
Jiawei Tan, Jiahui Yin, Xiqing Fan, Linyu Zhang, Chenxia Xia, Shaodi Sun, Xiaoyu Mi, Yunhai Hu, Jianguo Zeng, Wei Xiang, Hongqi Xie   +10 more
wiley   +1 more source

Brazilian Red Propolis Nanoparticles: In Vitro Anticancer Effects in Female‐Associated Malignancies and In Vivo Toxicity in an Alternative Model

Journal of Biomedical Materials Research Part A, Volume 114, Issue 9, September 2026.
ABSTRACT This study explores the development and characterization of polymeric nanoparticles encapsulating Brazilian red propolis extract (BRPE) for application in ovarian (OVCAR‐3) and breast (MDA‐MB‐231) cancers. The nanoparticles (NCBRPE), produced by nanoprecipitation, were evaluated for size, polydispersity index (PdI), zeta potential, and ...
Isabela A. Justino, Caroline E. A. Botteon, Iasmin R. S. Ferreira, Maria Eugênia B. Rocha, Andréia Marincek, Gláucia Rigotto Caruso, Jennyfer A. Aldana‐Mejia, Marcia Regina von Zeska Kress, Jairo K. Bastos, Priscyla D. Marcato   +9 more
wiley   +1 more source