Results 71 to 80 of about 3,441 (180)

Acetylation Activity and Specificity of Peptidoglycan Deacetylase BsPdaC Acting in Reverse on Chitooligosaccharides

ChemCatChem, Volume 18, Issue 10, 27 May 2026.
Bacillus subtilis PdaC is the first peptidoglycan deacetylase able to act in reverse, acetylating a glucosamine oligomer (chitopentaose) with a pattern of acetylation mirroring the natural deacetylation reaction with unique final regioselectivity, acetylating all but the reducing end of D5.
Karel Hernández, Laia Grifoll‐Romero, Margalida Artigues, Antoni Planas   +3 more
wiley   +1 more source

Construction of an Integrated Janus PVA/EW Hybrid Membrane via Unidirectional Nanopore Dehydration for Synergistic Periodontal Regeneration

Macromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.
A Janus PVA/egg white (PVA/EW) hybrid membrane is constructed via a facile, green unidirectional nanopore dehydration (UND) technology. This one‐step process creates an integrated bilayer: a dense layer that blocks fibroblasts, and a bioactive porous layer enriched with EW.
Xiang Guo, Xue Xu, Hao Liu, Meng Zhang, Fan‐Ting Meng, Hai‐Yan Wang, Yu‐Qing Zhang   +6 more
wiley   +1 more source

Lipid‐Based Nanoparticles for Time‐Release Delivery of Flavonoids

Journal of Food Process Engineering, Volume 49, Issue 5, May 2026.
Lipid‐based nanocarriers enhance the stability, bioavailability, and controlled release of flavonoids. These systems improve encapsulation efficiency and protection against degradation, highlighting their potential for food and nutraceutical applications.
Ziane da Conceição das Mercês, Viviani Ruffo de Oliveira, Simone Hickmann Flôres, Alessandro de Oliveira Rios   +3 more
wiley   +1 more source

Impact of chitosan oligosaccharide on microbiota-metabolite-immune axis in natural aging

Frontiers in Nutrition
Natural aging involves an imbalance in gut bacteria, changes in metabolism, and mild ongoing inflammation. The integrated impact of chitosan oligosaccharide (COS) on microbiota-metabolite-immune interactions in a physiological (non-accelerated) aging ...
Wei Liu, Pengcheng Shi, Yunyu Xiao, Xi Yang, Baoming Tian   +4 more
doaj   +1 more source

Epigenetic regulation of mycorrhizal symbioses: from plastic responses to transgenerational legacies

New Phytologist, Volume 250, Issue 3, Page 1438-1452, May 2026.
Summary Mycorrhizal symbioses represent one of the most widespread and ecologically significant plant–microbe interactions, shaping plant nutrition, stress resilience, and ecosystem functioning. Beyond their role in nutrient exchange and systemic defense, growing evidence suggests that these symbioses also influence plant plasticity within and across ...
Gerson Beltrán‐Torres, Henry J. De La Cruz, Stéphane Maury, Martina Janoušková, Claire Veneault‐Fourrey, Vít Latzel, Pierre‐Emmanuel Courty, Harold Duruflé, Jörg Tost, Iris Sammarco   +9 more
wiley   +1 more source

Computer‐Based Design to Improve Bacillus thuringiensis Chitinase for Industrial Applications

ChemistryOpen, Volume 15, Issue 4, April 2026.
Hotspot‐guided mutagenesis identifies Gly291 as a key catalytic determinant in Bacillus thuringiensis chitinase. Substitution with alanine improves substrate accommodation and lowers the activation barrier by ∼47%, reducing it from 94.66 to 49.83 kcal/mol. Structural integrity is retained while catalytic efficiency is enhanced, demonstrating a rational
S. G. Sree Agash, G. Chandrasekhar, A. S. Vinutha, S. Akshay, P. Kanishk, R. Rajasekaran   +5 more
wiley   +1 more source

Chitooligosaccharides enzymatic production by Metarhizium anisopliae

Bioprocess and Biosystems Engineering, 2010
The products of chitosan hydrolysis are chitooligosaccharides and are used mainly for medical applications due to their specific biological activities. The objective of this study was to detect and identify the products of enzymatic hydrolysis of chitosan (dimers to hexamers) using a crude extract of chitosanolytic enzymes produced by the fungus ...
Santos, Everaldo Silvino dos, Assis, Cristiane Fernandes de, Araújo, Nathália Kelly, Pagnoncelli, Maria Giovana Binder, Pedrini, Márcia Regina da Silva, Macedo, Gorete Ribeiro de   +5 more
openaire   +3 more sources

Developing Active Bilayer Films Based on Poly(Lactic Acid) and Gelatin or Sodium Caseinate

Polymers for Advanced Technologies, Volume 37, Issue 4, April 2026.
ABSTRACT Bilayer films made from polymers with complementary properties, such as poly(lactic acid) (PLA) and proteins, loaded with active agents allow to produce materials with additional functionality compared to those used in conventional packaging. The objective of this research was the development of bilayer films based on PLA acting as the passive
Beatriz Guevara‐Guerrero, Eva Hernández‐García, Chelo González‐Martínez, Paulo José do Amaral Sobral   +3 more
wiley   +1 more source

Entomopathogenic Potential of Cuticle‐Degrading Enzymes From Bacillus velezensis CE100 in the Biocontrol of Pine Aphid (Eulachnus thunbergii Wilson)

Entomological Research, Volume 56, Issue 4, April 2026.
ABSTRACT Pine aphids are notoriously destructive sap‐sucking pests of pine trees worldwide. We investigated the biocontrol efficacy of Bacillus velezensis CE100 through cuticle‐degrading enzymes, which degrade the cuticular structure of insect pests.
Henry B. Ajuna, Sang‐Jae Won, Jae‐Hyun Moon, Vantha Choub, Su‐In Choi, Ju‐Yeol Yun, Su‐Yeon Lee, Young Sang Ahn   +7 more
wiley   +1 more source

Chitooligosaccharides antagonize the cytotoxic effect of glucosamine

World Journal of Microbiology and Biotechnology, 2011
Chitooligosaccharides (COS) are partially hydrolyzed compounds derived from chitosan that exhibit a number of biological activities, including antitumor, antibacterial and antifungal properties. In this work, we examined the cytotoxicity of pure COS and oligomers A, B and C (solutions composed of different amounts of COS) produced by enzymatic ...
Santos, Everaldo Silvino dos, Assis, Cristiane Fernandes de, Costa, Leandro Silva, Melo-Silveira, Raniere Fagundes, Oliveira, Ruth Medeiros, Pagnoncelli, Maria Giovana Binder, Rocha, Hugo Alexandre Oliveira, Macedo, Gorete Ribeiro de   +7 more
openaire   +3 more sources