Results 41 to 50 of about 59,813 (190)

Can we make Chitosan by Enzymatic Deacetylation of Chitin?

Molecules, 2019
Chitin, an insoluble linear polymer of β-1,4-N-acetyl-d-glucosamine (GlcNAc; A), can be converted to chitosan, a soluble heteropolymer of GlcNAc and d-glucosamine (GlcN; D) residues, by partial deacetylation.
Rianne A. G. Harmsen, Tina R. Tuveng, Simen G. Antonsen, Vincent G.H. Eijsink, Morten Sørlie   +4 more
doaj   +1 more source

Purification and Characterization of Chitin Deacetylase from Colletotrichum lindemuthianum [PDF]

Journal of Biological Chemistry, 1995
Chitin deacetylase (EC 3.5.1.41), the enzyme that catalyzes the hydrolysis of acetamido groups of N-acetyl-D-glucosamine in chitin, has been purified to homogeneity from the culture filtrate of the fungus Colletotrichum lindemuthianum and further characterized.
I, Tsigos, V, Bouriotis
openaire   +2 more sources

Bioproduction of Chitooligosaccharides: Present and Perspectives

Marine Drugs, 2014
Chitin and chitosan oligosaccharides (COS) have been traditionally obtained by chemical digestion with strong acids. In light of the difficulties associated with these traditional production processes, environmentally compatible and reproducible ...
Woo-Jin Jung, Ro-Dong Park
doaj   +1 more source

Purificação e caracterização da quitinase de uva (Vitis vinífera L. cv Red Globe) para a produção de quitosana a partir de quitina de camarão

Química Nova, 2010
Chitinase is produced by a wide variety of plants as a defense against peste attacks. In this study, grape chitinases were purified 16 times by fractionation in 80% ammonium sulfate followed by dialysis and filtration.
Laidson Paes Gomes, Carlos Ivan Ribeiro de Oliveira, Márcia Cristina da Silva, Cristina Tristão de Andrade, Eduardo Mere Del Aguila, Joab Trajano Silva, Vânia M. Flosi Paschoalin   +6 more
doaj   +1 more source

Transcriptomic and proteomic signatures underlying nymphal adaptation and foam production in the forage pest Mahanarva spectabilis

Insect Molecular Biology, Volume 35, Issue 5, Page 556-575, October 2026.
RNA‐seq and Batelli gland proteomics of fifth‐instar Mahanarva spectabilis nymphs reveal transcripts and proteins associated with xylem feeding, foam production and environmental interaction. Functional annotation identified genes involved in osmoregulation, detoxification, chemosensation and stress responses, while proteomic analysis confirmed ...
Monique da Silva Bonjour, Angelo José Rinaldi, Eulálio Gutemberg Dias dos Santos, Gabriely Teixeira Bhering Faria, Ana Márcia Escocard de Azevedo Manhães, Jorge Fernando Pereira, Alexander Machado Auad, Maria Goreti de Almeida Oliveira, Humberto Josué de Oliveira Ramos   +8 more
wiley   +1 more source

Insights Into the Role of Lysine Acetylation of Non‐Histone Proteins in Plant Immunity

Plant, Cell &Environment, Volume 49, Issue 10, Page 7604-7618, October 2026.
ABSTRACT Plant immunity is regulated by numerous transcriptional and posttranslational mechanisms. Among these, lysine acetylation, which is controlled by lysine acetyltransferases (KATs) and lysine deacetylases (KDACs), has been extensively studied, particularly in the context of epigenetic regulation through histone acetylation.
Jérémy Villette, Chloé Ilbert, Sébastien Aimé, Hoai‐Nam Truong, Marielle Adrian, Stéphane Bourque   +5 more
wiley   +1 more source

DAMPs, PAMPs, and Alarmins: From Mechanism to Therapy

MedComm, Volume 7, Issue 9, September 2026.
This review synthesizes the expanding biology of PAMPs and DAMPs, from their molecular sources and sensing mechanisms to regulatory networks that govern inflammation and homeostasis. Spanning from classical immune activation to trained immunity and interorgan communication, we highlight the interplay between PAMPs and DAMPs and their context‐dependent ...
Xuanxuan Yu, Yuqin Jin, Baochao Li, Jie Deng, Yiwen Zhou, Jinglun Zhang, Huang Li   +6 more
wiley   +1 more source

The Chitin Connection

mBio, 2012
Chitin, a polymer of N-acetylglucosamine, is an essential component of the fungal cell wall. Chitosan, a deacetylated form of chitin, is also important in maintaining cell wall integrity and is essential for Cryptococcus neoformans virulence.
David L. Goldman, Alfin G. Vicencio
doaj   +1 more source

Tissue‐Resident Macrophage in Inflammation and Cancer

MedComm, Volume 7, Issue 9, September 2026.
Opposing macrophage functions in inflammation and cancer converge on shared mechanistic nodes, informing cross‐disease therapeutic strategies. ABSTRACT Tissue‐resident macrophages (TRMs) are long‐lived immune cells strategically distributed across organs, where their functional plasticity enables both homeostatic maintenance and pathological ...
Siyuan Huang, Jiangbo Fan, Wenyi Liu, Di Liu, Rui Wang, Yuanyang Wang, Jianhui Sun, Huacai Zhang, Qingli Cai, Zhe Xu, Fang Xu, Jianxin Jiang, Zhen Wang, Ling Zeng   +13 more
wiley   +1 more source

Bioconversion of chitin-containing wastes for the production of enzymes and bioactive materials

, 2011
The exploitation of chitinous materials seems to be an infinite treasure. The oligosaccharides of chitin/chitosan, prepared by hydrolyzing chitin/chitosan with chitinase/chitosanase, have various potential applications in the fields of food, agricultural,
Wang, San-Lang; Liang, Tzu-Wen; Yen, Yue-Horng, Wang, San-lang, 王三郎   +2 more
core   +1 more source