Results 51 to 60 of about 2,147 (208)

Design and Synthesis of a Chitodisaccharide-Based Affinity Resin for Chitosanases Purification

open access: yesMarine Drugs, 2019
Chitooligosaccharides (CHOS) have gained increasing attention because of their important biological activities. Enhancing the efficiency of CHOS production essentially requires screening of novel chitosanase with unique characteristics.
Shangyong Li   +4 more
doaj   +1 more source

Efficient Preparation of Chitooligosaccharide With a Potential Chitosanase Csn-SH and Its Application for Fungi Disease Protection

open access: yesFrontiers in Microbiology, 2021
Chitosanase plays a vital role in bioactive chitooligosaccharide preparation. Here, we characterized and prepared a potential GH46 family chitosanase from Bacillus atrophaeus BSS.
Dandan Cui   +4 more
doaj   +1 more source

Multi‐Stimuli‐Responsive Hydrogen‐Bonded Organic Frameworks Nanocarriers Enable Targeted Fungicide Release and Plant Immune Regulation

open access: yesAdvanced Science, EarlyView.
A fluorinated hydrogen‐bonded organic framework nanocarrier (PFC‐1‐F) loaded with PYR and coated with HACC enables multi‐stimuli‐responsive (enzyme/ROS/pH) release at infection sites. Exhibiting targeted antifungal activity against Sclerotium rolfsii, modulating plant antioxidant defense, and demonstrating favorable biosafety across plant, soil, and ...
Guangming Ma   +6 more
wiley   +1 more source

Biodegradation and Prospect of Polysaccharide from Crustaceans

open access: yesMarine Drugs, 2022
Marine crustacean waste has not been fully utilized and is a rich source of chitin. Enzymatic degradation has attracted the wide attention of researchers due to its unique biocatalytic ability to protect the environment. Chitosan (CTS) and its derivative
Shuting Qiu   +9 more
doaj   +1 more source

Enhancing the Secretion Systems: Genetic Engineering of Super Bioagents for Effective Plant Disease Control

open access: yesBiotechnology and Bioengineering, EarlyView.
Genetic engineering (GE) overcomes BCA limits, enabling robust, scalable crop protection. “Super Bioagents” (SBs) use optimized SSs to enhance bioactive molecule delivery. Optimizing SSs enhance precise, sustainable effector deployment for stable disease suppression. SBs use microbiome‐informed design for scalable, next‐gen sustainable crop protection.
Michael Dare Asemoloye
wiley   +1 more source

S100A14 in Tumor‐Derived EVs Targets PIAS3 to Reprogram Astrocytes and Induce Immunosuppressive Microenvironment Promoting Brain Metastasis and Germacrone Reversal Effect

open access: yesAdvanced Science, Volume 13, Issue 39, 13 July 2026.
This study identifies S100A14 in tumor‐derived exosomes as a key driver of brain metastasis. S100A14 targets PIAS3 in astrocytes, activating STAT3 signaling and promoting immunosuppressive MDSCs recruitment via chemokine secretion. Germacrone, a natural compound, binds S100A14 to disrupt this axis, effectively inhibiting brain metastasis with low ...
Qian Feng   +13 more
wiley   +1 more source

Chitosanase基因之大量表現俾生產Chitosan oligosaccharide [PDF]

open access: yes, 2014
Chitosan寡糖具有一些生物活性包括抗菌、免疫調節及抗癌,此種寡糖是以chitosan利用chitosanase水解而來,本研究將由Bacillus subtilis選殖endo-type chitosanase基因,並將此基因在E. coli及B. subtilis表現,我們將分析pre-peptide序列對基因表現能力的影響,也將分析chitosanase的生化性質,以評估所開發的chitosanase用於生產chitosan oligosaccharide的可行性。Chitosan ...
許文輝
core  

Optimization of chitosanase production by Bacillus mojavensis EGE-B-5.2i [PDF]

open access: yes, 2018
Maximum production of industrially important enzymes such as chitosanases through media optimization still holds foremost interest. The present study was conducted to improve chitosanase activity of an indigenous strain identified as Bacillus mojavensis.
Eltem, Rengin   +7 more
core   +1 more source

Bioproduction of Chitooligosaccharides: Present and Perspectives

open access: yesMarine 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

Heterogenously‐expressed chitosanase combining a green ball milling method for enzymatic degradation

open access: yesFood Bioengineering, 2022
Chitooligosaccharides (COSs) and d‐glucosamine (GlcN), the most valuable biomolecules due to their various physiological functions, can be available inexpensively from chitosan by bio‐enzymatic degradation, in which chitosanases play a key role.
Haipeng Su   +4 more
doaj   +1 more source

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