Results 21 to 30 of about 143,615 (211)

Chitin Oligosaccharide and Chitosan Oligosaccharide: Two Similar but Different Plant Elicitors [PDF]

open access: yesFrontiers in Plant Science, 2016
Natural resources have been traditionally used in agriculture by humans. For example, crab and shrimp shell powder has been applied to control crop disease and improve soil fertility (Ha and Huang, 2007). On the other hand, chitin is an important structural component in fungal cell walls and can be degraded by plant chitinases to eradicate fungal ...
Yin, Heng, Du, Yuguang, Dong, Zhongmin
openaire   +3 more sources

ANTIBACTERIAL ACTIVITY OF CHITOSAN AND ITS OLIGOMERS ON SOME PATHOGENIC BACTERIA ISOLATED FROM SOME MILK PRODUCTS [PDF]

open access: yesAssiut Veterinary Medical Journal, 1999
Chitosan and its oligomers N-acetyl chitooligosaccharides and chito-oligosaccharides prepared by deacetylation and chemical hydrolysis, respectively and have a broad antimicrobial spectrum to Gram-positive (Staph.aureus and List.
ELSHERIF WALAA, MANAL AMIN
doaj   +1 more source

Applications and prospects of functional oligosaccharides in pig nutrition: A review

open access: yesAnimal Nutrition, 2023
Oligosaccharides are low molecular weight carbohydrates between monosaccharides and polysaccharides, which consist of 2 to 20 monosaccharides linked by glycosidic bonds.
Nian Liu   +7 more
doaj   +1 more source

Production, Characterization and Application of a Novel Chitosanase from Marine Bacterium Bacillus paramycoides BP-N07

open access: yesFoods, 2023
Chitooligosaccharides (COS), a high-value chitosan derivative, have many applications in food, pharmaceuticals, cosmetics and agriculture owing to their unique biological activities. Chitosanase, which catalyzes the hydrolysis of chitosan, can cleave β-1,
Yuhan Wang   +8 more
doaj   +1 more source

Preparation of Defined Chitosan Oligosaccharides Using Chitin Deacetylases. [PDF]

open access: yesInt J Mol Sci, 2020
During the past decade, detailed studies using well-defined ‘second generation’ chitosans have amply proved that both their material properties and their biological activities are dependent on their molecular structure, in particular on their degree of polymerisation (DP) and their fraction of acetylation (FA). Recent evidence suggests that the pattern
Bonin M   +3 more
europepmc   +5 more sources

Research Progress on Preparation of Marine Oligosaccharides by Enzymatic Method

open access: yesShipin gongye ke-ji, 2023
Marine oligosaccharides, which are prepared by degradation of marine polysaccharides, are carbohydrate compounds composed of two to ten monosaccharide residues.
Zixiang YANG   +9 more
doaj   +1 more source

Gold nanoparticles with chitosan, N-acylated chitosan, and chitosan oligosaccharide as DNA carriers [PDF]

open access: yesNanoscale Research Letters, 2019
Currently, gold nanoparticles have found applications in engineering and medical sciences, taking advantage from their properties and characteristics. Surface plasmon resonance, for instance, is one of the main features for optical applications and other physical properties, like high density, that represents the key for cellular uptake.
Paulina Abrica-González   +6 more
openaire   +3 more sources

Secondary Metabolism Rearrangements in Linum usitatissimum L. after Biostimulation of Roots with COS Oligosaccharides from Fungal Cell Wall

open access: yesMolecules, 2022
In vitro culture of flax (Linum usitatissimum L.) was exposed to chitosan oligosaccharides (COS) in order to investigate the effects on the growth and secondary metabolites content in roots and shoots.
Redouan Elboutachfaiti   +10 more
doaj   +1 more source

Research progress on effect of chitosan oligosaccharides on physiological activity of aquatic animals

open access: yesSiliao yanjiu, 2023
As a new green feed additive, chitosan oligosaccharide can significantly enhance the immune ability of aquatic animals, improve the activity of immune enzymes such as LZM and SOD, reduce the expression of inflammatory factors such as TNF and AIF, improve
HU Rui-tong   +7 more
doaj  

The Positive Correlation of the Enhanced Immune Response to PCV2 Subunit Vaccine by Conjugation of Chitosan Oligosaccharide with the Deacetylation Degree

open access: yesMarine Drugs, 2017
Chitosan oligosaccharides (COS), the degraded products of chitosan, have been demonstrated to have versatile biological functions. In primary studies, it has displayed significant adjuvant effects when mixed with other vaccines.
Guiqiang Zhang   +7 more
doaj   +1 more source

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