Results 41 to 50 of about 165,219 (191)

Antifungal Activity of Chitosan Oligomers–Amino Acid Conjugate Complexes against Fusarium culmorum in Spelt (Triticum spelta L.)

open access: yesAgronomy, 2020
Fusarium head blight (FHB) is a complex disease of cereals caused by Fusarium species, which causes severe damages in terms of yield quality and quantity worldwide, and which produces mycotoxin contamination, posing a serious threat to public health.
Laura Buzón-Durán   +5 more
doaj   +1 more source

Extraction of chitosan and its oligomers from shrimp shell waste, their characterization and antimicrobial effect [PDF]

open access: yesVeterinary World, 2017
Aim: The present study was performed to utilize the shrimp shell waste for chitin and chitosan production, characterization by Fourier transform infrared (FT-IR) technique and to evaluate the antimicrobial effects of chitosan oligomers produced by ...
Tarun Kumar Varun   +7 more
doaj   +1 more source

The Chitosan Degradation by Ozonation Process to Produce Glucosamine and Oligomers Chitosan [PDF]

open access: yes, 2016
Chitosan is a linier copolymer (1→4)–linked 2-acetamido-2-deoxy-β-D-glucan (GlcNAc) and 2-amino-2-deoxy-β-D-glucan (GlcN) units in varying compositions. It is considered to be non-toxic, reactive and abundant biodegradable material.
Purwanto, Edy, Savitri, Emma
core   +2 more sources

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

Chitosan-based nanoparticles and microparticles [PDF]

open access: yes, 2008
Chitosan-Triphosphate Nanoparticles There is a widespread interest in the use of nano-carriers for drug delivery and chitosan is one of the most sought-after components for designing biocompatible nanoparticles. Here, using a rational experimental design,
Nasti, Alessandro
core   +1 more source

Uncaria tomentosa-Loaded Chitosan Oligomers–Hydroxyapatite–Carbon Nitride Nanocarriers for Postharvest Fruit Protection

open access: yesAgronomy, 2023
Given the risks associated with synthetic fungicides, it is crucial to explore safe and sustainable alternatives. One potential solution is using bioactive natural products (BNPs).
Alberto Santiago-Aliste   +5 more
doaj   +1 more source

Linking Polyelectrolyte Modification and Enzyme‐Catalyzed Phenolic Acid Functionalization of Cellulose Fiber for Functional Foams

open access: yesAdvanced Materials Technologies, EarlyView.
Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil   +4 more
wiley   +1 more source

Crude Enzyme Concentrate of Filamentous Fungus Hydrolyzed Chitosan to Obtain Oligomers of Different Sizes

open access: yes, 2023
Chitosan is a non-cytotoxic polysaccharide that, upon hydrolysis, releases oligomers of different sizes that may have antioxidant, antimicrobial activity and the inhibition of cancer cell growth, among other applications.
Nelson Rosa Ferreira   +5 more
core   +1 more source

In Vitro Antifungal Activity of Composites of AgNPs and Polyphenol Inclusion Compounds against Fusarium culmorum in Different Dispersion Media

open access: yesAgronomy, 2018
Fusarium culmorum is a soil-borne fungus able to cause Fusarium head blight, one of the most important cereal diseases worldwide, which can result in significant yield losses of up to 50% and which jeopardizes food and feed safety due to the mycotoxins ...
Petruta Mihaela Matei   +6 more
doaj   +1 more source

Crab-Eating Monkey Acidic Chitinase (CHIA) Efficiently Degrades Chitin and Chitosan under Acidic and High-Temperature Conditions

open access: yesMolecules, 2022
Chitooligosaccharides, the degradation products of chitin and chitosan, possess anti-bacterial, anti-tumor, and anti-inflammatory activities. The enzymatic production of chitooligosaccharides may increase the interest in their potential biomedical or ...
Maiko Uehara   +7 more
doaj   +1 more source

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