Results 41 to 50 of about 15,268,560 (303)
Brazilian Journal of BiologyThe Bidder's organ and ovary of the Brazilian toad Bufo ictericus were studied by light microscopy, using hematoxylin-eosin (HE) and periodic acid Schiff (PAS) staining.
C. F. Farias +2 more
doaj +1 more source
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
Poultry Science, 2023 : This study aimed to assess the influence of glycosaminoglycan (chondroitin and glucosamine sulfates) supplementation in the diet of broilers on the expression of matrix metallopeptidase 9 (MMP-9) and metallopeptidase inhibitor 2 (TIMP-2) genes, the ...
Julyana M.S. Martins +8 more
doaj +1 more source
Structural and functional characterization of chitinase from carnivorous plant Drosera adelae
FEBS Open Bio, EarlyView.A class I chitinase from the carnivorous plant Drosera adelae was expressed and purified using a yeast system, revealing high enzymatic activity. Structural analyses of the catalytic and chitin‐binding domains identified key tyrosine residues involved in substrate binding, offering insights into the enzyme's adaptation for insect digestion.
Kazunari Yoneda +7 more
wiley +1 more source
Angewandte Chemie, EarlyView.The lipopolysaccharide (LPS) of Segatella copri is a structurally unique, immunomodulatory glycoconjugate. Combining mass spectrometry (MS), nuclear magnetic resonance (NMR), and cytometry by time‐of‐flight (CyTOF), we uncover a rough‐type LPS with reduced TLR4 agonism and selective monocyte effects, further highlighting the key role of LPS chemistry ...
Luca De Simone Carone +17 more
wiley +2 more sources
Food Industrial Production of Monosaccharides Using Microbial, Enzymatic, and Chemical Methods
Fermentation, 2019 Most monosaccharides in nature are hexoses, which have six carbon atoms; the most well-known hexose is d-glucose. Various hexoses with distinct characteristics can be produced from inexpensive polysaccharides for applications in the food industry ...
Tomoya Shintani
doaj +1 more source
The hemostatic properties of chitosan in oral surgery
Biomedical and Biotechnology Research Journal, 2020 Chitosan (CS) belongs to the natural linear aminopolysaccharide family. It is formed by a repetition of D-glucosamine units (deacetylated units) and a smaller number of N-acetyl-D-glucosamine units. Their distribution is casual.
Rocco Franco +4 more
doaj +1 more source
Electrochemistry, 2023 Oligosaccharides and polysaccharides containing glucosamine are abundant and essential for many living species, including plants, fungi, insects, and other organisms.
Md Azadur RAHMAN +5 more
doaj +1 more source
Metal Complexes of D-Glucosamine and its Derivatives. VII. Metal Complexes of D-Glucosaminic Acid
Chemical and Pharmaceutical Bulletin, 1966 Stability constants, log K1 and log K2, of complexes of D-glucosaminic acid with Cu2+, Ni2+, Pb2+, Zn2+, Co2+, Cd2+, and Mn2+were determined by pH titration method. Copper complexes were found to be the most stable and the contribution of OH groups of glucosaminic acid to the complex formation was observed.
Zenzo Tamura +2 more
openaire +4 more sources
BioMed Research International, 2014 It is well known that D-glucosamine hydrochloride (DGL) has a variety of biological activities and is regarded as a nutritional supplement effective in improving various disorders, including osteoarthritis and atherosclerosis.
K. Kaida +3 more
semanticscholar +1 more source