Chemphyschem
September 2024
Cyclopentanone is a potential bio-fuel which can be produced from bio-mass. Its gas phase dissociation chemistry has attracted several experimental and theoretical investigations. In the photochemical and thermal decomposition studies of cyclopentanone, ethylene and carbon monoxide were found to be dominant reaction products along with several other compounds in smaller quantities.
View Article and Find Full Text PDFGum ghatti, popularly known as Indian gum and obtained from , is a complex high-molecular-weight, water-soluble, and swellable nonstarch polysaccharide comprised of magnesium and calcium salts of ghattic acids and multiple monosugars. Unlike other nontimber forest produce, gums ghatti is a low-volume but high-value product. It has several applications and is widely used as food, in pharmaceuticals, and for wastewater treatment and hydrogel formation, and it has attracted a great deal of attention in the fields of energy, environmental science, and nanotechnology.
View Article and Find Full Text PDFLewis-acid cascade reactions promoted by BF·OEt are reported for the synthesis of highly substituted pyrrolo[1,2-]indoles and congeners of benzofuro[2,3-]indoles. These reactions are highly regio- and diastereoselective towards generating up to five contiguous stereogenic centers, including two vicinal quaternary centers. Furthermore, an established cascade approach and the mechanism proposed herein are well supported by quantum chemistry calculations.
View Article and Find Full Text PDFIsoxazoles are an important class of organic compounds widely employed in synthesis and drug design. Fragmentation chemistry of the parent isoxazole molecule and its substituents has been the subject of several experimental and theoretical investigations. Collision induced dissociation (CID) of isoxazole and its substituents has been studied experimentally under negative ion conditions.
View Article and Find Full Text PDFThe present study was performed to evaluate the efficacy of selected potential nitrogen-fixing cyanobacterial strain (Anabaena sp.), isolated from rhizospheric soil of rice plants on growth, pigments, N uptake, root architecture, and image-based phenotypic traits of rice crop using co-cultivation approach under controlled sand culture conditions. We studied the beneficial interaction of cyanobacterium to rice using sensor image-based Phenomics approach as well as conventional methods.
View Article and Find Full Text PDFOxidative stress generates reactive oxygen species which causes cell damage of living organisms and are normally detoxified by antioxidants. Indirect reports signify the damages caused by reactive oxygen species and neutralized by antioxidant, but the direct evidence to confirm this hypothesis is still unclear. To validate our hypothesis, an attempt was made in a diazotrophic bacterium (Azotobacter chroococcum Avi2) as a biological system, and hydrogen peroxide (HO) and ascorbic acid were used as oxidative stress and antioxidant supplement, respectively.
View Article and Find Full Text PDFIllumina-Miseq-based cyanobiont diversity and biomass were analyzed in six Azolla spp. Results revealed that 93-98% of total operational taxonomic units (OTUs) belong to Nostacaceae followed by Cylindrospermopsis with about 1-6% OTUs. The taxonomy of Azolla-cyanobiont is a long-term debate within the scientific community.
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