The present study deals with the antimicrobial, antioxidant, and functional group analysis of Heliotropium bacciferum extracts. Disc diffusion susceptibility method was followed for antimicrobial assessment. Noteworthy antimicrobial activities were recorded by various plant extracts against antibiotic resistant microorganisms. Plant flower extracts antioxidant activity was investigated against ...

The genus Astragalus is a rich source of a variety of biologically active compounds including phenols, saponins, polysaccharides and essential oils. The present study was conducted to determine ontogenetic variation of the volatile organic compounds as well as total phenolic contents and antioxidant activity in leaves of A. compactus. The leaves of plant were harvested at vegetative, flowering ...

It has been recently reported that catalytic quantities of crystalline catalase, in the presence of hydrogen peroxide, can rapidly oxidize a variety of molecules larger than hydrogen peroxide and aliphatic alcohols (1). The qualitative experiments have shown that oc-naphthol and p-phenylenediamine are condensed by oxidative coupling to indophenol purple; p-aminobenzoic acid, sulfathiazole, adre...

An extracellular lignin-degrading enzyme from the basidiomycete Phanerochaete chrysosporium Burdsall was purified to homogeneity by ion-exchange chromatography. The 42,000-dalton ligninase contains one protoheme IX per molecule. It catalyzes, nonstereospecifically, several oxidations in the alkyl side chains of lignin-related compounds: C(alpha)-C(beta) cleavage in lignin-related compounds of t...

Primary and secondary alcohols were formylated selectively in the presence of phenols by stirring with chloral in acetone over anhydrous K2CO3 at ambient temperatures in high yields. O-Formylation could be the method of choice for protecting an alcoholic group in a complex synthetic sequence because deformylation can be effected selectively in the presence of acetate or other ester protecting g...

Acanthus ilicifolius has long history of medicinal plant belong to the family Acanthaceae. In the present study, ethanolic extract of A. ilicifolius showed antitumour potential against HepG2 cell line induced hepatocarcinoma in mice. The phytochemical analysis were studied by using strandard methods. The heptocarcinoma mice were orally treated with extract of A.ilicifolius (500 mg/kg B.W). The ...

a-Ketoglutarate-dependent enzymes catalyze many important biological oxidation/oxygenation reactions. Iron(IV)–oxo intermediates have been established as key oxidants in these oxidation reactions. While most reported model iron(II)–a-keto acid complexes exhibit stoichiometric reactivity, selective oxidation of substrates with dioxygen catalyzed by biomimetic iron(II)–a-keto acid complexes remai...

Achillea moschata Wulfen (Asteraceae) is an endemic species growing on the Alps and traditionally used in several medicinal remedies. For its aromatic properties, it is also collected for food purposes. Chemical content and biological activity of A. moschata oil are not extensively studied. We investigated whether the different lithological and geomorphological features of two alpine areas incl...

Polygonum capitatum (Polygonaceae) exists in rural areas of Southwest China and some other Asian countries. Its aerial part or whole herbal plant has been used as a Miao ethnomedicine against urinary system diseases, infections, pyelonephritis, diarrhea, so on. The progress phytochemical research on P. over the past decades is summarized. Two hundred three chemical constituents that have isolat...

Lignin is an important renewable source of phenolic products. In this study, alkali lignin was depolymerized to produce phenolic compounds. The effects of catalyst, solvent, reaction time, and reaction temperature on the yields of liquid products and volatile fractions were investigated in detail. Compared with the solvents water and octane, alcohols can significantly promote depolymerization o...