Standardization of an herbal preparation – <i style="">Vṛddhadaruka mula cur</i><i style="">ṇa</i> [<i>Argyreia nervosa</i> (Burm.f.) Boj.]<i style=""> </i>root powder<i></i>

612-616Vṛddhadaru (Argyreia nervosa (Burm.f.)Boj.) is an Ayurvedic herb used in the management of vitiated conditions of Kapha, inflammations, arthritis, synovitis, seminal weakness, etc. Based on classical Ayurvedic textual indications and recent pharmacological studies root powder was selected to study on Filarial patients. Before conducting the clinical trials this herbal powder was subjected to certain chemical studies to find out the pH, ash value, extractive values, HPTLC, etc. for standardization of the drug

Analytical study of Kuberaksha/Kantaki Karanja Patra Churna [Caesalpinia Bonduc (L.) Roxb. leaf powder]

Caesalpinia bonduc (L.) Roxb. (Kuberaksha) is an Ayurvedic herb used in the management of malaria, liver disorders, worms, edematous conditions, etc. Based on classical Ayurvedic textual indications and recent pharmacological studies, its leaf powder was selected for studying its effect clinically on filaria. Before conducting the clinical trails, this leaf powder was subjected to certain chemical studies to find the pH, ash value, extractive values, High Performance Thin Layer Chromatography (HPTLC), etc. for standardization of the drug

Efficacy of Silica Solubilizing Bacteria as Plant Growth Promoting Rhizobacteria and Their Biochemical Characteristics

Twenty eight isolates of silica solubilising bacterial inoculants were collected from rhizosphere soils of rice crop in Kurnool, Prakasam, Guntur and Anantapur districts of Andhra Pradesh by using insoluble source of silica. These isolates were verified for plant growth promoting rhizobacteria (PGPR) activity and then subjected biochemical tests in the Department of Agricultural microbiology, Advanced Post Graduate Centre, ANGRAU, Lam, Guntur, Andhra Pradesh, India. Two isolates, SiKPP-1 (Silica solubilizing isolate from Kurnool district, Pamulapadu Mandal and Pamulapadu Village - 1) &amp; SiPYY-3 (Silica solubilizing isolate from Prakasam district, Yerragondapalem Mandal and Yerragondapalem Village - 3) showed the highest efficiency in the aspects of silica solubilization, phosphate solubilization, potassium release, exopolysaccharide production activity, indole acetic acid production activity, siderophore production activity and biochemical tests including starch hydrolysis, Hydrogen sulphide test, Indole production, Catalase test, Oxidase test, Gelatine liquification, Methyl red test, Vogues Proskauer test, Citrate Utilization and Ammonia production. Therefore these two isolates (SiKPP-1&amp;SiPYY-3) were selected for further pot and field studies in direct sown paddy crop

Diterpenes from the brown alga Dictyota divaricata of the indian ocean

The brown alga Dictyota divaricata from the coasts of the Andaman and Nicobar Islands in the Indian Ocean yielded one known and 11 new diterpenes of which four are dolabellanes, six are dolastanes, and one is a novel aromatic isodolastane. The structures of (1R*,3E,6S*,7E,11S*)-6- hydroxydolabella-3,7,12-triene, (1S*,3S*,4R*, 6S*,7E,11S*)-3,4-epoxy-6- hydroxydolabella-7,12-diene, (1R*,3Z,7E,11S*,12S*)-12-hydroxydolabella-3,7- dien-2-one, (1R*,3Z,7Z,11S*,12S*)-12-hydroxydolabella-3,8-dien-2-one, (1S*,11S*)-3,4;7,8-diepoxy-18-hydroxydolabella-12-ene, (5S*,8S*,9S*, 12R*,13R*,14R*)-9,13-dihydroxydolasta-1,3-diene, (5S*,8S*,9S*, 12R*,13R*,14R*)-13-acetoxy-9-hydroxydolasta-1,3-diene, (5R*,8S*,9 S*,12R*,14S*)-9-hydroxydolasta-1,3-dien-13-one, (5R*,8S*,9S*,12R*, 13S*,14S*)-9,13-dihydroxydolasta-1,3-diene, and (8S*,9S*,12R *)-9-hydroxyisodolasta-1,3,5(14)-trien-13-one were established by interpretation of spectral data and chemical interconversions. Two stereoisomers of (8S*,9S*,12S*)-9-hydroxydolasta-1,3-diene were isolated but their stereochemistries could not be completely elicidated