34 research outputs found

    Ternary co-ordination complexes of copper(II) with L-histidine and some selected amino-acids

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    The multiple equilibria involved in some ternary systems of copper(II) containing L-histidine (A) and DL-2-aminobutyric acid, DL-3-aminobutyric acid, 4-aminobutyric acid, DL-4-amino-3-hydroxybutyric acid, DL-2,3-diaminopropionic acid, DL-2,4-diaminobutyric acid, or DL-ornithine (B) have been investigated by pH titrimetry in aqueous perchlorate media at 37°C and l=0.15 mol dm−3(Na[ClO4]). Ternary complex species of the type [CuAB], [CuABH], and [CuABH2] were detected. In every system studied, greater stability than would be expected statistically is observed. L-Histidine (A) binds in a tridentate manner in all the systems. Among the potentially tridentate secondary ligands (B) used, DL-2,3-diaminopropionic acid, DL-2,4-diaminobutyric acid, and DL-ornithine bind in a tridentate manner, while DL-4-amino-3-hydroxybutyric acid appears to be bidentate. The probable sites of protonation in the [CuABH] and [CuABH2] complexes are discussed in terms of their stability-constant data

    Pharmacological credence of the folklore use of Bauhinia malabarica in the management of jaundice

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    The information on the hepatoprotective effect of Bauhinia malabarica Roxb. (Family Leguminosae) used in the folkloric medical practice in Malabar coast and Walayar valley of southern India for the treatment of liver related disorders is completely unknown. Hence, the efficacy of the aqueous methanolic extract of stem bark of B. malabarica (AqMeOH-Ba) was evaluated for liver function serum biochemical markers along with the antioxidant markers in liver tissues of Wistar albino rats. The biochemical observations as well as the histopathological examination of liver sections manifested considerable hepatoprotective activity of B. malabarica stem bark, and thus validated the folkloric claim

    Optimization of Spacing and Fertilizer Levels on Growth, Yield Parameters and Yield of Chia (Salvia hispanica L.)

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    A field experiment was conducted during Kharif season-2019 at Agricultural Research Station, Chintamani, Karnataka. The experiment consisted of four levels of spacing (45 × 15, 45 × 30, 60 × 15, and 60 × 30 cm) and three levels of fertilizer (40:20:20, 60:40:40 and 80:60:60 kg NPK ha-1) to determine the influence of different spacing and fertilizer levels on growth and yield of chia (Salvia hispanica L). The experiment was arranged in a statistical design of Factorial Randomized Complete Block Design (FRCBD) with three replications. The report of the study indicated that among different spacings, 60 × 30 cm was recorded a significantly higher number of leaves plant-1 (108), a number of primary and secondary branches plant-1 (22.38 and 27.69, respectively), Dry matter accumulation plant-1 (146.09 g) and seed yield (1015 kg ha-1) however, spacing of 45 cm × 15 cm produced significantly superior plant height (125.57 cm). Among different fertilizer levels, the application dose of 80:60:60 kg NPK ha-1 recorded significantly higher plant height (125.59 cm), number of leaves plant-1 (103.67), number of primary and secondary branches plant-1 (22.47 and 27.63, respectively), Dry matter accumulation plant-1 (131.47 g), seed yield (1020 kg ha-1). Significantly higher seed yield (1122 kg ha-1) was obtained in the treatment combination of 60 × 30 cm with 80:60:60 kg NPK ha-1 compared to other treatments
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