Showing papers on "Corchorus olitorius published in 1989"

Cardiac glycosides from Corchorus olitorius

Abstract: Besides identification of gluco-(1 → 6)-olitoriside and olitoriside, the structures of olitoriusin and erysimoside isolated from the seeds of Corchorus olitorius were proposed to be strophanthidin 3-O-β-D-glucopyranosyl-(1 → 6)-β-D-glucopyranosyl-(1 → 4)-β-D-digitoxoside (2) and strophanthidin 3-O-β-D-glucopyranosyl-(1 → 4)-β-D-digitoxoside (4). The structures were elucidated by a combination of fast-atom bombardment mass spectrometry, 13C n.m.r. spectroscopy, and some chemical transformations.

Comparative study of carbohydrates in the two major species of jute (Corchorus capsularis and Corchorus olitorius

Abstract: Unretted and retted bark and stem of Corchorus olitorius L and retted stem of C capsularis L, two species of jute, were analysed for ash, lignin, low molecular weight carbohydrates and polysaccharides. The results are compared with those from C capsularis published earlier. The unretted bark and stem of C olitorius contained less low molecular weight carbohydrates than the corresponding fractions of C capsularis. C olitorius bark contained less cellulose and more hemicellulose than C capsularis, particularly after retting. Xylans isolated from the retted fibre and stem of C olitorius were found to have a similar composition to those from C capsularis.

Corchorus olitorius extract-containing cosmetic

Abstract: PURPOSE: To obtain a cosmetic for skin and hair by blending an extract extracted from Corchorus olitorius and consisting essentially of an odorless and colorless viscous ingredient with a cosmetic. CONSTITUTION: A leaf or dried powder of stem of Corchorus olitorius belonging to Tiliaceae which is green-yellow vegetable and cultured in the Arabian tropical zone centering Egypt is extracted by an organic solvent, etc. The extract is blended with a cosmetic, etc., at an amount of 0.05-0.5wt.% to provide the objective cosmetic. Since the extract contains a polysaccharide ingredient having a very high viscosity, the cosmetic has good feeling to skin and hair and can protect skin and hair and retain the humidity of skin and hair. The cosmetic can be further utilized for the fields of various processed fooes, granule and tablet for medicine, paste, binder, and coating agent, etc., of paper. COPYRIGHT: (C)1991,JPO&Japio

Chemical composition of seed and electrophoretic pattern of seed storage protein of jute Corchorus olitorius and C. capsularis

Abstract: No significant difference between olitorius and capsularis cultivars were found. The saponification number and iodine value for oil ranged between 163-174 and 116-121 respectively. On the basis of solubility in water and KCl, albumin and globulin accounted for 20% and 40% respectively of the seed protein. The major polypeptides in the globulin fraction were found to be linked by disulphide bonds. The globulin fraction, after reduction, consisted of two major polypeptides of molecular weights around 40,000 and 20,000, which is similar to the legumin protein of legume seeds

Studies on drought susceptibility of corchorus olitorius l. : i. effects of stressing plant at midvegetative stage on dry matter yield and yield components of two cultivars of c. olitorius

Abstract: AYODELE V. I. and FAWUSI M. o. A. Studies on drought susceptibility of Corchorus olitorius L. 1. Effects of stressing plant at mid-vegetative stage on dry matter yieldandyield componentsoftwo cultivars ofC. olitorius. BIOTRO­ NICS 18, 23-27, 1989. A greenhouse experiment was conducted to evaluate the effects of soil water potential of - 6 bar imposed at the mid-vegetative stage on two cultivars of Corchorus olitorius ('Angbadu' and 'Oniyaya'), both indig­ enous to Nigeria. The objective was to determine the differential tolerance of the two cultivars to soil moisture stress. The two cultivars differed signif­ icantly in their responses to soil moisture stress. Leaf area of 'Angbadu' plants was significantly reduced by soil moisture stress, while the reduction observed in 'Oniyaya' was not significant. 'Oniyaya' plants were more tolerant to soil moisture stress. It produced higher fresh weight and dry matter yields than 'Angbadu'. This is attributable to smaller leaves and greater average root length of 'Oniyaya' which helped in controlling excessive transpirational losses and exploit soil moisture while maintaining higher dry matter accumulation.

Genetic Variation in Outcrossing Rates in Jute (Corchorus Olitorius L.)

Abstract: Rate of outcrossing was estimated in F2 generation of 5-parent half diallel including parents as well as in F2 of 5 × 5 line × tester crosses of jute (Corchorus olitorius L.). The nature of variability among different crosses of two mating designs suggested polygenic control for the rates of outcrossing. Heritabilities in broad sense for this character were 19,1% and 22.1% in diallel and line × tester mating designs, respectively.

Ultimate fibres in tossa jute ( Corchorus olitorius L.) and their utilization in selection

Abstract: An experiment was conducted with 11 indigenous genotypes and two cultivated varieties of tossa jute and studied the length, breadth and length/breadth ratio of ultimate fibre cells. The study indicated the highest mean length of fibre cells in the top part of the stem followed by middle and bottom parts. The mean breadth of fibre cells was notably large in the bottom part with a diminishing trend towards the middle and top parts. Among the genotypes and varieties studied, accession no. 1497 was found to have the highest mean length (3229·5 μ) of fibre cells in the top followed by middle (2488·7 μ) and bottom (1649·9 μ) parts. The highest breadth of fibre cells (20 μ) was observed in accession no. 1493 and the lowest breadth (15·3 μ) was obtained in accession no. 1497 in top part of the stem. The highest length/breadth ratio (211·20) was also observed in accession no. 1497 in top part of the stem.