Showing papers on "Glucoside published in 1976"
TL;DR: Honeydew and leaf extracts from Salix babylonica indicate that large quantities of cytokinin are present in the leaves and are transported through the phloem of this plant during late autumn.
Abstract: Honeydew and leaf extracts from Salix babylonica indicate that large quantities of cytokinin are present in the leaves and are transported through the phloem of this plant during late autumn The active compound in the extracts could be hydrolysed with β-glucosidase, whereafter it showed the same chromatographic behaviour as zeatin It is proposed that cytokinins in the leaves are converted to the glucoside and then redistributed to the rest of the plant organs where it is stored
53 citations
TL;DR: By means of chromatographic, mass spectrometric and enzymatic techniques, the major cytokinin in butanol extracts from the milk of Cocos nucifera fruits was identified as zeatin glucoside as discussed by the authors.
Abstract: By means of chromatographic, mass spectrometric and enzymatic techniques the major cytokinin in butanol extracts from the milk of Cocos nucifera fruits was identified as zeatin glucoside.
48 citations
33 citations
33 citations
TL;DR: AlPHA-Methyl-D-glucoside has been used to study the invitro mechanism of the effect of maleic acid on sugar transport, using isolated rat renal tubule fragments, but their work does not explain the results, which therefore deserve further investigation by other techniques.
31 citations
TL;DR: In this paper, eight flavonoids were isolated from the leaves of Salix alba and one, apigenin 7-O -(4-p -coumarylglucoside), is a new natural compound; another, terniflorin, the 6 isomer, is an artefact.
25 citations
24 citations
TL;DR: The phospholipid was shown to function as an acyl donor by demonstrating that [ 14 C]fatty acid from 14 C-labeled phospholIPid could be transferred to steryl-[3 H]glucoside to form [ 14C, 3 H]acylated steryl glucoside.
24 citations
TL;DR: The structure of phytolaccoside B, one of the major saponin components of the roots of Phytolacca americana, has been elucidated as 3β- d -glucopyranosyljaligonic acid 30-methyl ester.
20 citations
TL;DR: From leaves and twigs of Tarenna kotoensis KAN, var. gyokushinka, a new iridoid glucoside, tarennoside (1) has been isolated and its structure has been established as mentioned in this paper.
Abstract: From leaves and twigs of Tarenna kotoensis KAN. et SAS, var. gyokushinka, a new iridoid glucoside, tarennoside (1) has been isolated and its structure has been established. Simultaneously, the known geniposidic acid (2) and ixoside (3) have also been isolated.
19 citations
TL;DR: Acylated 4-deoxyhex-3-enopyranosiduloses carrying benzoyl and/or acetyl groups (i.e., enolones 9, 10, and 14 ) were prepared by methyl sulfoxide-acetic anhydride oxidation of methyl 3,4,6-tri-O -acetyl-β-D -glucoside and of methyl methyl 3- O -benzoyl-4, 6-tri -O-benzylidene-α-D-glucose, the
TL;DR: The most abundant metabolite of this parent material has been identified as the -O-β- D -glucoside from its biological data and the spectroscopic data of it and its acetylated derivative.
TL;DR: Based on 14 CO 2 -formation, glucose from position 3 of kaempferol is 3–5 times more rapidly metabolized than that from position 7 of flavonol, with a considerable portion of the Flavonol nucleus from both isomers being incorporated into insoluble polymeric cell material.
TL;DR: In this article, a chalcone glucoside, helichrysin (1), was isolated from the flowers of a Helichrysum species, which was used as a source for the extraction of Luteolin 7-glucoside and 2-Omethylchiroinositol.
Abstract: Luteolin 7-glucoside, (–)-2-O-methylchiroinositol, and a new chalcone glucoside, helichrysin (1), have been isolated from the flowers of a Helichrysum species.
Journal Article•
TL;DR: Four different beta-glycosidases have been separated from leaves of chick pea plants, Cicer arietinum L., by DEAE-cellulose chromatography and one is specific for isoflavone 7-beta-glucosides and has been described elsewhere.
Abstract: Four different beta-glycosidases have been separated from leaves of chick pea plants, Cicer arietinum L., by DEAE-cellulose chromatography. One is specific for isoflavone 7-beta-glucosides and has been described elsewhere. Two others showed very similar protein properties and identical catalytic activities. They have been further purified and both appeared as single, homogeneous protein bands after alkaline disc electrophoresis as well as isoelectric focusing. Isoelectric points are at pH 4.35 and 4,45, respectively. Both beta-glycosidases have molecular weights of 120000-140000 and have two subunits with identical molecular weights of 65 000. Both beta-glycosidases preferentially catalyze hydrolysis of diglycosides like biochanin A 7-beta-apiosyl(1 leads to 2)glucoside (Km=1.5 X 10(-4) M; V=10 mumol X min-1 X mg-1). The apiosylglucoside unit is liberated as an intact disaccharide. beta-Glucosides like biochanin A 7-beta-glucoside or 2-nitrophenyl glucoside are also efficiently hydrolyzed. These beta-glycosidases also possess transferase activity, but only when measured with isoflavone aglycones as acceptors. Transfer of the intact apiosylglucoside unit of biochanin A 7-beta-apiosylglucoside could be demonstrated. The enzymes have a pH optimum of 5.5. The beta-glycosidates are strongly inhibited by p-hydroxymercuribenzoate and Bromocondurite. Glucono-1,5-lactone, Ag and Hg2 showed only weak inhibition and Condurit B epoxide had no effect at all. A fourth beta-glycosidase activity from chick pea leaves shows no preferential activity for isoflavone 7-glycosides.
Journal Article•
Patent•
05 May 1976
TL;DR: In this article, a process for producing amorphous preparations of steryl glucoside monopalmitates is described, where the compounds are either heated at a temperature above 110° C up to about 145° C or they are dissolved in an organic solvent in which they are soluble with a solvent which is then distilled off, and the compounds then pulverized and mixed with physiologically harmless organic or inorganic fine particles in a proportion of 0.5 times (by weight) of the compounds or more.
Abstract: A process for producing amorphous preparations of steryl glucoside monopalmitates, wherein steryl glucoside monopalmitates are heated at a temperature above 110° C up to about 145° C or the compounds are dissolved in an organic solvent in which they are soluble with a solvent which is then distilled off, and the compounds then pulverized and mixed with physiologically harmless organic or inorganic fine particles in a proportion of 0.5 times (by weight) of the compounds or more, thereby homogeneously dispersing the amorphous compounds in the fine particles or uniformtly adsorbing the compounds on the fine particles, and the resulting preparations which have hemostatic properties and are readily absorbable upon ingestion. The starting steryl glucoside monopalmitates are obtained in crystalline form as from soy beans or other vegetable sources.
Journal Article•
Patent•
23 Oct 1976
TL;DR: In this paper, the preparation of echinatin glucoside which has more than about 1000 times the water solubility of Echinatin and is expected to have some pharmacological activities was discussed.
Abstract: PURPOSE:Preparation of echinatin glucoside which has more than about 1000 times the water solubility of echinatin and is expected to have some pharmacological activities.
TL;DR: In this paper, aryl β-d-mannopyranoside derivatives with DMSO-P2O5 and sodium borohydride were used for the preparation of aryls.
Abstract: Sequential oxidation and reduction of aryl 4, 6-O-benzylidene-β-d-glucosides with dimethyl sulfoxide-phosphorus pentoxide mixture (DMSO–P2O5) and sodium borohydride were carried out as a new means for the preparation of aryl β-d-mannopyranoside derivatives. p-Nitrophenyl 4, 6-O-benzylidene-β-d-mannopyranoside was obtained in 22% yield from the corresponding glucoside 3-O-acetate, whereas from the unprotected acetal, 4, 6-O-benzylidene acetals of the corresponding mannoside and alloside were isolated in the yields of 6.7 and 2.1%, respectively. Similarly, phenyl 4, 6-O-benzylidene β-d-mannoside, alloside, and altroside were obtained from the corresponding glucoside in 2.2, 0.8 and 2.1% yields, respectively.