Results 1 to 10 of about 521,788 (293)
Acta Societatis Botanicorum Poloniae, 2014 The saponin fraction of black medic trefoil (Medicago lupulina) roots was isolated and purified. Its hydrolysis afforded several aglycones that have been identified by spectral and chemical properties as medicagenic acid, hederagenine and soyasapogenols:
Wiesław Oleszek +4 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2014 The separation of saponins derived from Medicago lupulina L. flowers yielded two saponin fractions. The first one, made up of crystalline saponins, readily precipitable from water solution, was a mixture of three glycosides of soyasapogenol B.
Marian Jurzysta +4 more
doaj +1 more source
Studies on Medicago lupulina saponins. 4. Variation in the saponin content of M. lupulina
Acta Societatis Botanicorum Poloniae, 2014 The saponin content in the tops of black medic trefoil cv. Renata as well as in some botanical and breeding lines of M. lupulina was analysed. It was found that the concentration of biologically active (hemolytically active) saponins in the tops of M ...
Piotr M. Górski +4 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2014 The effect of M. lupulina saponins on the growth of mice and feed utilization was investigated. The nutritive value of diets containing different amounts of M.
Piotr M. Górski +4 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2014 Two pure saponin fractions from the tops of M. lupulina were isolated and characterized. The fractions named Ma and Ss varied in composition and biological activity. It was shown by TLC that fraction Ma contained 5 components. In the acid hydrolysates of
Piotr M. Górski +4 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2014 Saponins from M. lupulina tops were investigated for the first time. Eight aglycones were found in the acid hydrolysates of saponins. All of the aglycones were isolated.
Piotr M. Górski +4 more
doaj +1 more source
A new sand pouch-plant infection technique for enumeration of rhizobia in soil
Acta Societatis Botanicorum Poloniae, 2014 A sand pouch-plant infection technique for counting most probable numbers of rhizobia in soil is described. Populations of Rhizobium leguminosarum bv. trifoli detected by the plant infection method performed in enclosed glass tubes or in sand pouches did
Stefan Martyniuk +3 more
doaj +1 more source
The formononetin content in some Polish di- and tetraploid red clover cultivars
Acta Agrobotanica, 2013 The concent of formononetin, the predominant estrogen, was analyzed in four cultivars of red clover. Its highest content was found in cv. Jubilatka (tetraploid) - 0,57 % DM, next, in cv.
Stanisław Burda +3 more
doaj +1 more source
Detection and Cultivation of Soil Verrucomicrobia [PDF]
Applied and Environmental Microbiology, 2005 ABSTRACT Only one isolate each of the class “ Spartobacteria ” (subdivision 2 of the phylum Verrucomicrobia ) and of subdivision 3 of Verrucomicrobia have previously been reported to grow in laboratory culture.
Parveen, Sangwan +4 more
openaire +2 more sources
A method of isoflavones isolation from red clover as standards for analyses
Acta Agrobotanica, 2013 Five compounds having an isoflavone structure were isolated from the tops of red clover (Trifolium pratense). On the basis of spectral (UV, MS) and chromatographic (TLC, HPLC) analyses the compounds were identified as biochanin A, formononetin ...
Piotr M. Górski +3 more
doaj +1 more source