Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Rainer-B. Volk"'
Publikováno v:
Natural product communications. 11(8)
Officinal European Leonurus cardiaca, East Asian L. japonicus, and South African Leonotis leonurus are traditionally used for cardiovascular, gynecological, and neurological disorders. Nevertheless, a phytochemical assessment as a basis for their qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c76b632e20e6f3089aed5fb1e47a0444
https://pubmed.ncbi.nlm.nih.gov/30725575
https://pubmed.ncbi.nlm.nih.gov/30725575
Autor:
Rainer-B. Volk
Publikováno v:
Zeitschrift für Phytotherapie. 32:202-208
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::348106a094d524d0d57738e6d7bed3d6
https://doi.org/10.1055/s-0031-1286026
https://doi.org/10.1055/s-0031-1286026
Autor:
Rainer-B. Volk
Publikováno v:
Microbiological Research. 163(3):307-313
Summary A screening of microalgae strains is described, with the objective to discover more species besides the known cyanobacterium Nodularia harveyana which excrete the manifold biologically active and co-mutagenic indole alkaloid norharmane (9H-py
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::45fd64e656cffaa322f915c8cf802bcb
Autor:
Rainer-B. Volk
Publikováno v:
Microbiological Research. 163(2):161-167
Summary This paper reports about a newly developed assay which enables the user to quantify and compare the antimicrobial (anticyanobacterial) activity of both hydrophilic and lipophilic test compounds without any restriction. The assay is characteri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cf55e53dbd326c1edb7151668194e36
Publikováno v:
Journal of Natural Medicines. 61:397-401
A high molecular weight arabinogalactan protein (AGP) from the pressed juice of Echinacea purpurea, known to exhibit immunomodulatory properties in vitro, was characterized. Alkaline hydrolysis was carried out, leading to degradation of the protein c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::672f2973c027c00c7da3afe9fa0a9e17
https://doi.org/10.1007/s11418-007-0174-3
https://doi.org/10.1007/s11418-007-0174-3
Autor:
Rainer-B. Volk
Publikováno v:
Journal of Applied Phycology. 19:491-495
Changes in the content of exometabolites excreted by the cyanobacterium Nostoc insulare during batch cultivation were determined. During linear growth, only the non-toxic compound N,N′-(4,5-dimethyl-1,2-phenylene)-bis-acetamide was detectable in ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b25d9dad4ea1f16b12d54d6b9ef04031
https://doi.org/10.1007/s10811-007-9161-z
https://doi.org/10.1007/s10811-007-9161-z
Publikováno v:
Planta Medica. 72:1424-1427
During batch cultivation, the cyanobacterial strain Synechocystis aquatilis Sauvageau B90.79 was found to release a fucose-rich sulfated polysaccharide, which was mainly composed of arabinose (45%) and fucose (47%) and had a degree of sulfation of 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b5868af700d21f540857cfc424729ed
https://doi.org/10.1055/s-2006-951707
https://doi.org/10.1055/s-2006-951707
Autor:
Rainer-B. Volk, Sabine Mundt
Publikováno v:
Journal of Applied Phycology. 19:55-62
The isolation, identification and quantification of exometabolites from culture media of the cyanobacterium Nostoc insulare are described. Besides the known exometabolite 4,4′-dihydroxybiphenyl (I), two more compounds, the β-carboline 9H-pyrido(3,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2467a66cd41e85da205b8c0e1671ce3e
https://doi.org/10.1007/s10811-006-9110-2
https://doi.org/10.1007/s10811-006-9110-2
Autor:
Rainer-B. Volk
Publikováno v:
Journal of Applied Phycology. 18:145-151
The isolation of norharmalane (3,4-dihydro-9H-pyrido(3,4-b)indole) from culture media of the cyanobacterium Nodularia harveyana is described. The minimum toxic quantities against selected cyanobacteria of this compound, of the two known cyanobacteria
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a605fd87d3bd6f00649b2828f735ea3
https://doi.org/10.1007/s10811-006-9085-z
https://doi.org/10.1007/s10811-006-9085-z
Autor:
Rainer-B. Volk
Publikováno v:
Journal of Applied Phycology. 17:339-347
Culture medium extracts obtained from 115 culture media of 35 different microalgae species were screened for the presence of algicidal compounds, in particular for compounds which are cytotoxic to Arthrospira (Spirulina) laxissima. In agar plate diff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c4b6cbbc2ad741d274d1698812cb854
https://doi.org/10.1007/s10811-005-7292-7
https://doi.org/10.1007/s10811-005-7292-7