Results 141 to 150 of about 124,089 (289)
Preparative work on Oceanapia ramsayi sponge specimens collected from the northeast South African coast (A) result in the isolation of four bifunctional sphingolipids (center). Bioassays of these compounds and their derivatives (B) show antimicrobial activity against bacterial pathogens and selective cytotoxicity to breast cancer tissue culture cell ...
Dele Abdissa Keneni +7 more
wiley +1 more source
In vitro tests conducted with extracts rich in tannins have identified several biological activities of this class of substance. Thus, this paper intends to evaluate the antibacterial activity of tannin-rich fraction obtained from leaf extracts of ...
Peracio Rafael Bueno Ferreira +6 more
doaj
1,4-Benzoxazine Derivatives in Plants. Sephadex Fractionation and Identification of a New Glucoside [PDF]
J. Hofman, O. Hofmanová
openalex +1 more source
Photo‐Triggered Hyaluronic Acid Hydrogel for 3D Culture and Cell Recovery
GA: Cross‐linking of hyaluronic acid modified by a strained alkyne with a photosensitive crosslinker terminating in azides gives hydrogels with tuneable mechanical properties. By tuning the wavelength of employed light, the hydrogel can either be fully degraded allowing harvesting of cultured cells or softened resulting in notable changes in cell ...
Francesco Palmieri +8 more
wiley +1 more source
The main objectives of this research we to purify protease from biduri (Calotropis gigantean) latex and its partial characterization in relation with this application in the food processing.
Yuli Witono1) +3 more
doaj
Producción, purificación y caracterización parcial de una glucoamilasa de aspergillus niger.
La enzima glucoamilasa se produjo por fermentación de una cepa de Aspergillus niger suministrada por el "Osaka Technical Research Institute". La mezcla de amilasas se separó del caldo de fermentación por precipitación con sulfato de amonio (55-75 % de ...
Yolanda Rico
doaj
Xylan, extracted from oat spelts in a previous work, was assayed by HPLC and used as carbon source for the production of xylanase from Aspergillus flavus AUMC 10331.
AH Moubasher +3 more
doaj

