Studies on Hibiscus. II

Studies on the presence of spasmogenic and spasmolytic constituents in Hibiscus rosasinensis aerial parts

The aqueous-ethanolic extract of the Hibiscus rosasinensis aerial parts (Hr.Cr) was studied for the possible presence of spasmogenic and spasmolytic constituents to rationalize some of its traditional uses in gastrointestinal disorders. Segments of isolated rabbit jejunum and guinea-pig ileum, 2-3 cm long were mounted seprately in Tyrode’s solution and aerated with 95% oxygen in carbon dioxide....

Studies on the presence of spasmogenic and spasmolytic constituents in Hibiscus rosasinensis aerial parts

The aqueous-ethanolic extract of the Hibiscus rosasinensis aerial parts (Hr.Cr) was studied for the possible presence of spasmogenic and spasmolytic constituents to rationalize some of its traditional uses in gastrointestinal disorders. Segments of isolated rabbit jejunum and guinea-pig ileum, 2-3 cm long were mounted seprately in Tyrode’s solution and aerated with 95% oxygen in carbon dioxide....

Crystal structures of hibiscus acid and hibiscus acid dimethyl ester isolated from Hibiscus sabdariffa (Malvaceae)

The biologically active title compounds have been isolated from Hibiscus sabdariffa plants, hibiscus acid as a dimethyl sulfoxide monosolvate [systematic name: (2S,3R)-3-hy-droxy-5-oxo-2,3,4,5-tetra-hydro-furan-2,3-di-carb-oxy-lic acid dimethyl sulfoxide monosolvate], C6H6O7·C2H6OS, (I), and hibiscus acid dimethyl ester [systematic name: dimethyl (2S,3R)-3-hy-droxy-5-oxo-2,3,4,5-tetra-hydro-fur...

Studies on Hibiscus Cannabinus, Hibiscus Sabdariffa, and Cannabinus Sativa Pulp to Be a Substitute for Softwood Pulp- Part 2: Sas-aq and Nssc-aq Delignification Processes

Hibiscus cannabinus, Cannabis sativa, and Hibiscus sabdariffa, fast growing productive annual plants, could provide fiber necessary to partially alleviate the world’s fiber deficit. The present study aimed at producing high yield pulp and the best mechanical strength properties with minimum impact on environment by SAS-AQ, and NSSC-AQ pulping processes. A total alkali of 13% (as Na2O), an alkal...

Studies on Echinococcosis : Ii. Echinococcosis in Japan