BACKGROUND The effect of the extraction time (min) and temperature (°C) on the yield of betulinic acid (BA) from Zizyphus joazeiro barks using focused microwave-assisted extraction was investigated. MATERIALS AND METHODS The ethyl acetate was used as extractor solvent because it was shown to provide a betulinic acid-clean extract. A full two-level statistical factorial design was applied to d...

Ziziphus nummularia from Rhamnaceae family is traditionally used for sedative-hypnotic, antipyretic and analgesic purposes; however, scientific validations are lacking. This in vivo study was undertaken to verify the above ameliorative properties of Z. nummularia root methanolic extract. Various fractions of the extract were assayed on Balb/c mice by open field, Brewer's yeast-induced hyperther...

One pollutant which seriously threatens water resources is dye. Therefore, finding a suitable method to separate the dye in water resources is very important. An adsorption process that uses low cost adsorbents is considered as an efficient strategy for this purpose. In this study, Erythrosine dye removal from an aquatic environment using natural absorbents, namely Sorghum and Ziziphus nummular...

Ziziphus jujuba Mill (ZJ), which has been extensively used by the Iranian traditional healers, belongs to the Ramnaceae family. This semitropical herb contains large quantities of polyphenols and flavonoids, which in turn reveal antioxidant, antibacterial, free radical scavengering, and several other pharmacological activities. The purpose of the present study was to evaluate the DNA damage pre...

My attention was first called to this disease in an outbreak of beri-beri at Meiktila Jail in 1808 ; at that time I thought the disease was due to a micrococcus, which I found in between the starch cells in jewary, in the granary of the jail ; I had also found it in pigeon's excreta from the roofs, and thought I had also found it in the blood and in pigeon's blood. But my series of experiments ...

Acute, non-clinical insomnia is not uncommon. Sufferers commonly turn to short-term use of herbal supplements to alleviate the symptoms. This placebo-controlled, double-blind study investigated the efficacy of LZComplex3 (lactium™, Zizyphus, Humulus lupulus, magnesium and vitamin B6), in otherwise healthy adults with mild insomnia. After a 7-day single-blind placebo run-in, eligible volunteers ...

Zizyphus spina-christi (Rhamnaceae) grows wild in tropical Africa and Asia and can be domesticated. It has folkloric usage in pain related ailments throughout these regions. In view of the claimed therapeutic potentials, investigation of the plant’s root bark was initiated in our laboratory. The plant material was first sequentially extracted with hexane, chloroform, ethylacetate and methanol, ...

We formulate and describe a visual compactification of the Teichmüller space by Weil-Petersson geodesic rays emanating from a point X. We focus on analogies with Bers’s compactification: due to non-completeness, finite rays correspond to cusps, and such cusps are dense in the visual sphere. By analogy with a result of Kerckhoff and Thurston, we show the natural action of the mapping class group...