| comparative excito-repellency of three cambodian plant-derived extracts against two mosquito vector species, aedes aegypti and anopheles minimus. | a study of the behavioral responses of aedes aegypti and anopheles minimus to 3 cambodian plant extracts at 3 different concentrations (1%, 2.5%, and 5%) was performed using an excito-repellency test system. these 3 plants were strophanthus scandens, capparis micracantha, and dioscorea hispida, selected according to traditional healer's knowledge, bibliographic studies and market surveys. results showed that s. scandens leaves' hexane extract was the only one to exert repellency against ae. aegy ... | 2016 | 27802401 |
| transformation of crystalline starch nanoparticles into highly luminescent carbon nanodots: toxicity studies and their applications. | being abundant in many tropical part of the world, dioscorea sp. as food is limited due to its toxicity. however polysaccharides derive from these tubers could be important for other applications. here we developed a highly luminescent carbon nanodots (c-dots) via acid hydrolysis of gadong starch (gs). the hydrolysis rate of gs increased from 49% to 86% within 7 days while the x-ray diffraction showed the native gs particle is a c-crystalline type. the gs particles were either round or oval with ... | 2016 | 26686155 |
| modified dioscorea hispida starch-based hydrogels and their in-vitro cytotoxicity study on small intestine cell line (fhs-74 int). | starch-based hydrogels are promising smart materials for biomedical and pharmaceutical applications, which offer exciting perspectives in biophysical research at molecular level. this work was intended to develop, characterize and explore the properties of hydrogel from starch extracted from new source, dioscorea hispida dennst. starch-mediated hydrogels were successfully synthesized via free radical polymerization method with varying concentrations of acrylic acid (aa),n,n'-methylenebisacrylami ... | 2018 | 29056465 |
| issr marker-assisted genetic diversity analysis of dioscorea hispida and selection of the best variety for sustainable production. | plant breeding is a way of selection of a particular individual for the production of the progeny by separating or combining desired characteristics. the objective of this study was to justify different characteristics of dioscorea hispida (ubi gadong) varieties using molecular techniques to select the best variety for sustainable production at the farmer's level. a total of 160 germplasms of ubi gadong were collected from different locations at the terengganu and kelantan states of malaysia. fo ... | 2017 | 28888550 |
| gene expression profiling associated with hepatoxicity in pregnant rats treated with ubi gadong (dioscorea hispida) extract. | dioscorea hispida (d.hispida) is the most well-known starchy tuber in malaysia and called 'ubi gadong'. despite concerns over toxicity effects, the tuber is known to possess therapeutic values due to the presence of bioactive compounds such as saponins. this study was performed to identify the changes in gene expression profiles associated with hepatoxicity in pregnant rat treated with d.hispida using rt² profiler pcr array. the identification of steroidal saponins from d.hispida was carried out ... | 2017 | 28533734 |
| preparation and characterization of physicochemical properties of glacial acetic acid modified gadung (diocorea hispida dennst) flours. | in addition to the presence of antinutrients, the inferior physicochemical properties of flours has caused gadung (dioscorea hispida dennst) becomes one of the underutilized tubers in the world. acetylation is one of the starch modification methods to alter the physicochemical properties of starch, namely swelling power and solubility. the objective of this work was to investigate the effect of reaction time, glacial acetic acid/flour mass ratio and ph on gadung flour acetylation at ambient temp ... | 2015 | 26396408 |
| asiatic bitter yam intoxication. | | 2014 | 25183121 |
| automatic alkaloid removal system. | this alkaloid automated removal machine was developed at instrumentation laboratory, universiti sultan zainal abidin malaysia that purposely for removing the alkaloid toxicity from dioscorea hispida (dh) tuber. it is a poisonous plant where scientific study has shown that its tubers contain toxic alkaloid constituents, dioscorine. the tubers can only be consumed after it poisonous is removed. in this experiment, the tubers are needed to blend as powder form before inserting into machine basket. ... | 2014 | 24783795 |
| fingertip dermatitis in a retail florist. | prevalence of plant contact dermatitis in retail florists varies with exposure, and the number of reports of contact allergy to cut tulips is rather small. alpha-methylene-gamma-butyrolactone is better known as the cause of both alstroemeria dermatitis in retail florists and tulip finger in wholesale floral workers who handle the bulbs. our patient presented with prominent erythema, scaling, and peeling of the skin of the thumb, index, and middle fingers of his right hand. results of a patch tes ... | 2001 | 11324397 |
| an alkaloid of dioscorea hispida, dennst. | | 1951 | 14910652 |