| growth inhibitory effect of shelf life extending agents on bacillus subtilis iam 1026. | natural shelf life extending agents and sugar fatty acid esters that might inhibit the growth of b. subtilis iam 1026 were screened, and the effective agents were as follows: beta-thujaplicin (hinokitiol) and chitosan, inhibited the growth of iam 1026 at a concentration of 0.001% ; epsilon-polylysine and m-1695 (a sugar fatty acid ester) at 0.005%; citrus seed extract, thiamin lauryl sulfate, and grapefruit seed extract at 0.01%; ct-1695 and l-1695 (sugar fatty acid esters) at 0.05%; pectin dige ... | 2007 | 17629249 |
| inhibitory effects of natural plants of jeju island on elastase and mmp-1 expression. | in order to search for new active cosmetic ingredients of natural origin, we screened about 60 plants collected from jeju island, which is located in the southernmost part of the republic of korea. we investigated their free radical scavenging activity, elastase inhibition activity, and reduction of mmp-1 mrna expression for the development of anti-aging ingredients as raw materials for use in cosmetics. in the free radical scavenging capacity assay, 12 extracts, including typha orientalis (seed ... | 2007 | 17342265 |
| subchronic toxicity study of water pepper extract in f344 rats. | a subchronic toxicity study of water pepper extract (wpe) from polygonum hydropiper l. was conducted in groups of 10 male and 10 female f344 rats fed powdered diets containing 0, 62.5, 250, 1000 or 4000 ppm concentrations for 13 weeks. suppression of body weight gain due to decreased food consumption was observed in both sexes at 4000 ppm, and at autopsy, increase of relative weights was observed for the brain, liver, spleen, kidneys, and testes in these animals, suggestive of the reflection of ... | 2006 | 16542768 |
| identification of a drimenol synthase and drimenol oxidase from persicaria hydropiper, involved in the biosynthesis of insect deterrent drimanes. | the sesquiterpenoid polygodial, belonging to the drimane family, has been shown to be an antifeedant for a number of herbivorous insects. it is presumed to be synthesized from farnesyl diphosphate via drimenol, subsequent c-12 hydroxylation, and further oxidations at both c-11 and c-12 to form a dialdehyde. here, we have identified a drimenol synthase (phds) and a cytochrome p450 drimenol oxidase (phdox1) from persicaria hydropiper. expression of phds in yeast and plants resulted in production o ... | 2017 | 28258968 |
| [a study of preparations obtained from water pepper herb]. | | 1966 | 6011374 |