نتایج جستجو برای: methanol and ethanol
تعداد نتایج: 16842321 فیلتر نتایج به سال:
abstract stachys is one of the largest genera in the flowering plant family. it is in the subfamily lamioideae (labiatae), spreading and growing in different parts of iran. the purpose of this study was to investigate the chemical properties of stachyslavandulifolia as well as the essence, ethanol and methanol extracts of this plant. it was collected from chulus located in the west of mazandara...
conclusions p. spinosa ethanol extract can be used as a mouthwash for treatment of the oral infections. more clinical and toxicological studies are required for providing its efficacy. results p. spinosa ethanol extract with higher-level phenolic and flavonoid contents showed the highest antioxidant and antimicrobial effects, in comparison with the other extracts. bacillus sp. and streptococcus...
Experimental and computational investigations are carried out to identify the generalized criterion predict preignition tendency of methanol ethanol mixtures in shock tubes. Preignition or weak ignition tubes has been reported be a significant factor impacting accuracy delay times data. A systematic means extent non-idealities needs established validated with experimental data over wide range c...
Abstract Heart disease and hypertension are two of the main causes human mortality worldwide. Both can be caused by oxidation cholesterol, causing plaque narrow blood vessels. The purpose this research was to determine solvent for extraction antioxidant anticholesterol bioactive compounds from bekasam extracts. Bekasam extracted polar solvents, i.e., aquabides, methyl alcohol (methanol), ethyl ...
In Jun and Jul 2011 traps were deployed in Tuskegee National Forest, Macon County, Alabama to test the influence of chemical and visual cues on the capture of bark and ambrosia beetles (Coleoptera: Curculionidae: Scolytinae). The first experiment investigated the attractiveness of traps baited with different ratios of ethanol to methanol (0:100, 25:75, 50:50, 75:25, 100:0). No differences occur...
Waru leaf (Hibiscus tiliaceus) is plant that contains natural flavonoids and phenolic compounds useful as an antioxidant. Flavonoids phenolics can be extracted optimally if using a suitable extraction solvents. This study aims to determine the total flavonoid, phenolic, antioxidant levels of waru extract several The flavonoid content was tested AlCl3 colorimetric method, Folin-Ciocalteu DPPH me...
poly-β-hydroxybutyrate (phb), produced by several species of bacteria, has attracted great attention as a biodegradable and biocompatible compound with almost similar properties of polypropylene. unfortunately, its use is currently limited due to high production costs. one of the most common methods for overcoming this constraint is the use of inexpensive substrates, like methanol. another stra...
INTRODUCTION Every year about 2.4 million people in USA are exposed to toxic substances. Many of them are children below 6 years of age. Majority of poisonings in children are incidental and related to household products including for example drugs, cleaning products or antifreeze products. Antifreeze solutions contain ethylene glycol and methanol. Treatment of these toxic substances involves e...
Platycodon grandiflorum (PG), a species of herbaceous flowering perennial plant of the family Campanulaceae, has been used as a traditional oriental medicine for bronchitis, asthma, pulmonary tuberculosis, diabetes, hepatic fibrosis, bone disorders and many others similar diseases and as a food supplement. For the primary profiling of PG gas chromatography coupled with high resolution - time of...
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