نتایج جستجو برای: petroleum refinerie
تعداد نتایج: 16489 فیلتر نتایج به سال:
This study aims to investigate larvicidal activities of extracts of Cassia mimosoides leaves and pods as a potential agent in vector control of malaria and to evaluate repellent effect against Anopheles gambiae mosquito of the extract formulated in an aqueous cream base. Petroleum spirit, ethanol, water and dichloromethane extracts were tested against third and fourth instar Anopheles gambiae l...
The subject of petroleum storage tank fires has gained a great deal of attention due to the high cost of petroleum, and the consequent disruption of petroleum production; therefore, much of the current research has focused on petroleum storage tank fires. Also, the number of petroleum tank fires is oscillating between 15 and 20 fires per year. About 33% of all tank fires are attributed to light...
This study examined the antioxidant and anticancer activities of the petroleum ether extracts from the roots of Platycodon grandiflorum A. DC, which is a plant used as both a herbal medicine and food in Asia. Extracts from Platycodon grandiflorum in petroleum ether were fractionated (fractions I-V) by silica gel column chromatography using gradient solvents (petroleum ether: ethyl ether, 9:1-5:...
The petroleum ether and chloroform fractions of ethanol extract of leaf and stem from the plant Passiflora edulis (Fam: Passifloraceae) was subjected to antioxidant, antibacterial and cytotoxic activity. All the fractions showed potent antioxidant activity, of which the chloroform and petroleum ether fraction of stem demonstrated the strongest antioxidant activity with the IC50 value of 51.28 μ...
The discovery in this laboratory by Lynch and French (1) that A3-carotene partially restores the photochemical activity lost by petroleum ether extraction of chloroplasts suggests that this pigment is ain active component of the photosynthetic mechanism. This observation prompted the present inquiry to determine whether ,8-carotene is specific for such reactivation or whether other fat soluble ...
P.A. Kulakow and L. Erickson Department of Agronomy, Throckmorton Hall, Kansas State University, Manhattan, KS 66506; Phone: (785) 532-7239; e-mail: [email protected]. Department of Chemical Engineering, Durland Hall, Kansas State University, Manhattan, KS 66506; Phone: (785) 5324313; e-mail: [email protected]. ABSTRACT The TPH (total petroleum hydrocarbon) subgroup of the RTDF (Remediation Technolo...
Hyptis Suaveolens (L.)Poit is a traditional pubescent annual herb found throughout India. On the basis of its traditional use and literature references, this plant was selected for the screening of wound healing property. The leaves of Hyptis Suaveolens were exhaustively extracted by soxhlet apparatus with different solvents like petroleum ether, solvent ether, chloroform, alcohol and chlorofor...
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