Bioherbicides are an alternative to minimize the damage caused environment using agrochemicals. This study had objective of extracting neem oil from ripe waste fruits that Azadirachta indica A. Juss and optimizing process solvents (or a mixture solvents) with different polarities. Then, through solid-liquid extraction system (Soxhlet), hexane, methanol/hexane (1:1), ethanol, hexane/ethanol (1:1...

objective: tyrosinase as the key enzyme in melanin biosynthesis, involves in determining the color of mammalian skin and hair. a variety of dermatological disorders, come up from an unnecessary level of epidermal pigmentation. plants are low-cost and rich sources of active compounds.  methods: more than seventy native plants collected from the central region of kurdistan province collected. inh...

with 300 ml of ^2-hexane. The water-alcohol fraction was extracted twice with 300ml of CH2C12and the active CH2C12 extracts concentrated to yield 600mg. The extract was chromatographed on a silica gel column using hexane EtOAcas eluting solvent. Fractions with antitumor activity (280 mg) were eluted with w-hexane EtOAc 75 : 25. Column chromatography on silica gel was repeated and the activity (...

background and objectives: ziziphora clinopodioides is a perennial herb and grows widely in west and northwest of iran. the aerial parts are used as appetizer, carminative and antiseptic as well as for the treatment of medical conditions such as high blood pressure, asthma hyperhidrosis, palpitation and insomnia methods: the aerial parts of ziziphora clinopodioides lam. were extracted by ethano...

vitexagnus- castus l. [vac.] has been used in the iranian traditional medicine for the treatment of pain and swelling of uterus. in this study, gc and gc/ms analyses  were carried out for the identification of essential oil chemical components. formalin and xylene-induced ear-edema were used in order to nociception and inflammation activity. then, the possible interaction between 3drugs includi...

Hexane and methanolic oil extracts from five varieties of Artocarpus seeds were studied to explore its suitability for ethno medical uses. Crude hexane and methanolic oils were found to shown good to moderate activity against bacteria, in particular Gram +ve (Bacillus cereus, Bacillus subtilis and Staphylococcus aureus) and Gram-ve (Eschirichia coli and Pseudomonas aeruginosa) and fungal stains...

The neurotoxicity of n-pentane, n-hexane, and n-heptane have been studied in Wistar strain male rats after exposure to 3000 ppm of n-pentane, n-hexane, or n-heptane for 12 hours a day for 16 weeks. The nerve conduction velocity and the distal latency were measured before the beginning of the exposure and after exposure for four, eight, 12, and 16 weeks. The experiment showed that n-hexane distu...

BACKGROUND Mallotus philippensis (Lam.) Muell. Arg. is a well known medicinal plant of Asia and Australia. Various compounds from different aerial parts of the plant have been reported possessing potent pharmacological, antiviral, antibacterial and cytotoxic activities. We were interested to determine the effects of some root extracts from M. philippensis on human promyelocytic leukemia HL-60 c...

Grewia optiva, a plant of northern area of Pakistan was screened for the natural products, antimicrobial and insecticidal activities. Phytochemical screening, using conventional natural products identification tests indicated the presence of different phytoconstituents. The ethyl acetate and methanolic extracts of the aerial parts of the tile plant revealed the presence of tannins, while terpen...