نتایج جستجو برای: β pinene

تعداد نتایج: 178970  

Objective: Eucalyptus (Fam. Myrtaceae) is a medicinal plant and various Eucalyptus species possess potent pharmacological actions against diabetes, hepatotoxicity, and inflammation. This study aims to investigate essential oil compositionfrom leaves and flowers of E. microthecaand E. viminalisleavesgrowing in the Southeast of Iran. Materials and Methods: The aerial parts of these plants were co...

2015
D. C. Draper D. K. Farmer Y. Desyaterik J. L. Fry

The effect of NO2 on secondary organic aerosol (SOA) formation from ozonolysis of α-pinene, β-pinene, 1-carene, and limonene was investigated using a dark flowthrough reaction chamber. SOA mass yields were calculated for each monoterpene from ozonolysis with varying NO2 concentrations. Kinetics modeling of the first-generation gasphase chemistry suggests that differences in observed aerosol yie...

Journal: :journal of medicinal plants and by-products 0

ferulago angulata subsp. carduchorum (boiss. & hausskn.) d.f. chamb is a perennial species of the family apiaceae and is locally used as a flavouring agent and for some medicinal properties. the essential oil of this plant if found to possess antibacterial and antifungal activities. the present study is aimed to determine constituents of essential oils from inflorescence of four f. angulata sub...

2016
Yanli Du Jiaxin Zhang Zengguang Yan Yongqiang Ma Mengmeng Yang Minzhao Zhang Zhiyong Zhang Ling Qin Qingqin Cao

Suitability of plant tissues as food for insects varies from plant to plant. In lepidopteran insects, fitness is largely dependent on the host-finding ability of the females. Existing studies have suggested that polyphagous lepidopterans preferentially select certain host plant species for oviposition. However, the mechanisms for host recognition and selection have not been fully elucidated. Fo...

Objective(s):Astrodaucus persicus, Apiaceae, is used as vegetable or food additive in some parts of Iran. The essential oils of different parts of Astrodaucus persicus from Kordestan province were analyzed for the first time and compared with other regions. In this study, antioxidant activities and total phenols determination of aerial parts essential oils and root fractions of A. persicus were...

2014
Halijah Ibrahim Yasodha Sivasothy Devi Rosmy Syamsir Noor Hasima Nagoor Natasha Jamil Khalijah Awang

The essential oils obtained by hydrodistillation of the unripe and ripe fruits of Alpinia mutica Roxb. and Alpinia latilabris Ridl. were analysed by capillary GC and GC-MS. The oils were principally monoterpenic in nature. The unripe and ripe fruit oils of A. mutica were characterized by camphor (21.0% and 15.8%), camphene (16.6% and 10.2%), β-pinene (8.6% and 13.5%), and trans,trans-farnesol (...

Journal: :Brazilian Archives of Biology and Technology 2021

HIGHLIGHTS Essential oils from populations of B. dracunculifolia were investigated. β-pinene and (E)-nerolidol the main compounds in populations. The difference chemical profile essential is quantitative only. There a negative correlation between antioxidant activity spathulenol.

2013
Mariya Shamzhy Maksym Opanasenko Oleksiy Shvets Jiří Čejka

Catalytic behavior of isomorphously substituted B-, Al-, Ga-, and Fe-containing extra-large pore UTL zeolites was investigated in Knoevenagel condensation involving aldehydes, Pechmann condensation of 1-naphthol with ethylacetoacetate, and Prins reaction of β-pinene with formaldehyde and compared with large-pore aluminosilicate zeolite beta and representative Metal-Organic-Frameworks Cu3(BTC)2 ...

Journal: :Biology and Life Sciences Forum 2021

Essential oils are a rich source of compounds for botanical pesticides. This study aimed to characterize the chemical composition essential oil from parsley seeds and its phytotoxicity against germination initial growth wheat mustard. The main were α-pinene, β-pinene, apiol. In Petri dish experiment, inhibited both species. However, seedlings species was more inhibited, especially wheat. conclu...

Journal: :Molekul: Jurnal Ilmiah Kimia 2023

Alpinia monopleura is an endemic plant which widespread and abundant in Sulawesi. Nevertheless, previous studies have not studied the chemical compound biological activity. This study describes compounds antibacterial antioxidant properties of essential oils isolated from A. monopleura. The oil was obtained by hydro distillation method interpreted GCMS. Antibacterial were determined agar diffus...

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