نتایج جستجو برای: plant oils

تعداد نتایج: 418162  

2016
Fereidoon Shahidi Adriano Costa de Camargo

Edible oils are the major natural dietary sources of tocopherols and tocotrienols, collectively known as tocols. Plant foods with low lipid content usually have negligible quantities of tocols. However, seeds and other plant food processing by-products may serve as alternative sources of edible oils with considerable contents of tocopherols and tocotrienols. Tocopherols are among the most impor...

2005
C. Tao B. B. He Bingjun Brian He

Erucic acid (EA), a fatty acid of 22-carbon chain with one isolated double bond, has broad industrial applications. Currently, erucic acid is isolated from Crucifereae plant oils through steam splitting, namely the Colgate-Emery process, followed by fractional distillation. This two-step process involves drastic conditions, low energy efficiency, and extensive product degradation. Enzymatic app...

Abbas Hadjiakhondi Fatemeh Fouladi Mohammad Ali Maasumi Narguss Yassa Seyed Hamid Reza Alavi, Yousef Ajani

     The essential oils of leaves and flowers of Peucedanum ruthenicum (M. Bieb.) Rochel (Umbelliferae) were prepared by hydrodistillation separately and analyzed by GC and GC-MS, and the composition of both essential oils were compared together. Sixteen and eleven compounds were identified in leaves and flowers essential oils representing 100% and 96.4% of total oils, respectively. Th...

E kazemi, N Agh, R Malekzadeh Viayeh,

Enrichment of live foods by essential nutrients such as highly unsaturated fatty acids is an important tool for improvement of larval fish quality. In this study, nutritional effects of Artemia urmiana enriched by fish and plant oils on growth, survival rate, body compositions and resistance against thermal, salinity and hypoxic stresses in rainbow trout, Oncorhynchus mykiss were examined. Six ...

Journal: :Chemistry & biodiversity 2012
Roberto Cecotti Emanuele Carpana Luca Falchero Renato Paoletti Aldo Tava

The composition of the volatile fraction of Polygonum bistorta L. (also known as bistort or snakeroot) was investigated. Fresh aerial parts of this plant species were collected in the Western Italian Alps during the summer at three different phenological stages, namely vegetative, flowering, and fruiting, and steam-distilled in a Clevenger-type apparatus. The oils accounted for 0.004 to 0.010% ...

Journal: :Molecules 2012
Eunae Kim Il-Kwon Park

Commercial plant essential oils obtained from 11 Myrtaceae plant species were tested for their fumigant antifungal activity against Aspergillus ochraceus, A. flavus, and A. niger. Essential oils extracted from Leptospermum petersonii at air concentrations of 56 × 10(-3) mg/mL and 28 × 10(-3) mg/mL completely inhibited the growth of the three Aspergillus species. However, at an air concentration...

2007
Vina W. Yang Carol A. Clausen

Moisture management remains the most critical factor for controlling mold growth on wood and wood products during storage, construction, and while in service. When moisture management practices fail to adequately control moisture, plant extracts demonstrating antifungal properties may provide protection for these applications. The objective of this study was to evaluate the antifungal propertie...

2014
Sangita Kumari Sachin Pundhir Piyush Priya Ganga Jeena Ankita Punetha Konika Chawla Zohra Firdos Jafaree Subhasish Mondal Gitanjali Yadav

Plant essential oils are complex mixtures of volatile organic compounds, which play indispensable roles in the environment, for the plant itself, as well as for humans. The potential biological information stored in essential oil composition data can provide an insight into the silent language of plants, and the roles of these chemical emissions in defense, communication and pollinator attracti...

2006

Volatile oils extracted by steam distillation from leaves of two plant species Moschosma polystachyum and Solanum xanthocarpum were evaluated in mosquito cages for their topical repellency effects against filarial vector Culex quinquefasciatus. The oil from M. polystachyum was tested at four different concentrations ranging from 1 to 4%. The 4% concentration gave 332.2 minutes protection wherea...

2016
Avni Hajdari Behxhet Mustafa Dashnor Nebija Hyrmete Selimi Zeqir Veselaj Pranvera Breznica Cassandra Leah Quave Johannes Novak

The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of the Pinus peuce Grisebach, Pinaceae in Kosovo. Plant materials were collected from three populations in the Sharri National Park and from four other populations in the Bjeshkët e Nemuna National Park, in Kosovo....

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