Insecticidal Compounds from Tripterygium wilfordii Active against Mythimna separata

2004 ◽  
Vol 59 (5-6) ◽  
pp. 421-426 ◽  
Author(s):  
Du-Qiang Luo ◽  
Xing Zhang ◽  
Xuan Tian ◽  
Ji-Kai Liu
Keyword(s):  
Seed Oil ◽  
Seed Oils ◽  
Total Tocopherol ◽  
Tripterygium Wilfordii ◽  
Mythimna Separata ◽  
Higher Plant ◽  
Plant Lipids ◽  
Derivatives Of ◽  
Fatty Acid Compositions ◽  
Insecticidal Compounds

In the course of our investigations of new sources of higher plant lipids, seed fatty acid compositions and the tocochromanol contents of Salvia bracteata, S. euphratica var. euphratica, S. aucherii var. canascens, S. cryptantha, S. staminea, S. limbata, S. virgata, S. hypargeia, S. halophylla, S. syriaca and S. cilicica were investigated using GLC and HPLC systems. Some of the species are endemic to Turkey. All the Salvia sp. showed the same pattern of fatty acids. Linoleic, linolenic and oleic acid were found as the abundant components. Tocochromanol derivatives of the seed oil showed differences between Salvia species. γ-Tocopherol was the abundant component in most of the seed oils except of S. cilicica. The total tocopherol contents of the seed oils were determined to be more than the total of tocotrienols.

Fatty Acid and Tocochromanol Patterns of Some Salvia L. species

2004 ◽  
Vol 59 (5-6) ◽  
pp. 305-309 ◽  
Author(s):  
Eyup Bagci ◽  
Mecit Vural ◽  
Tuncay Dirmenci ◽  
Ludger Bruehl ◽  
Kurt Aitzetmüllerd
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Fatty Acid ◽  
Seed Oil ◽  
Seed Oils ◽  
Total Tocopherol ◽  
Higher Plant ◽  
Plant Lipids ◽  
Derivatives Of ◽  
Fatty Acid Compositions

In the course of our investigations of new sources of higher plant lipids, seed fatty acid compositions and the tocochromanol contents of Salvia bracteata, S. euphratica var. euphratica, S. aucherii var. canascens, S. cryptantha, S. staminea, S. limbata, S. virgata, S. hypargeia, S. halophylla, S. syriaca and S. cilicica were investigated using GLC and HPLC systems. Some of the species are endemic to Turkey. All the Salvia sp. showed the same pattern of fatty acids. Linoleic, linolenic and oleic acid were found as the abundant components. Tocochromanol derivatives of the seed oil showed differences between Salvia species. γ-Tocopherol was the abundant component in most of the seed oils except of S. cilicica. The total tocopherol contents of the seed oils were determined to be more than the total of tocotrienols.

scholarly journals Study of Fatty Acids Profile in Kernel Oil of Heynea trijuga Roxb. Ex Sims. (syn. Trichilia connaroides (Wight & Arn.) Bentv.)

2017 ◽  
Vol 2017 ◽  
pp. 1-3
Author(s):  
Ashutosh K. Mittal ◽  
Shishir Tandon
Keyword(s):  
Fatty Acids ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Forest Products ◽  
Seed Oils ◽  
Nontimber Forest Products ◽  
Kernel Oil ◽  
Fatty Acids Profile ◽  
Cosmetic Formulations ◽  
Fatty Acid Compositions

Seed oils have been used for centuries by communities as food, medicine, cosmetic applications, and fuel. Recently, there has been a renewed interest in these nontimber forest products specifically for use in cosmetic formulations. The fatty acid compositions of kernel oil of Heynea trijuga was analyzed by GC-FID. The results showed that the oil content was 37.61 percent (w/w) in seed. Seed oil was rich in unsaturated fatty acids. Important fatty acids present were palmitic acid (22.12%), stearic acid (7.51%), oleic acid (25.20%), and linoleic acid (11.65%).

scholarly journals Fatty acids, tocopherol, and sterol contents of some Nigella species seed oil

2011 ◽  
Vol 29 (No. 2) ◽  
pp. 145-150 ◽  
Author(s):  
B. Matthaus ◽  
M.M. Özcan
Keyword(s):  
Fatty Acids ◽  
Seed Oil ◽  
Compositional Analysis ◽  
Tocopherol Content ◽  
Gas Liquid Chromatography ◽  
Seed Oils ◽  
Total Tocopherol ◽  
Total Tocopherol Content ◽  
Total Oil ◽  
Main Component

The lipid compositions of the seed oils of some Nigella species were investigated. The total oil content of the seeds ranged from 28.0 to 36.4%. GC-MS fatty acid compositional analysis of the Nigella seed oils revealed the content of linoleic acid to be the highest (40.3–58.9%). Other prominent fatty acids were as follows: oleic (18.7–28.1%), palmitic (10.1–12.5%), 22:1 D11 (3.2–3.8%) and stearic (2.6–3.1%) acids. All the Nigella seed oils analysed exhibited differences in their tocopherol contents and the differences were estimated. The oils extracted from the seeds contained between 1.70–4.12 mg/100 g α-T, 0.97–4.51 mg/100 g γ-T, and 4.90–17.91 mg/100 g β-T3. The total tocopherol content in seeds varied between 9.15 mg/100 g to 24.65 mg/100 g. The compositions of the sterol fractions were determined by gas liquid chromatography. The total amounts of sterols ranged between 1993.07 mg/kg to 2182.17 mg/kg. The main component was β-sitosterol (48.35–51.92%), followed by 5-avenasterol, campesterol, and stigmasterol.

Current Developments in the Modification of Oilseed Composition

1995 ◽  
Vol 24 (4) ◽  
pp. 213-218 ◽  
Author(s):  
Samuel L. Mackenzie
Keyword(s):  
Seed Oil ◽  
Plant Biotechnology ◽  
Edible Oil ◽  
Seed Oils ◽  
High Oleic Acid ◽  
Plant Seed ◽  
Oilseed Crops ◽  
High Oleic ◽  
New Crops ◽  
Unusual Fatty Acids

Developments in plant cell and tissue culture, and in gene manipulation techniques, have provided new tools for generating novel plant phenotypes not attainable solely by traditional selection breeding. Driven by the industrial potential, advances in fundamental plant biotechnology are now being directed to the development of new crops with seed oil compositions targeted towards specific applications. The targets encompass both the edible oil and chemical industries, the latter emphasizing those oils which contain unusual fatty acids with functionalities applicable to specific industrial uses. Traditional concepts of the compositions of plant seed oils must be set aside to embrace a new reality in which a high oleic acid oil can be produced in several current oilseed crops.

scholarly journals Characterization of fatty acid, antioxidant, and polyphenol content of grape seed oil from different Vitis vinifera L. varieties

OCL ◽  
2021 ◽  
Vol 28 ◽  
pp. 30
Author(s):  
Viktória Kapcsándi ◽  
Erika Hanczné Lakatos ◽  
Beatrix Sik ◽  
László Ádám Linka ◽  
Rita Székelyhidi
Keyword(s):  
Seed Oil ◽  
Grape Seed ◽  
Seed Oils ◽  
Grape Seeds ◽  
Polyphenol Content ◽  
Total Polyphenol ◽  
Total Polyphenol Content ◽  
Grape Seed Oil ◽  
Total Antioxidant ◽  
Grape Varieties

In this study, we examined the yield and oil quality of eight different grape varieties. For the experiments, the grape seeds were obtained from the Benedictine Pannonhalma Archabbey in the northwestern region of Hungary. The aim of the studies was to determine the oil yield obtained by extraction and to examine the differences between the fatty acid composition, antioxidant capacity, and total polyphenol content of the oils of different grape varieties. Based on the results, the oil content of the grape seeds varied between 99.91 g/kg and 126.74 g/kg. The grape seed oils analysed contained significant amounts of stearic acid (3.42–9.93%), palmitic acid (7.81–10.66%), oleic acid (14.29–19.92%), and linoleic acid (66.85–72.47%). Besides, the grape seed oils tested contained several other fatty acids in small amounts. There were significant differences in the total antioxidant and total polyphenol content of the oils. Total polyphenol content ranged from 0.24 to 1.13 mg GAE/g, while the total antioxidant content changed between 0.12 and 0.78 μg TEAC/g. The results show that the studied varieties are suitable for the production of table grape seed oil based on their oil yield, and the oils have favourable, health-protecting properties in terms of their quality.

scholarly journals Functional Properties of Neem Oil as Potential Feedstock for Biodiesel Production

2015 ◽  
Vol 34 ◽  
pp. 7-14
Author(s):  
Prithviraj Bhandare ◽  
G.R. Naik
Keyword(s):  
Seed Oil ◽  
Fossil Fuel ◽  
Raw Material ◽  
Biodiesel Production ◽  
Seed Oils ◽  
Neem Oil ◽  
Chemical Parameters ◽  
Saponification Value ◽  
Neem Seed Oil ◽  
Biodiesel Fuels

Fossil fuel resources are decreasing daily while biodiesel fuels are attracting increasing attention worldwide as blending components or direct replacements for diesel fuel in vehicle engines. In this experiment the seed oils of 30 Neem (Azadirachta indica. A. juss) biotypes were screened and evaluated for their physio-chemical parameters for oil content, biodiesel yield, density, viscosity, iodine value , free fatty acid and saponification value. Hence the neem seed oil tested in this current study could be the potential sources of raw material for biodiesel production.

scholarly journals Fatty Acids, Tocopherols, and Phytosterol Composition of Seed Oil and Phenolic Compounds and Antioxidant Activity of Fresh Seeds from Three Dalbergia Species Grown in Vietnam

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 542
Author(s):  
Thi Thuy Nguyen ◽  
Lan Phuong Doan ◽  
Thu Huong Trinh Thi ◽  
Hong Ha Tran ◽  
Quoc Long Pham ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Seed Oil ◽  
Radical Scavenging ◽  
Sterol Composition ◽  
Total Phenolic ◽  
Seed Oils ◽  
Free Radical Scavenging Assay ◽  
Phytosterol Composition

This research aimed to investigate the chemical composition of seed oils extracted from three Vietnamese Dalbergia species (D. tonkinensis, D. mammosa, and D. entadoides). The fatty acid profiles and contents of tocopherols and sterols of the seed oils, and total phenolic compounds extracted from the fresh seeds were characterized using different methods. Among the examined samples, D. tonkinensis seed oils showed high contents of linoleic acid (64.7%), whereas in D. mammosa, oleic acid (51.2%) was predominant. In addition, α- and γ-tocopherol and β-sitosterol were major ingredients in the seed oils, whereas ferulic acid and rosmarinic acid are usually predominant in the seeds of these species. Regarding sterol composition, the D. entadoides seed oil figured for remarkably high content of Δ5,23-stigmastadienol (1735 mg/kg) and Δ7-stigmastenol (1298 mg/kg). In addition, extracts with methanol/water (80:20, v/v) of seeds displayed significant in vitro antioxidant activity which was determined by DPPH free radical scavenging assay.

Sign in / Sign up

Export Citation Format

Share Document