Optimization of gas chromatographic–mass spectrometric analysis for fatty acids in hydrogenated castor oil obtained by catalytic transfer hydrogenation

Schneider, Rosana de Cássia de Souza; Baldissarelli, Vanessa Zanon; Trombetta, Fabiane; Martinelli, Márcia; Caramão, Elina Bastos

doi:10.1016/j.aca.2003.10.070

Cited by 34 publications

(8 citation statements)

References 24 publications

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“…The FAs found to be present in CO are RA, linoleic acid, oleic acid, stearic acid and linolenic acid. Approximately 84–90% of the FAs is RA and 10–16% consists of the other FAs (table 4) [22,27,28,57,58]. The FA compositions varied only slightly from different countries.…”

Section: Chemical Composition and Structure Of Castor Oilmentioning

confidence: 99%

Castor oil: a suitable green source of capping agent for nanoparticle syntheses and facile surface functionalization

2018

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Castor oil (CO) is an inedible vegetable oil (VO) that has been employed extensively as a bioresource material for the synthesis of biodegradable polymers, cosmetics, lubricants, biofuels, coatings and adhesives. It is used in medicine, pharmaceuticals and biorefineries, due to its versatile chemistry. However, there has been less focus on CO as an alternative to toxic and expensive solvents, and capping/stabilizing agents routinely used in nanoparticle syntheses. It provides a richer chemistry than edible VOs as a solvent for green syntheses of nanoparticles. CO, being the only rich source of ricinoleic acid (RA), has been used as a solvent, co-solvent, stabilizing agent and polyol for the formation of polymer–nanoparticle composites. RA is a suitable alternative to oleic acid used as a capping and/or stabilizing agent. Unlike oleic acid, it provides a facile route to the functionalization of surfaces of nanoparticles and the coating of nanoparticles with polymers. For applications requiring more polar organic solvents, RA is more preferred than oleic acid. In this review, we discuss the production, chemical and physical properties, triglyceride and fatty acid (FA) compositions and applications of CO, focusing on the use of CO and RA as well as other VOs and FAs in syntheses of nanoparticles and surface functionalization.

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Section: Chemical Composition and Structure Of Castor Oilmentioning

confidence: 99%

Castor oil: a suitable green source of capping agent for nanoparticle syntheses and facile surface functionalization

2018

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“…This was allowed to continue for 3 h so as to maximize the oil yield. The experiment was repeated by placing 10 g of the sample into the thimble again [11].…”

Section: Extraction Of Castor Oilmentioning

confidence: 99%

“…The percentage composition of fatty acids in the castor oil was determined by the Shimadzu Gas Chromatograph-Mass Spectrometer (GCMS-QP 2010 Plus) at the chemistry department using standard Fatty Acid Methyl Esters (FAMEs) [11]. The retention time and peak height/area were used in qualitative and quantitative determination of the castor oil components.…”

Section: Determination Of Percentage Composition Of Fatty Acid In Casmentioning

confidence: 99%

Fatty Acid Profile and Physico-Chemical Parameters of Castor Oils in Tanzania

Omari¹,

Mgani²,

Mubofu³

2015

GSC

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“…2b) was extracted with n-hexane using a Soxhlet apparatus (70 °C, 8 h, 5% extraction yield). After removing n-hexane using a rotary evaporator, the obtained oily mixture was treated with sodium methoxide, according to the Standard ISO 5509:2000 (ISO2000) to produce the corresponding methyl esters by the trans-esterification reaction (de Souza Schneider et al 2004). Briefly, a drop of the obtained oil was dissolved in n-heptane (1.0 mL) and then, sodium methoxide (50 μg) and water (100 μL) were added to the mixture.…”

Section: Fatty Acid Composition Extraction Of Seed Oilmentioning

confidence: 99%

Phytochemical and antioxidant studies of Cleome heratensis (Capparaceae) plant extracts

Nasseri

Behravesh

Allahresani

et al. 2019

Bioresour. Bioprocess.

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Background: In this research, different active phytochemical constituents present in Cleome heratensis (C. heratensis) from Capparaceae family were investigated. Moreover, the fatty acids present in the seed and aerial parts of the plant were identified by gas chromatography (GC) after esterification of the oil. Antioxidant activity of the aerial parts and seed of C. heratensis methanolic extract over 2,2′-diphenylpicryl-1-hydrazyl (DPPH) was investigated using ultravioletvisible (UV-Vis) spectrophotometer. Methods: To study total phenolic compounds and flavonoids, the plant was extracted from ethanol by ultrasonic method, then further extracted with other solvents. Amounts of anthocyanins and tannins/condensed tannins were determined by their corresponding ethanolic and acetone extracts. Antioxidant activity of the plant species was studied by a spectrophotometric method using 80% methanolic extract. Results: The high content of phenolics as 16.915 mg tannic acid equivalents per gram of dry matter (TAE/g DM), tannins (12.231 mg TA/gr DM) and condensed tannins (4.086 mg TA/g DM) was obtained for the C. heratensis extract. The most flavonoids content was found 4.444 rutin equivalents (in mg) per gram of dry matter (mg RE/g DM) in plant's aerial extract. The most amount of anthocyanin (0.48 mmol/gr WM) was observed in flowering stage. Antioxidant activity of the aerial parts and seed of C. heratensis methanolic extract were 11.92 and 63.54 mg/mL IC 50 , respectively. Conclusion: High level of phenolic components including flavonoids, proanthocyanidins and tannins was detected in the extract of aerial parts of the plant. The oil of seed of this plant is a rich source of saturated and unsaturated fatty acids. Finally, C. heratensis aerial part extract was found as an excellent natural antioxidant.

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Optimization of gas chromatographic–mass spectrometric analysis for fatty acids in hydrogenated castor oil obtained by catalytic transfer hydrogenation

Cited by 34 publications

References 24 publications

Castor oil: a suitable green source of capping agent for nanoparticle syntheses and facile surface functionalization

Castor oil: a suitable green source of capping agent for nanoparticle syntheses and facile surface functionalization

Fatty Acid Profile and Physico-Chemical Parameters of Castor Oils in Tanzania

Phytochemical and antioxidant studies of Cleome heratensis (Capparaceae) plant extracts

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