Composition of the seed oil of sterculia foetida, Linn

Varma, J. P.; Dasgupta, Sharda; Nath, Bhola; Aggarwal, J. S.

doi:10.1007/bf02638003

Cited by 19 publications

(6 citation statements)

References 10 publications

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“…The presence of the 20-and 22carbon esters leads to a very high viscosity in the biodiesel from jojoba oil [128]. The oil of S. foetida is known to contain 72% of sterculic acid, a 19-carbon cyclopropenyl fatty acid, which has been said to undergo explosive polymerization when heated to 240 C [163,164]. However, the reference listed in Table 1 [62] does not mention sterculic acid and the material was used safely in an engine.…”

Section: Unusual Lipids and Fatty Acidsmentioning

confidence: 99%

Alternative crops for biodiesel feedstock.

Razón¹

2009

CABI Reviews

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Biodiesel, the name popularly given to fatty acid alkyl esters, has become an attractive option for the replacement of petroleum diesel ('petrodiesel'). While its overall impact on the greenhouse effect continues to be debated, other qualities of biodiesel are unquestioned. Biodiesel is biodegradable, generally non-toxic and has superior lubricity to petrodiesel. Overall emissions are greatly reduced. The bulk of the feedstock for its production comes from renewable resources and when biodiesel is used as a blend (up to 20%); no changes are required for existing diesel engines. However, it is still too costly and about 60-80% of the cost for biodiesel comes from the feedstock. Concerns have been raised about the propriety of using food for fuel. Proposed alternative feedstock such as Jatropha curcas address some of these concerns but have their own disadvantages. This paper is a comprehensive review of recent progress on alternative crops for feedstock and addresses the issues that may ultimately lead to their success or failure: engine performance, yield, fatty acid profile, unique minor components, unique fatty acids, toxicity and harvestability. The use of agricultural wastes, used or waste oil and microbial fats is also discussed. The conclusion is reached that a blend of oils and used oils may be the best approach for the immediate future while genetically modified plants and microalgae may provide a longer term solution.

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Section: Unusual Lipids and Fatty Acidsmentioning

confidence: 99%

Alternative crops for biodiesel feedstock.

Razón¹

2009

CABI Reviews

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“…The structure of w-(2-n-octylcycloprop-l-enyl)octanoic acid (LVIII) was assigned to sterculic acid on the basis of the reactions (196) shown in Scheme II. Varma and his co-workers (262,264,265) rejected this structure and instead proposed the structure «-(2-nhexylcyclopropyl)dec-9-enoic acid (LIX) on the basis of an incorrect interpretation of infrared data, the supposed synthesis of the methyl ester of the acid of structure LVIII, and the isolation of certain compounds from the oxidation of the isolated acid. Their propane ring and to the double bond in the chain (264).…”

Section: Proof Of Structurementioning

confidence: 99%

“…were reported (260) to be synthesized by the reaction of diazomethane with the appropriate unsaturated acid (stearolic, oleic, behenolic, and erucic acids). The ch2…”

Section: Proof Of Structurementioning

confidence: 99%

“…infrared absorption spectra obtained for the synthesized compounds which were thought to be cyclopropenes and cyclopropanes were compared with those for sterculic and dihydrosterculic acids. Since the spectra were found to be different, the Indian workers (260) concluded that sterculic acid could therefore not be compound A. Other workers indicated that the cyclopropene and cyclopropane acids (A-D) could not be synthesized by the action of diazomethane on the appropriate unsaturated acid and that only the carboxyl groups of the initial acids had been esterified (45).…”

Section: Proof Of Structurementioning

confidence: 99%

See 1 more Smart Citation

Review of the Chemistry of Cyclopropene Compounds

Carter¹,

Frampton²

1964

Chem. Rev.

150

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“…The most potent of the fatty acid tested was sterculic acid which is a ω-9 cyclopropene fatty acid originally found in the seeds of plant Sterculia foetida [27]. This plant is suspected of having numerous medicinal properties [28, 29].…”

Section: Introductionmentioning

confidence: 99%

Sterculic acid antagonizes 7-ketocholesterol-mediated inflammation and inhibits choroidal neovascularization

Huang

Amaral

Lee

et al. 2012

Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biolog

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Sterculic acid is a cyclopropene fatty acid with numerous biological activities. In this study we demonstrate that sterculic acid is a potent inhibitor of endoplasmic reticulum (ER) stress and related inflammation caused by 7-ketocholesterol (7KCh). 7KCh is a highly toxic oxysterol suspected in the pathogenesis of various age-related diseases such as atherosclerosis, Alzheimer’s disease and age-related macular degeneration. Sterculic acid demonstrated to be 5–10 times more effective than other anti-inflammatory fatty acids at inhibiting 7KCh-mediated inflammatory responses in cultured cells. In vivo, sterculic acid was effective at inhibiting the formation of choroidal neovascularization (CNV) in the laser-injury rat model. Our data suggests that sterculic acid may be useful in treating CNV in certain forms of age-related macular degeneration.

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Composition of the seed oil of sterculia foetida, Linn

Cited by 19 publications

References 10 publications

Alternative crops for biodiesel feedstock.

Alternative crops for biodiesel feedstock.

Review of the Chemistry of Cyclopropene Compounds

Sterculic acid antagonizes 7-ketocholesterol-mediated inflammation and inhibits choroidal neovascularization

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