Topic
Sterculia foetida
About: Sterculia foetida is a research topic. Over the lifetime, 166 publications have been published within this topic receiving 2532 citations. The topic is also known as: Bastard poon tree & Hazel sterculia.
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TL;DR: The synergistic activities of cyclopropenoid fatty acids, epoxyoleic acid, sesame seed oil, and autoxidized salmon oil with aflatoxin B1 were studied in rainbow trout, which promoted early tumor development, increased tumor incidence, and caused a severalfold increase in tumor growth rate over the positive control.
Abstract: Summary The synergistic activities of cyclopropenoid fatty acids (CPFA), epoxyoleic acid, sesame seed oil, and autoxidized salmon oil with aflatoxin B1 were studied in rainbow trout. Sterculia foetida oil (49% sterculic, 7% malvalic acids) and Hibiscus syriacus oil (2% sterculic and 19% malvalic acids) were used as sources of CPFA. The combination of both 112 and 56 ppm CPFA procured from S. foetida oil and 210 ppm CPFA procured from H. syriacus oil promoted early tumor development, increased tumor incidence, and caused a severalfold increase in tumor growth rate over the positive control. Trout fed 100 ppm 2-acetylaminofluorene for 15 months did not develop hepatomas, but the addition of H. syriacus oil to the diet induced a 20% incidence of liver tumors. Diets containing 200 ppm epoxyoleic acid (in Vernonia anthelmintica oil), 5% sesame seed oil, or 5% autoxidized salmon oil (peroxide value 200–300) did not alter the carcinogenicity of aflatoxin B1. Some unusual lipid deposits were noted in the livers of fish receiving sesame seed oil.
88 citations
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TL;DR: The cyclopropenoid acids were characterized by hydrogenation in conjunction with gas-liquid chromatography and by oxidation to β-dioxo acids with subsequent cleavage with peracetic acid.
Abstract: Evidence is provided that sterculic and malvalic acids occur together in seed oils ofSterculia foetida, Hibiscus syriacus, andLavatera trimestris. Sterculia foetida oil contains 54.5% sterculic and 6.7% malvalic acids;Hibiscus syriacus oil contains 16.3% malvalic and 3.4% sterculic; andLavatera trimestris oil contains 7.7% malvalic and 0.6% sterculic acids.Hibiscus syriacus oil also contains 1.5% dihydrosterculic acid. The cyclopropenoid acids were characterized by hydrogenation in conjunction with gas-liquid chromatography and by oxidation to β-dioxo acids with subsequent cleavage with peracetic acid. Acetolysis of epoxides in the presence of cyclopropenes was effected by room temperature treatment with acetic acid-10% sulfuric acid (5∶2).
84 citations
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TL;DR: These formed Ag-PL NPs showed potential mosquito larvicidal activity against Aedes aegypti, Anopheles stephensi Liston and Culex quinquefasciatus Say and can also act as promising agents in cancer therapy.
83 citations
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TL;DR: In this article, the preparation of biodiesel from S. foetida oil using sodium hydroxide as catalyst was reported and the resultant biodiesel was evaluated for physico-chemical properties.
Abstract: Sterculia foetida oil contains cyclopropene fatty acids namely 8,9-methylene-heptadec-8-enoic acid (malvalic) and 9,10-methylene-octadec-9-enoic acid (sterculic) to an extent of 50–55%. The present study reports the preparation of biodiesel from S. foetida oil using sodium hydroxide as catalyst. The resultant biodiesel was evaluated for physico-chemical properties namely iodine value (72.6), free fatty acids (0.17%), phosphorous content (0 ppm), flash point (179 °C), cloud point (3 °C), pour point (3 °C), viscosity at 40 °C (4.72 cSt), oxidative stability at 110 °C (3.42 h), density (0.850 g/cm3 at 15 °C), and trace metals (Group I metals 0.21 ppm). The properties were compared with that of sunflower, soybean and rapeseed oil-based biodiesels and found to be comparable except for the pour point.
69 citations
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TL;DR: Sterculic and malvalic acids are the only fatty acids known to contain a cyclo-propene ring in their structures and the occurrence of both acids in the seeds of Sterculia foetida and two species of Malvaceae is reported.
Abstract: STERCULIC and malvalic acids are the only fatty acids known to contain a cyclo-propene ring in their structures. From the seed oil of Sterculia foetida (Sterculiaceae), Nunn1 isolated sterculic acid (C19) and defined its structure. Malvalic acid (C18) isolated from Malvaceae by Shenstone and Vickery2 has been structurally identified by Macfarlane, Shenstone and Vickery3 and Craven and Jeffrey4. Afterwards we reported5 the occurrence of minor amounts of sterculic acid associated with malvalic acid in the oils from some malvaceous plants. The occurrence of both acids in the seeds of Sterculia foetida and two species of Malvaceae has also been observed by C. R. Smith, jun., T. L. Wilson and K. L. Mikolajczak (private communication).
66 citations