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.

Hibiscus esculentus Seed Oil – A Reinvestigation

Abstract: Seed oil of H. esculentus contains both cyclopropene (malvalic 0.9% and sterculic 0.3%) and cis-12,13-epoxyoleic (10.1%0 acids besides the other usual fatty acids. Characterization of HBr-reactive acids was done by the use of chromatographic, spectroscopic and chemical methods. Quantitation of cyclopropene and vernolic acids has been done collectively by the HBr titration, preparative TLC and GLC analysis. Seed oils of Vernonia anthelmintica and Sterculia foetida were used reference samples. Saatol von Hibiscus esculentus - Eine erneute Untersuchung Das Saatol von H. esculentus enthalt zwei Cyclopropensauren (Malvalsaure 0.9% und Sterculsaure 0.3%) und cis-12, 13-Epoxyolsaure (10.1%) neben anderen normalen Fettsauren. HBr-reaktive Sauren wurden mittels chromatographischer, spektroskopischer und chemischer Methoden charakterisiert. Die quantitative Bestimmung der Cyclopropensauren und Vernolsaure erfolgte gemeinsam durch HBr-Titration, praparative DC und GC-Analyse. Die Saatole von Vernonia anthelmintica und Sterculia foetida wurden als Referenzproben benutzt.

Phytochemical Screening on the Successive Extracts of Bark of Sterculia Foetida Linn.

Abstract: Sterculia foetida is important medicinal plant having wide range of therapeutic values on different parts of the plant. The present study describes the phytochemical profile of the bark. The bark of Sterculia foetida is collected, dried, powdered and extracted using solvents such as n-hexane, chloroform, ethyl acetate and ethanol successively. Qualitative and quantitative phytochemical screenings of the extracts were carried out and it revealed the presence of chemical constituents like alkaloids, flavonoids, phenols, triterpenoids, tannins and steroids. HPLC and HPTLC analysis were carried out for the quantification of active constituents in the extracts.

Investigation on the effect of ultrasound irradiation on biodiesel properties and transesterification parameters

Abstract: This work examines the effect of ultrasound irradiation (UI) on biodiesel properties and transesterification parameters. Methanol content, reaction time, reaction temperature, and catalyst concentration are varied, and the optimum condition for maximum possible yield was held constant for both processes. Biodiesel obtained from non-edible oils is the most promising alternative fuel for conventional diesel fuel. In this study, sterculia foetida seed oil was used for biodiesel production. Sterculia foetida oil was transesterified to lower its FFA using UI and compared with the conventional process. Both heating processes were optimized to yield a maximum of 94.3% at a six molar ratio, 50 °C, (water temp), 1% wt of catalyst (KOH), and 75 min reaction time. Transesterification by UI reduced the total reaction time to 4 min compared to 75 min at the conventional process. Further UI influenced the properties of biodiesel (SOBD) from SO. UI lowered viscosity by 7.3% and density by 5.5% and facilitated using oxygen content of SOBD.

Efficient Alkaline Peroxide Pretreatment of Sterculia foetida Fruit Shells for Production of Reducing Sugar: Effect of Process Parameters on Lignin Removal

Abstract: The efficient delignification of low-cost lignocellulosic biomass is of utmost importance for its viable conversion to biofuel. In the current study, agricultural waste biomass of Sterculia foetida fruit shell was pretreated by heating at 60 ℃ and 121 ℃ in the presence of alkaline and alkaline peroxide conditions. The objective was to study the effects of concentration of NaOH & H2O2 and temperature on lignin removal efficiency and reducing sugar content. The structural and functional changes caused to the biomass were also studied using FTIR and XRD analysis. The optimum lignin removal of 81.66% was achieved by heating at 60 ℃ for 3 hours using 3% H2O2 and 5% NaOH aqueous solution showing an increase in crystallinity of the pretreated samples, removal of lignin as well as easy accessibility of cellulose and also indicates reduction of yield due to in situ degradation of the released sugars in the presence of NaOH and H2O2 at higher chemical concentrations. The developed pretreatment procedure showed appreciable delignification of the biomass which could be easily scaled up for continuous operations at low costs.