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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01 Jan 1962
7 citations
TL;DR: In this article, an experimental study to modify Sterculia foetida L. oil (STO) or the corresponding methyl esters to branched ester derivatives is reported, which involves conversion of the cyclopropene rings in the fatty acid chains of STO through various catalytic as well as stoichiometric reactions.
Abstract: An experimental study to modify Sterculia foetida L. oil (STO) or the corresponding methyl esters (STO FAME) to branched ester derivatives is reported. The transformations involve conversion of the cyclopropene rings in the fatty acid chains of STO through various catalytic as well as stoichiometric reactions. Full conversion of the cyclopropene rings was obtained using DielsAlder chemistry involving cyclopentadiene in water at 40 degrees C without the need for a catalyst. Olefin metathesis reactions were performed using a Grubbs 2nd generation catalyst and cyclopropene ring conversion was =99 and 54 mol% with 2,3-dimethyl-2-butene and 1-octene, respectively. Oxidation reactions were performed using established epoxidation (Sharpless) and dihydroxylation (Prilezhaev) protocols using aqueous hydrogen peroxide as the oxidant. For both reactions, full conversion of the cyclopropene rings was obtained at RT to yield the corresponding a,beta-unsaturated ketone in good selectivities. Rearrangement reactions of the cyclopropene rings to the corresponding conjugated diene were successfully performed using homogeneous and heterogeneous palladium catalysts. Excellent conversions (=99%) were obtained using homogeneous palladium catalyst in a biphasic cyclohexanewater mixture (1:1) at 90 degrees C. Relevant cold flow properties of all products were determined and compared to crude STO and STO FAME. Best results were obtained for the metathesis products of STO with 1-octene, with a cloud point (CP) and pour point (PP) of -12 degrees C.
6 citations
03 Jun 2021
TL;DR: A qualitative phytochemical analysis was performed to assess the metabolites in a methanolic extract of S. foetida seeds (MESF), and the cytotoxic, thrombolytic, anti-arthritics, analgesic, and antipyretic activities were examined using in vitro, in vivo, and in silico experiments as discussed by the authors.
Abstract: Sterculia foetida, also known as jangli badam in Bangladesh, is a traditionally used plant that has pharmacological activities. A qualitative phytochemical analysis was performed to assess the metabolites in a methanolic extract of S. foetida seeds (MESF), and the cytotoxic, thrombolytic, anti-arthritics, analgesic, and antipyretic activities were examined using in vitro, in vivo, and in silico experiments. Quantitative studies were performed through gas chromatography-mass spectroscopy (GC-MS) analysis. The brine shrimp lethality bioassays and clot lysis were performed to investigate the cytotoxic and thrombolytic activities, respectively. The anti-arthritics activity was assessed using the albumin denaturation assay. Analgesic activity was determined using the acetic acid-induced writhing test and the formalin-induced paw-licking test. A molecular docking study was performed, and an online tool was used to perform ADME/T (absorption, distribution, metabolism, and excretion/toxicity) and PASS (Prediction of Activity Spectra for Substances). GC-MS analysis identified 29 compounds in MESF, consisting primarily of phenols, terpenoids, esters, and other organic compounds. MESF showed moderate cytotoxic activity against brine shrimp and significant thrombolytic and anti-arthritics activities compared with the relative standards. The extract also showed a dose-dependent and significant analgesic and antipyretic activities. Docking studies showed that 1-azuleneethanol, acetate returned the best scores for the tested enzymes. These findings suggested that MESF represents a potent source of thrombolytic, anti-arthritic, analgesic, antipyretic agents with moderate cytotoxic effects.
6 citations
TL;DR: Powdered seed of Sterculia foetida (Sterculiaceae) were subjected to successive Soxhlet extraction with chloroform, ethanol and finally with water to get their respective extracts for detailed chemical analysis as discussed by the authors.
Abstract: Powdered seed of Sterculia foetida (Sterculiaceae) were subjected to successive Soxhlet extraction with chloroform, ethanol and finally with water to get their respective extracts for detailed chemical analysis. Fluorescence character of different extracts and seed powder with various reagents were noted under UV and under normal ordinary light. The total ash value, acid insoluble ash value and water soluble ash value were 3.9, 0.76 and 0.84%, respectively. Loss of weight on drying was 7.65%, the percent yield for chloroform, ethanol, water extracts were 14, 21, 29%, respectively. Preliminary qualitative chemical analysis of extract was found positive for flavonoids, saponins and alkaloids in ethanol extracts. These studies provide referential information for correct identification and standardization of this plant material.
6 citations
TL;DR: Yolk index, Haugh units, and pH of yolks and whites were used as criteria for comparisons of physical changes and were not intended to describe egg quality.
6 citations