Vernonia oil obtained by Soxhlet extraction from the seeds of Vernonia galamensis ssp. nairobensis was reacted with 2-aminopyridine, 2-(aminomethyl)pyridine and 2(aminoethyl)pyridine using a 1:3 mole ratio of vernonia oil to amine at varied temperatures to give the corresponding vernolamides. The expected vernolamide from the reaction of 2-aminopyridine and the oil was not formed. N-(2-pyridiny...

Soil and sediment collected in the vicinity of an open electronic waste disposal and recycling facility located in Guiyu, Guangdong, China, were analyzed for the levels of common polybrominated diphenyl ethers (PBDEs) by using soxhlet extraction and gas chromatography/mass spectrometry. The PBDEs were detected in the soil and sediment samples at levels of 0.26-824 ng/g (dry weight). The obtaine...

The physicochemical parameters of oil extracted from the seeds of Ceiva pentandra Linn were determined and compared with those recommended by the international codex standards for edible oils. The seeds were soxhlet extracted using n – hexane to render 24% light yellow crude oil, whose density was 0.91 g/cm. The physicochemical analysis carried out on the crude lipid showed that the oil has the...

the effect of soxhlet and simple immersion extraction methods on the amount and type of bioactive phenolic compounds of c. arizonica woodknots were studied. lipophilic and hydrophilic compounds were soxhlet extracted according to t280 pm-99 standard method with hexane and acetone solvents, respectively.  also, in the immersion method woodknot samples were dipped in hexane to remove the lipophil...

The objective of this research is to implement extraction and degradation methods for the obtainment of 3-O-[α-l-rhamnopyranosyl-(1→2)-β-d-galactopyranosyl] soyasapogenol B (chickpeasaponin B1) from chickpea. The effects of microwave-assisted extraction (MAE) processing parameters-such as ethanol concentration, solvent/solid ratio, extraction temperature, microwave irradiation power, and irradi...

Many novel techniques of extraction such as solvent extraction by soxhlet, ultrasonication and extraction by boiling of licorice have been well developed. But ultrasonication has been proved as the best and relevant method for extraction of the glycyrrhizin. To optimize the process conditions for the maximum yield of the glycyrrhizin and easier purification, three types of solvents were employe...

Peanut (Arachis hypogea L.) industrial processing generates underused by-products, which are mostly discharged. In this work, extracts from peanut by-product were obtained by Supercritical Fluid Extraction (SFE), Pressurized Liquid (PLE) and Subcritical Water (SWE), compared to Soxhlet (SOX). Yield values varied 12.94% 37.65% for SOX-water SWE, respectively. The quality of the was evaluated tot...

The aim of this work is to compare the extraction efficiencies of microwave and conventional isolation of mangiferin from Mangifera indica L. The parameters studied, which might affect the extraction efficiency were extraction time, solvent composition and microwave power. The conventional heating 21 h provided 5.23 % yield of mangiferin and by microwave heating at 210 W for 56 min, the yield w...