A continuous process for the glycerolysis of soybean oil with pure and crude glycerol, the co-productfrom the rransesteriiication of soybean oil was invesligated i n a pilot plan(. Thc placess was equipped with a motionless and a high-shear mixer. The experimental studies explored the effectc of variations i n mixing inlensiLy, remperature, reactant flow rates, and reactant stoichiometry on the...

In recent years, glycerol has become an attractive carbon source for microbial processes, as it accumulates massively as a by-product of biodiesel production, also resulting in a decline of its price. A potential use of glycerol in biotechnology is the synthesis of poly(3-hydroxypropionate) [poly(3HP)], a biopolymer with promising properties which is not synthesized by any known wild-type organ...

The archaeon Haloferax mediterranei was selected for production of PHA co- and terpolyesters using inexpensive crude glycerol phase (CGP) from biodiesel production as carbon source. CGP was assessed by comparison with the application of pure glycerol. Applying pure glycerol, a copolyester with a molar fraction of 3-hydroxybutyrate (3HB) of 0.90 mol/mol and 3-hydroxyvalerate (3HV) of 0.10 mol/mo...

Hirsutella thompsonii # 966 was cultured and extracted with ethyl acetate. The ethyl acetate layer was then eluted on Sephadex LH-20 column with methanol and the eluted chemical components were analyzed on a Bruker DRX 400 NMR spectrophotometer. The analysis showed several components such as glycerol, ergosterol and diketopiperazine. This was the first time that diketopiperazine had been isolat...

The dicarboxylic acid malic acid synthesized as part of the tricarboxylic acid cycle can be produced in excess by certain microorganisms. Although malic acid is produced industrially to a lesser extent than citric acid, malic acid has industrial applications in foods and pharmaceuticals as an acidulant among other uses. Only recently has the production of this organic acid from coproducts of in...

The crude oil of Malaysian castor bean ricinus communis L. seed was extracted by Soxhlet method using hexane. The physicochemical characteristics of castor bean oil were evaluated. The results showed that Malaysian castor seeds contain a relatively high percentage of total lipids content; 43.3% (per dry weight), high iodine value (84.5 mg/g) and saponification value (182.96 mg/g). The seed oil ...