Utilization of two modified layered doubled hydroxides as supports for immobilization of Candida rugosa lipase.

In this study, two synthetic layered doubled hydroxides (LDH), including Mg/Al-CO-LDH (LDH1) and Zn/Al-CO-LDH (LDH2), were prepared using the co-precipitation method and modified with sodium dodecyl sulfate to be utilized as carriers for immobilization of Candida rugosa lipase via the adsorption. The activity of prepared biocatalysts was measured in the olive oil hydrolysis. The effects of lipase concentration, pH, storage stability and thermal resistance of the samples were also studied.

Performance evaluation of a bipolar electrolysis/electrocoagulation (EL/EC) reactor to enhance the sludge dewaterability.

The present study aimed to evaluate the performance of a bipolar electrolysis/electrocoagulation reactor designed to enhance the sludge dewaterability. The reactor was 15 L in volume, with two series of plates used in it; Ti/RuO(2) plates for the electrolysis of the sludge, and also aluminum and iron plates for electrocoagulation process. The dewaterability of the sludge was determined in terms of its capillary suction time (CST) and specific resistance to filtration (SRF), while the degree of sludge disintegration was determined based on the value of degree of sludge disintegration (DD(SCOD)).

Effect of short term treatment of L-carnitine on tissue ACE activity in streptozotocin-induced diabetic rats.

Diabetes is commonly related to the both microvascular as well as macrovascular complications. It appears that both metabolic and hemodynamic factors interact to create these problems. In this study the effects of orally administered L-carnitine, a natural amino acid, on ACE activity in streptozotocin (STZ)-induced diabetic rats were investigated.