Entrapment of lipase from Candida antarctica in a xerogel for the production of biodiesel from waste cooking oil.

The process to synthesize biodiesel is well-developed and optimized to overcome the disadvantages like the competition with agriculture using feedstock, and the problematics in the process. Oils from waste and enzymatic catalysis have proven to be good solutions to these problems. Lipases are currently the most commonly used enzymes in the transesterification of oils; nevertheless, enzymes have a high cost and must be immobilized to offer repetitive reuse.

High-throughput strategies for the discovery and engineering of enzymes for biocatalysis.

Innovations in novel enzyme discoveries impact upon a wide range of industries for which biocatalysis and biotransformations represent a great challenge, i.e., food industry, polymers and chemical industry.

Feasibility study of date (Phoenix dactylifera L.) fruit syrup-based natural jelly using central composite design.

A feasibility study of natural fruit jelly from three Algerian raw materials, namely date (Phoenix dactylifera l.) fruit syrup and suspension of orange albedo powder (OAP) in lemon juice (LJ) was performed by response surface methodology (RSM) based on central composite design (CCD). The textural properties of the final jelly were investigated through two dependent variables: hardness and stickiness.

Efficient size control of amphiphilic cyclodextrin nanoparticles through a statistical mixture design methodology.

Purpose: the aim of the study was to investigate size control of amphiphilic beta-cyclodextrin nanoparticles obtained by solvent displacement technique.

Methods: An experimental design methodology for mixture design was undertaken using D-optimal approach with the following technique variables: water fraction X1 (40-70% v/v), acetone fraction X2 (0-60% v/v) and ethanol fraction X3 (0-60% v/v).

Results: The resulting quadratic model obtained after logarithmic transformation of data and partial least-square regression was statistically validated and experimentally checked.