Adhesion and subsequent growth of microorganisms on material surfaces are a major concern in many biomedical applications. Currently, various polymers are immobilized on material surfaces to prevent microbial colonization. However, there are several challenges with regard to the coating materials, including their inability to kill microorganisms, complexity of surface grafting, limited durabili...

Biodiesel is an attractive alternative fuel because of its nontoxicity and biodegradability properties. Biodiesel is produced through transesterification of vegetable oils’ triglyceride. It is obtained from vegetable oils or fats either by chemical or enzyme-catalyzed transesterification with methanol or ethanol. By using whole-cell biocatalyst immobilized within biomass support particles (BSPs...

Introduction: Staphylococcus aureus is a source of nosocomial infections and one of the significant concerns in patients with indwelling devices. Lysostaphin is a bacterially produced endopeptidase with a unique activity on S. aureus. Plasma, the fourth state of the material, consists of charged ions, free electrons, and activated neutral species. Biomedical applications of cold plasma are rapi...

Abstract Probiotic products require high number of viable and active microorganisms during storage. In this work, the survival human vaginal Lactobacillus gasseri CRL1320 rhamnosus CRL1332 after nanofiber-immobilization by electrospinning with polyvinyl-alcohol, storage was evaluated. The optimization bacterial immobilization conditions using bioprotectors (skim milk-lactose glycerol) oxygen-ex...

This special issue is dedicated to the study of microbial enzymes and their applications in various industries. The biocatalytic uses for enzymes have grown immensely in recent years since they are ecologically correct, have a high specificity, present chemo-regio-enantio selectivity, and have a wide diversity of reactions. Moreover, the conditions to obtain and optimize the production of enzym...

Glossary batch process A technique in which all nutrients for the microorganisms are added to the bioreactor only once and the products are separated in their entirety when the fermentation process is completed. bioreactor or fermenter The culture vessel or system used for growing microorganisms and producing microbial metabolic products such as lactic acid. continuous process A technique in wh...

Abstract Batik is made through a series of processes that requires large amount water. One these dying the fabric using chemical dyes. Many batik producers in Yogyakarta dispose wastewater straight into river or on ground. Since recognized as UNESCO’s Intangible Cultural Heritage Indonesia, industries have been grown rapidly. As result, became huge contributor to environmental pollution, especi...

BACKGROUND AND OBJECTIVES The attempts were made to describe the development of a whole cell immobilization of P. pastoris by entrapping the cells in polyacrylamide gel beads. The alcohol oxidase activity of the whole cell Pichia pastoris was evaluated in comparison with yeast biomass production. MATERIALS AND METHODS Methylotrophic yeast P. pastoris was obtained from Collection of Standard M...