Abstract Used cooking oil has the potential to be used as raw material for biodiesel. However, high Free Fatty Acid (FFA) content in can interfere with transesterification process. This issue will affect quality of biodiesel yields. Therefore, FFA must reduced through a pre-treatment process by adding activated carbon adsorbent from charcoal. In this study, adsorption was carried out mixing and...

This study systematically established the most effective refining process for Moringa oleifera (MO) kernel oil. Acid degumming (20.33 ± 1.37 ppm) removed significantly greater phosphorus than water (31.18 0.90 ppm). Neutralization was more deodorization in decreasing acid (0.06 mg KOH/g) and p-Anisidine (p-AV, 0.36 0.03) values of Besides improving its color properties, acid-activated bleaching...

Abstract This research focuses on the development of utilizing Grade-C kenaf fibers (poor quality) produced from plantations in Pesanggarahan village, Lamongan regency, Indonesia, to produce alternative textile materials for craft and products. High-quality have been utilized automotive, pulp paper, geotextile industries, while low-quality are considered less potential only used as gunny sacks....

Electrowriting (EW) successfully combines the principles of two widely studied biofabrication techniques; 3D printing and electrospinning, is capable producing complex architectures, with submicron resolutions. However, EW process so far limited mainly to thermoplastic polymers synthetic origin such as poly ε-caprolactone. Herein we demonstrate silk fibroin (SF) on an in-house build setup ident...

Biodiesel has an important role in the world of transportation and its existence is taken into account. So availability biodiesel fuel future will be difficult to eliminate must continue fulfilled. Therefore, it necessary innovate increase fuel. can made from biological materials includes renewable energy as a substitute for diesel oil. The production this study jatropha waste cooking oil raw m...

Various process parameters for the production of polygalacturonase by Streptomyces lydicus under solid-state fermentation were optimized. The optimum particle size of wheat bran for polygalacturonase production was in the range of 500-1000 μm. Initial moisture content of 70% was found to be the optimum for enzyme production. The most suitable inoculum size was 1.25 × 10(5) CFU/mL and the optimu...

Phospholipase A1 (PLA1) immobilized in calcium alginate can effectively overcome the mass transfer resistance at the lipid-water interface making more room for the enzyme to separate itself from the products of reaction and to bind with the next available molecule at the interface. The reaction of an immobilized PLA1 hydrolase from Thermomyces lanuginosus was comparatively faster than of its fr...