Abstract Corn (Zea mays) is a commodity of food crops that are important after rice in Indonesia. plantation produces waste the form corncob. Corncob lignocellulosic biomass can converted to cellulose, even sugar or another chemical like ethanol. The first step for utilization corncob delignification. purpose this study was isolate and purify enzyme laccase from white rot fungus Cerrena sp.B.Md...

Corncob contains nutrients for the growth of mushrooms. Since wood, original substrate mushroom production, is becoming difficult to obtain these days, study aims evaluate effect using corncob as a Lentinula edodes (shiitake) cultivation, and provide an economic eco-friendly approach transform waste biomass into high quality edible Six formulas containing gradient proportions were assessed (100...

Malic acid is a dicarboxylic acid widely used in the food industry, and is also a potential C4 platform chemical. Corncob is a low-cost renewable feedstock from agricultural industry. However, side-reaction products (furfural, 5-hydroxymethylfurfural (HMF), formic acid, and acetic acid) that severely hinder fermentation are formed during corncob pretreatment. The process for producing malic aci...

BACKGROUND Fermentable sugars are important intermediates in the biological conversion of biomass. Hemicellulose and amorphous cellulose are easily hydrolyzed to fermentable sugars in dilute acid, whereas crystalline cellulose is more difficult to be hydrolyzed. Cellulose fast pyrolysis is an alternative method to liberate valuable fermentable sugars from biomass. The amount of levoglucosan gen...

This study aims to identify and analyze the band gap width of carbon phase produced from corncobs mixed with PEG-4000 see surface area corncob phase. First, characterization test was carried out using Scanning Electron Microscope Energy-Dispersive X-ray (SEM-EDX) spectroscopy determine morphology Ultraviolet–Visible (UV-Vis) carbon. Then, adding Polyethylene Glycol (PEG) 4000 at a specific conc...

BACKGROUND Pretreatment is currently the common approach for improving the efficiency of enzymatic hydrolysis on lignocellulose. However, the pretreatment process is expensive and will produce inhibitors such as furan derivatives and phenol derivatives. If the lignocellulosic biomass can efficiently be saccharified by enzymolysis without pretreatment, the bioconversion process would be simplifi...

Biochar has important biogeochemical functions in soil—first as a means to sequester carbon, and second soil conditioner potentially enhance quality fertility. Volatile matter (VM) content is property of biochar that describes its degree thermal alteration, which can have direct influence on carbon nitrogen dynamics soil. In this study, we characterized the VM biochars derived from two locally ...