This study presents bioconversion of water hyacinth (Eichhornia crassipes) to bioethanol using two-sequential steps of acid hydrolysis (10% sulfuric acid) and yeast (Candida intermedia) fermentation. Maximum ethanol yield co-efficient was comparable to those obtained through enzymatic saccharification and fermentation of acid hydrolysate using fully equipped fermentor. A maximum ethanol yield (...

Flow cytometry was used to evaluate the effect of initial ethanol concentrations on cyanobacterial strains of Synechocystis PCC 6803 [wild-type (WT), and ethanol producing recombinants (UL 004 and UL 030)] in batch cultures. Ethanol recombinants, containing one or two metabolically engineered cassettes, were designed towards the development of an economically competitive process for the direct ...

Indonesia is a country that has the most energy sources in Southeast of Asia and fifth Asia-Pacific subsequent to China, India, Japan South Korea. Energy usage 2016 was still dominated by 47% fuel oil. If increases continuously, sustenance resilience will be plagued. Therefore, there necessary utilize alternative would earth-friendly as well New Renewable (EBT) like bioethanol. Bioethanol can p...

Abstract: This study aims to produce bioethanol from cassava and determine the yield of fermentation, a crop distillation, analysis amount paid per kilogram cassava. The research method used is descriptive quantitative. results showed that distillation process was carried out three times, average taken as sample 0.59 liters. In conclusion, based on obtained fermentation 66.34%, 2.78%, cassava, ...

This article reports the deliverables of experimental study on production a completely renewable biofuel from Manilkara zapota fruit and seed oil. It was attempted to synthesis ethyl ester oil using bioethanol synthesized decayed fruit. Bioethanol produced through fermentation fruit, waste skin, pulp with Saccharomyces cerevisiae then distilled at 72°C. The yield noted as 10.45% (v/w). 95.09% p...

Bioethanol has a greater promise for environmental safety and energy security than fossil fuels. The alternate source required to meet the fuel's requirements can be provided by bioethanol. Untapped sugar-rich sources, like cellulose-rich household wastes, industrial agricultural all used make bioethanol at minimal cost. study's objective was determine whether saccharomyces cerevisiae cells fro...

Vetiver grass (Chrysopogon zizanioides) is well-known for its contaminant phytoextraction potential and capacity to reduce soil erosion, owing massive, dense root system. However, the shoots are not major contributors either of these processes, utilized at all or they become part waste stream. It well-recognized that lignocellulosic biomass can serve as a source raw material produce second-gene...

<p><em>Bioethanol is an alternative energy that starting to be needed, along with the depletion of petroleum reserves. Bioethanol can obtained from various wastes, including palm oil trunk waste which contains 86.03% cellulose. The purpose this study was determine production bioethanol by treatment crude enzymes Trichoderma reesei and Aspergillus niger. This research experimental us...

Bioethanol is an alternative fuel to replace fossil fuels that are renewable and more environmentally friendly. One way produce bioethanol through microbial fermentation of starch-containing materials. Jackfruit straw waste contains high levels carbohydrates sugar be used as raw material for making bioethanol. This research aims optimize production from jackfruit (Artocarpus heterophyllus) base...