Corn stover is an agricultural waste that amounts to 144 million metric tonnes per year worldwide. Corn stovers consist of 21.71% cellulose, 38.78% hemicellulose, and 9.4% lignin. This study was conducted to determine the effect of hydrothermal pretreatment and fermentation duration using Trichoderma sp. The most significant decrease in lignocellulosic content was achieved after a 35-day fermentation procedure using Trichoderma viride with a hydrothermal pretreatment of 60 minutes. This resulted in a reduction of cellulose by 45.16%, hemicellulose by 37.63%, and lignin by 40.67%. In addition, the fermentation process using Trichoderma harzianum and a hydrothermal pretreatment for 60 minutes produced the most humic acid after 35 days, with a yield of 9%. Through a statistical analysis and correlation, it can be identified that the duration of hydrothermal pretreatment and the fermentation period have a positive impact on the breakdown of lignocellulosic content and the synthesis of humic acid.Agricultural and plantation industries generate a lot of biomass wastes, that may introduce environmental burden. These biomass waste has the potential to be utilized following the concept of biorefinery. The oil palm empty fruit bunches (OPEFB) are one of the biomass-wastes from the palm oil industry that are available in abundance. Explorations and studies on the utilization of OPEFB have been conducted, however mostly focussed on a single consituents of the OPEFB that may limit the economic feasibility and technology commercialization. This research evaluated several pretreatment configurations that were organosolv, steam explosion, and combination of organosolv-steam explosion followed by enzymatic hydrolysis, in order to optimize the recovery of all OPEFB consituents such that least OPEFB materials are wasted. Organosolv removed more lignin from the biomass compared to steam explosion, combination of organosolv and steam explosion remove lignin completely. The latter pretreatment method followed by enzymatic hydrolysis also gave the highest glucose yield, 0.151 g-glucose/g-OPEFB. However, no xylose can be recovered in that configuration. The research aims to support government programs in preventing the transmission of Dengue disease. This study will integrate climate predictions, such as humidity, rainfall, and temperature. A mathematical model will be developed, from which a computational procedure will be derived, leading to the creation of software. This software will analyze and predict the occurrence of Dengue cases on a weekly or monthly basis using climate data predictions. Key to the prediction of Dengue cases is estimating the best possible forecast based on climate data.The integrated model software will use historical Dengue case data and climate predictions to provide the best predictions. Additionally, this research is expected to enhance understanding of Dengue transmission both temporally and spatially. The temporal model will use negative binomial regression to predict cases over time, 115Muhammad Yusuf ABUDH116Made Tri Ari Penia KRESNOWATI117Nuning NURAINISynthesis of organic acid from corn stover using catalytic pyrolysis coupled with submerged fermentation(Project 2023)Quantitative Assement of Integrated Biorefinery of Oil Palm Empty Fruit Bunches for The Realization of Circular Economy(Project 2023)Modeling Climate Impact on Dengue Map Early Warning(Project 2023)81
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