Aug 2026· Nova Biotechnologica et Chimica· 0 citations
Abstract
Alkali pretreatment of oil palm empty fruit bunch (OPEFB) using sodium hydroxide (NaOH) was optimized by varying substrate concentration, alkali loading, temperature, and time. A Central Composite Design (CCD) based on the Box–Wilson factorial design was applied to determine conditions that maximized cellulose and hemicellulose and minimized lignin to enhance ethanol production. Under optimized conditions, cellulose reached 65.2%, while lignin and hemicellulose were reduced to 9.4% and 11.8%, respectively. Pretreated OPEFB released high amounts of fermentable sugars, with glucose, xylose and arabinose yields of 43.4 ± 0.2, 28.1 ± 0.1 and 10.2 ± 0.3 mg/g, respectively, representing a clear increase compared with low-alkali conditions. Fermentation of the optimized biomass produced a maximum ethanol concentration of 60.8 g/L.
Nitrocellulose (NC) is a strategic energetic material commonly produced from cotton linters or wood pulp, resources that are increasingly constrained and largely imported in Indonesia. This study investigated oil palm empty fruit bunches (OPEFB), an abundant lignocellulosic residue from the palm oil industry, as an alt...
Rizki Fitria Darmayanti, Athirah Farahdibah, Alexander Refael et al.· International Journal of Bio...· 0 citations
This research examines the synthesis of nitrocellulose (NC) utilizing oil palm empty fruit bunches (EFB) as a sustainable alternative for green propellant applications. Ramie was used as a comparative benchmark to assess nitration efficiency and performance. The cellulose was extracted via a two‐step process involv...
Denny Lesmana, Y. Mardiyati, Muhammad Hisyam Ramadhan et al.· Macromolecular Symposia· 0 citations
Palm oil fronds are a plantation waste with potential as ruminant feed, but their high lignocellulose content limits widespread use. This study aimed to improve the nutritional quality of palm oil fronds through pretreatment and fermentation, including their amino acid and fatty acid profiles. Three pretreatment method...
Ratu Safitri, R. Kusmiati, Yolani Syaputri et al.· Mesopotamia Journal of Agric...· 0 citations
This study investigates the potential for producing fermentable sugars from
Prosopis juliflora
stem biomass using an unique approach using microwave-assisted KOH pretreatment. Various operating parameters in the microwave-assisted KOH pretreatment involves KOH conc (1, 2% and 3%), biomass loading (1, 3 and 5 g), mi...
Vijayasri Mohandoss, Prem Kumar Muthhurasu, A. Senthil Kumar et al.· Frontiers in Fuels· 0 citations
Oil palm empty fruit bunches serve as a sustainable silica source to address solid waste challenges. This study evaluated five parameters for silica extraction including calcination temperature between 500 and 700 °C, calcination time from 90 to 150 minutes, fiber size of 1 cm versus 0.25 mm, and alkali type using NaOH...
Akida Mulyaningtyas, Andi Suhendi, Tri Widodo Besar Riyadi et al.· Journal of King Saud Univers...· 0 citations
In the current study, various Aspergillus and Trichoderma strains were explored to produce cellulase using a variety of agricultural wastes as cheaper substrates. Among the tested strains, Trichoderma harzianum exhibited the highest enzyme activity (84.0 FPU/mL) when grown on alkali-pretreated sugarcane bagasse after p...
Hifza Rahat, Ieshmal M. Hashmi, Sarwat Ismail et al.· Biotechnology and applied bi...· 0 citations
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