Comparative analysis of fresh and dry free-floating aquatic plant Pistia stratiotes via chemical pretreatment for second-generation (2G) bioethanol production. (June 2021)

• Record Type: Journal Article
• Authors: Whangchai, Kanda; Inta, Wiwansa; Unpaprom, Yuwalee; Bhuyar, Prakash; Adoonsook, Dome; Ramaraj, Rameshprabu
• Is Part Of: Bioresource technology reports. Volume 14(2021)
• Publication Date: 2021-06
• Subjects: Pistia stratiotes -- Yeast -- Total sugar -- Reducing sugar -- Bioethanol; Biomass energy -- Periodicals; Biotransformation (Metabolism) -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Waste products as fuel -- Periodicals; Waste products as fuel; Organic wastes; Factory and trade waste; Biotransformation (Metabolism); Biomass energy; Agricultural wastes; Periodicals; Electronic journals; 662.88
• DOI: 10.1016/j.biteb.2021.100651
• Languages: English
• ISSNs: 2589-014X

Abstract

Abstract: In the effort to manage global warming and fossil carbon emissions, many countries are suggesting brand-new policies to make their energy matrix much more renewable. The boost share of bioethanol as a transportation fuel becomes a short-term option since its production technology is fully grown and combined with gasoline. The 2nd generation ethanol still has involvement on the planet biofuels circumstance. In this study, water lettuce ( Pistia stratiotes ) fresh and dry biomass applied with alkalis (NaOH) and acid (H2 SO4 ) were combined to pretreat the abundant free-floating aquatic plant water lettuce biomass. Naturally, the water lettuce accumulates food in the form of starch, suitable for bioethanol production. The results showed that the highest total sugar (11.350 ± 0.09%), reducing sugar (4.773 ± 0.15%), and ethanol (15. 385 g/L) were obtained after pretreatment of dried water lettuce with cellulase. Consequently, water lettuce was high feasible for sustainable bioethanol production. Graphical abstract: Unlabelled Image Highlights: Water lettuce can grow in freshwater conditions. Water lettuce is a sole substrate that can be used in bioethanol production. Pretreatment methods increase in the content of reducing sugars. Fresh water, water lettuce efficiently produces the bioethanol.