Distribution of invasive alien plants on the islands of the Korean Peninsula based on flora data

Kim, Hyun-Hee; Mizuno, Kazuharu; Kim, Da-Bin; Lee, Ho-Sang; Kong, Woo-Seok

doi:10.11626/kjeb.2020.38.3.392

Cited by 4 publications

(1 citation statement)

References 23 publications

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“…The cell growth of the control and experimental group was similar, indicating that fermentation inhibitory compounds were negligibly produced during NaOH pretreatment. Kim et al reported that the invasive plants, including S. angulatus, Ambrosia artemisiifolia and Eupatorium rugosum, have allelochemicals to survive in the ecosystem [47]. The allelochemicals such as flavonoids, terpenoids and organic acid have antibacterial activity [48][49][50][51].…”

Section: Bioethanol Production and Process Evalutaionmentioning

confidence: 99%

Improved Glucose Recovery from Sicyos angulatus by NaOH Pretreatment and Application to Bioethanol Production

Lee

Jang

et al. 2021

Processes

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As greenhouse gases and environmental pollution become serious, the demand for alternative energy such as bioethanol has rapidly increased, and a large supply of biomass is required for bioenergy production. Lignocellulosic biomass is the most abundant on the planet and a large part of it, the second-generation biomass, has the advantage of not being a food resource. In this study, Sicyos angulatus, known as an invasive plant (harmful) species, was used as a raw material for bioethanol production. In order to improve enzymatic hydrolysis, S. angulatus was pretreated with different NaOH concentration at 121 °C for 10 min. The optimal NaOH concentration for the pretreatment was determined to be 2% (w/w), and the glucan content (GC) and enzymatic digestibility (ED) were 46.7% and 55.3%, respectively. Through NaOH pretreatment, the GC and ED of S. angulatus were improved by 2.4-fold and 2.5-fold, respectively, compared to the control (untreated S. angulatus). The hydrolysates from S. angulatus were applied to a medium for bioethanol fermentation of Saccharomyces cerevisiae K35. Finally, the maximum ethanol production was found to be 41.3 g based on 1000 g S. angulatus, which was 2.4-fold improved than the control group.

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