A Potentially Study of Duckweed Lemna minor L. Biomass in Biofuel Production

DOI: 10.14416/j.ind.tech.2020.12.002


  • Pradinunt Eiamsa-ard Department of Environmental Science, Faculty of Science and Technology, Phranakorn Si Ayutthaya Rajabhat University


Duckweed; Lemna minor L.; Lignocellulosic Composition; Biomass Pretreatment; Reducing Sugar


Duckweed, Lemna minor L. is categorized as rapid growth aquatic plant with the ability to accumulate high proportion of starch content and significantly low lignin ratio. It could be, therefore, promising as a biomass feedstock for biofuel production. In this research, the lignocellulosic composition coupled with the reducing sugar concentration either in fresh or dried duckweed Lemna minor L. biomass was investigated. The results established the highest proportion of cellulose and hemi-cellulose composition was exclusively observed within dried duckweed biomass at 29.18 and 64.83% (w/w), respectively, meanwhile, the lowest level of lignin content at 5.75% (w/w). The chemical pretreatment of duckweed biomass was evaluated through 0.05, 0.1 and 0.2 N of H2SO4 and NaOH at 80ºC. Within these experiments, the level of sugar concentration derived from dried duckweed biomass was higher compared to the fresh biomass. Especially, the highest reducing sugar at 796.21 ± 0.91 mg/l was released according to the treatment of dried duckweed biomass with 0.05 N H2SO4, whereas the lowest reducing sugar content was 200.04 ± 1.51 mg/l has been achieved after the treatment of fresh biomass with 0.2 N NaOH. However, the consecutively chemical composition analysis of duckweed Lemna minor L. biomass could be contributed to a substrate for biofuel energy production through the further appropriated variable technologies.


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บทความวิจัย (Research article)