Optimization and Evaluation of Sugars and Chemicals Production from Green Macro-algae <Emphasis Type="Italic">Enteromorpha intestinalis</Emphasis> |
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Authors: | Dong-Hyun Kim Sang-Bum Lee Sung-Koo Kim Don-Hee Park Gwi-Taek Jeong |
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Institution: | 1.Department of Biotechnology,Pukyong National University,Busan,Republic of Korea;2.Department of Biotechnology and Bioengineering,Chonnam National University,Gwangju,Republic of Korea;3.Interdisciplinary Program of Graduate School for Bioenergy and Biomaterials,Chonnam National University,Gwangju,Republic of Korea |
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Abstract: | This work investigated the optimization of sugar and chemical formation from marine macro-green-alga Enteromorpha intestinalis by hydrothermal reaction and a statistical methodology. By this approach, the highest sugar and chemical yields were predicted as follows: glucose 10.42 %, xylose-mannose-galactose (XMG) 18.08 %, total reducing sugar (TRS) 28.61 % (reaction temperature 156 °C, catalyst amount 1.3 %, reaction time 11.4 min), levulinic acid 4.00 % (175.0 °C, 3.7 %, 35 min), 5-hydroxymethylfurfural 1.71 % (186.0 °C, 1.1 %, 37.9 min), and furfural 2.03 % (183.1 °C, 2.2 %, 10.7 min). In terms of the combined severity factor (CSF), the glucose, XMG, and TRS production decreased linearly with increasing CSF and to a high correlation. This application of a marine green-alga shows a high potential for production of fermentable sugars and chemicals suitable for biorefinement processes. |
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