| 학회 |
한국화학공학회 |
| 학술대회 |
2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터) |
| 권호 |
20권 1호, p.361 |
| 발표분야 |
생물화공 |
| 제목 |
Thermo-Chemical Extraction of Sugars from Chlorella pyrenoidosa |
| 초록 |
Microalgae have recently been considered as the most promising renewable feedstock for biorefineries. In this study, Chlorella pyrenoidosa was selected and utilized for microalgal biomass as feedstock of fermentable sugar production. For the sugar extraction from microalgae-based carbohydrates, thermo-chemical treatment was applied and the effective reagent was screened for the extraction. As a result, dilute sulfuric acid was significantly efficient among the three reagents (H2O, NaOH and H2SO4). Based on dilute sulfuric acid treatment, the optimal conditions for sugar extraction were investigated by statistical method. The three major factors (solid/liquid ratio, acid concentration and reaction time) were considered and optimized. The factors for optimal condition were as follows: reaction time 38.02 min, solid/liquid ratio 100 g/L and acid concentration 3%. The determination coefficients (R2) of the glucose and galactose were 0.8726 and 0.8675. The coefficients of variance were 28.37% and 24.33%, respectively. Finally, the sugars were recovered at a rate of about 90% from C. pyrenoidosa under the optimal conditions. |
| 저자 |
이자현1, 유하영1, Xiaoguang Yang1, 김동섭1, 박찬호1, 박철환2, 김승욱1
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| 소속 |
1고려대, 2광운대 |
| 키워드 |
microalgae; pretreatment; dilute acid; sugar
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| E-Mail |
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| 원문파일 |
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