Abstract
In this study, three indigenous microalgae strains (Scenedesmus subspicatus GY-16, Chlorella vulgaris FSP-E, and Anistrodesmus gracilis GY-09) were evaluated for their performance on producing carbohydrates, which serve as feedstock for bioH2 production. The results show that C. vulgaris FSP-E displayed the highest growth rate (825.6 mg/L/d) and carbohydrate productivity (365.8 mg/L/d). Different sodium acetate concentrations were supplemented into the growth medium to investigate the effect of organic carbon source on biomass and carbohydrate productivity. The results show that using 2000 mg/l sodium acetate to grow C. vulgaris FSP-E resulted in the highest biomass and carbohydrate productivity of 1022.3 mg/l/d and 498.5 mg/l/d, respectively. Meanwhile, to assess the practical applicability of the proposed microalgae-based carbohydrates production system, the photobioreactor was further operated on semi-batch mode for a prolonged incubation time under the optimal conditions. The results show that the biomass and carbohydrate productivity of C. vulgaris FSP-E was stably maintained at 1173.6 and 371.4 mg/L/d, respectively. Due to the high carbohydrate content, C. vulgaris FSP-E is considered an excellent feedstock for biohydrogen fermentation. Using the acidic hydrolysate of C. vulgaris FSP-E as feedstock, the separate hydrolysis and fermentation (SHF) process could achieve high-yield hydrogen production with a maximum hydrogen yield of 2.67 g hydrogen/g microalgae biomass, which is higher than most reported values. These results indicate that using carbohydrate-rich microalgae as feedstock to produce biohydrogen is indeed feasible for practical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 870-873 |
| Number of pages | 4 |
| Journal | Energy Procedia |
| Volume | 61 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
| Event | 6th International Conference on Applied Energy, ICAE 2014 - Taipei, Taiwan Duration: 2014 May 30 → 2014 Jun 2 |
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All Science Journal Classification (ASJC) codes
- Energy(all)
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Enhanching biohydrogen production from Chlorella vulgaris FSP-E under mixotrophic cultivation conditions. / Chen, Chun Yen; Chang, Ching Yu; Lo, Yung Chung; Ho, Shih Hsin; Chang, Jo Shu.
In: Energy Procedia, Vol. 61, 01.01.2014, p. 870-873.Research output: Contribution to journal › Conference article
TY - JOUR
T1 - Enhanching biohydrogen production from Chlorella vulgaris FSP-E under mixotrophic cultivation conditions
AU - Chen, Chun Yen
AU - Chang, Ching Yu
AU - Lo, Yung Chung
AU - Ho, Shih Hsin
AU - Chang, Jo Shu
PY - 2014/1/1
Y1 - 2014/1/1
N2 - In this study, three indigenous microalgae strains (Scenedesmus subspicatus GY-16, Chlorella vulgaris FSP-E, and Anistrodesmus gracilis GY-09) were evaluated for their performance on producing carbohydrates, which serve as feedstock for bioH2 production. The results show that C. vulgaris FSP-E displayed the highest growth rate (825.6 mg/L/d) and carbohydrate productivity (365.8 mg/L/d). Different sodium acetate concentrations were supplemented into the growth medium to investigate the effect of organic carbon source on biomass and carbohydrate productivity. The results show that using 2000 mg/l sodium acetate to grow C. vulgaris FSP-E resulted in the highest biomass and carbohydrate productivity of 1022.3 mg/l/d and 498.5 mg/l/d, respectively. Meanwhile, to assess the practical applicability of the proposed microalgae-based carbohydrates production system, the photobioreactor was further operated on semi-batch mode for a prolonged incubation time under the optimal conditions. The results show that the biomass and carbohydrate productivity of C. vulgaris FSP-E was stably maintained at 1173.6 and 371.4 mg/L/d, respectively. Due to the high carbohydrate content, C. vulgaris FSP-E is considered an excellent feedstock for biohydrogen fermentation. Using the acidic hydrolysate of C. vulgaris FSP-E as feedstock, the separate hydrolysis and fermentation (SHF) process could achieve high-yield hydrogen production with a maximum hydrogen yield of 2.67 g hydrogen/g microalgae biomass, which is higher than most reported values. These results indicate that using carbohydrate-rich microalgae as feedstock to produce biohydrogen is indeed feasible for practical applications.
AB - In this study, three indigenous microalgae strains (Scenedesmus subspicatus GY-16, Chlorella vulgaris FSP-E, and Anistrodesmus gracilis GY-09) were evaluated for their performance on producing carbohydrates, which serve as feedstock for bioH2 production. The results show that C. vulgaris FSP-E displayed the highest growth rate (825.6 mg/L/d) and carbohydrate productivity (365.8 mg/L/d). Different sodium acetate concentrations were supplemented into the growth medium to investigate the effect of organic carbon source on biomass and carbohydrate productivity. The results show that using 2000 mg/l sodium acetate to grow C. vulgaris FSP-E resulted in the highest biomass and carbohydrate productivity of 1022.3 mg/l/d and 498.5 mg/l/d, respectively. Meanwhile, to assess the practical applicability of the proposed microalgae-based carbohydrates production system, the photobioreactor was further operated on semi-batch mode for a prolonged incubation time under the optimal conditions. The results show that the biomass and carbohydrate productivity of C. vulgaris FSP-E was stably maintained at 1173.6 and 371.4 mg/L/d, respectively. Due to the high carbohydrate content, C. vulgaris FSP-E is considered an excellent feedstock for biohydrogen fermentation. Using the acidic hydrolysate of C. vulgaris FSP-E as feedstock, the separate hydrolysis and fermentation (SHF) process could achieve high-yield hydrogen production with a maximum hydrogen yield of 2.67 g hydrogen/g microalgae biomass, which is higher than most reported values. These results indicate that using carbohydrate-rich microalgae as feedstock to produce biohydrogen is indeed feasible for practical applications.
UR - http://www.scopus.com/inward/record.url?scp=84922378303&partnerID=8YFLogxK
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U2 - 10.1016/j.egypro.2014.11.984
DO - 10.1016/j.egypro.2014.11.984
M3 - Conference article
AN - SCOPUS:84922378303
VL - 61
SP - 870
EP - 873
JO - Energy Procedia
JF - Energy Procedia
SN - 1876-6102
ER -