Sustainable production of bioethanol using lipid-extracted biomass from Scenedesmus dimorphus

Chng, Lee Muei; Chan, Derek Juinn Chieh; Lee, Keat Teong

doi:10.1016/j.jclepro.2016.02.016

Cited by 66 publications

(9 citation statements)

References 25 publications

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“…Currently, efforts have been directed towards the application of other feedstock such as algae as substrates for bioethanol production . Biofuel production from algae is a novel concept that has implications for ecological protection.…”

Section: Introductionmentioning

confidence: 99%

“…5,6 Currently, efforts have been directed towards the application of other feedstock such as algae as substrates for bioethanol production. [7][8][9] Biofuel production from algae is a novel concept that has implications for ecological protection. Algae are capable of using large amounts of carbon dioxide, resulting in the production of biomass.…”

Section: Introductionmentioning

confidence: 99%

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Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Shokrkar

Ebrahimi

2018

Biofuels Bioprod Bioref

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This study aimed to evaluate the synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates for bioethanol production. The effect of β‐glucosidase on the hydrolysis of algal cellulose, and the comparison between the effect of the addition of α‐amylase and amyloglucosidase separately or together on the hydrolysis of algal starch, have not been described previously. Results showed that β‐glucosidases promoted the enzymatic hydrolysis of algal cellulose as a result of the increase in the glucose production rate and the decrease in the inhibition by cellobiose. It was also beneficial to carry out the hydrolysis of algal starch using the mixture of α‐amylase and amyloglucosidase. The results obtained revealed that, in enzymatic hydrolysis experiments, simultaneous treatment with Celluclast 1.5 L, β‐glucosidase, α‐amylase, and amyloglucosidase was a promising strategy to reduce the hydrolysis time required to achieve a higher yield of glucose. Subsequently, fermentation of enzymatic hydrolysates of microalgae using Saccharomyces cerevisiae showed a yield of 0.126 g ethanol / g dried algae. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Shokrkar

Ebrahimi

2018

Biofuels Bioprod Bioref

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“…KR-1 obtained after lipid extraction was used for saccharification and bioethanol production in the study of Lee et al The carbohydrate was saccharified using simple enzymatic and chemical methods and 0.4 g ethanol/g fermentable sugar and 0.16 g ethanol/g residual biomass were produced . In a similar study, the researchers produced bioethanol using lipid-extracted biomass from Scenedesmus dimorphus and maximum bioethanol yield of 0.26 g bioethanol/g lipid-extracted biomass was obtained (Chng et al, 2016). Another strategy is dilute acidic hydrolysis, 1% sulfuric acid was found to be very effective in saccharifying Chlorella vulgaris FSP-E biomass using Zymomonas mobilis for fermentation (Ho et al, 2013a).…”

Section: Disruption Of Microalgae Cellsmentioning

confidence: 94%

Experimental investigations on bioethanol production from halophilic microalgal biomass

Karatay

Erdoğan

Dönmez

et al. 2016

Ecological Engineering

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“…The optimal conditions were glycerol concentration of 16 g/L, initial pH 6.8, and light intensity of 48 μmol photon/m 2 s, yielding 11.65 ± 0.65 mL/L hydrogen along with lipid content > 40% in the microalgal biomass [ 146 ] 6 Scenedesmus dimorphus Combination of separate hydrolysis and fermentation and simultaneous saccharification and fermentation found most effective. Lipid-extracted biomass yielded 0.26 g bioethanol/g lipid-extracted biomass at pH 5, temperature of 34 °C, and microalgae biomass loading at 18 g/L [ 147 ] 7 Dunaliella sp. Microalgae used as a feedstock for bioethanol production.…”

Section: Products From Algal Biorefinerymentioning

confidence: 99%

Recent developments in synthetic biology and metabolic engineering in microalgae towards biofuel production

Jagadevan

Banerjee

et al. 2018

Biotechnol Biofuels

206

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In the wake of the uprising global energy crisis, microalgae have emerged as an alternate feedstock for biofuel production. In addition, microalgae bear immense potential as bio-cell factories in terms of producing key chemicals, recombinant proteins, enzymes, lipid, hydrogen and alcohol. Abstraction of such high-value products (algal biorefinery approach) facilitates to make microalgae-based renewable energy an economically viable option. Synthetic biology is an emerging field that harmoniously blends science and engineering to help design and construct novel biological systems, with an aim to achieve rationally formulated objectives. However, resources and tools used for such nuclear manipulation, construction of synthetic gene network and genome-scale reconstruction of microalgae are limited. Herein, we present recent developments in the upcoming field of microalgae employed as a model system for synthetic biology applications and highlight the importance of genome-scale reconstruction models and kinetic models, to maximize the metabolic output by understanding the intricacies of algal growth. This review also examines the role played by microalgae as biorefineries, microalgal culture conditions and various operating parameters that need to be optimized to yield biofuel that can be economically competitive with fossil fuels.

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Sustainable production of bioethanol using lipid-extracted biomass from Scenedesmus dimorphus

Cited by 66 publications

References 25 publications

Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Synergism of cellulases and amylolytic enzymes in the hydrolysis of microalgal carbohydrates

Experimental investigations on bioethanol production from halophilic microalgal biomass

Recent developments in synthetic biology and metabolic engineering in microalgae towards biofuel production

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