A general kinetic model for the hydrothermal liquefaction of microalgae

Valdez, Peter; Tocco, Vincent J.; Savage, Phillip E.

doi:10.1016/j.biortech.2014.04.013

Cited by 182 publications

(130 citation statements)

References 16 publications

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“…Valdez et al [38] for HTL and Gong et al [17] for pyrolysis experiments showed that the main compounds in bio-oils were derived from lipids and proteins.…”

Section: Bio-oil Analysismentioning

confidence: 98%

Comparison of pyrolysis and hydrothermal liquefaction of Chlamydomonas reinhardtii. Growth studies on the recovered hydrothermal aqueous phase

Hognon

Delrue

Texier

et al. 2015

Biomass and Bioenergy

111

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“…Valdez et al [38] for HTL and Gong et al [17] for pyrolysis experiments showed that the main compounds in bio-oils were derived from lipids and proteins.…”

Section: Bio-oil Analysismentioning

confidence: 98%

Comparison of pyrolysis and hydrothermal liquefaction of Chlamydomonas reinhardtii. Growth studies on the recovered hydrothermal aqueous phase

Hognon

Delrue

Texier

et al. 2015

Biomass and Bioenergy

111

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“…A free fatty acid is released in each reaction step on hydrolysis of water molecule with one ester bond. Valdez et al [68] conducted a useful kinetic modeling, including the biochemical content of the microalgae for SWE. In the model, the decomposition of algal biomacromolecules such as proteins, carbohydrates and lipids were described by six rate constants.…”

Section: Modeling and Lca Analysismentioning

confidence: 99%

Process application of Subcritical Water Extraction (SWE) for algal bio-products and biofuels production

et al. 2015

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“…The rest of biomass which comprises predominantly of carbohydrates and small amounts of other cellular components may simply be considered as the carbohydrate fraction for convenience. Thus, the carbohydrate content was determined by the difference (Valdez et al, 2014).…”

Section: Total Solids and Non-protein Components Analysismentioning

confidence: 99%

Optimization of Protein Extraction from Spirulina platensis to Generate a Potential Co-Product and a Biofuel Feedstock with Reduced Nitrogen Content

et al. 2015

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The current work reports protein extraction from Spirulina platensis cyanobacterial biomass in order to simultaneously generate a potential co-product and a biofuel feedstock with reduced nitrogen content. S. platensis cells were subjected to cell disruption by high-pressure homogenization and subsequent protein isolation by solubilization at alkaline pH followed by precipitation at acidic pH. Response surface methodology was used to optimize the process parameters -pH, extraction (solubilization/precipitation) time and biomass concentration for obtaining maximum protein yield. The optimized process conditions were found to be pH 11.38, solubilization time of 35 min and biomass concentration of 3.6% (w/w) solids for the solubilization step, and pH 4.01 and precipitation time of 60 min for the precipitation step. At the optimized conditions, a high protein yield of 60.7% (w/w) was obtained. The protein isolate (co-product) had a higher protein content [80.6% (w/w)], lower ash [1.9% (w/w)] and mineral content and was enriched in essential amino acids, the nutritious γ-linolenic acid and other high-value unsaturated fatty acids compared to the original biomass. The residual biomass obtained after protein extraction had lower nitrogen content and higher total non-protein content than the original biomass. The loss of about 50% of the total lipids from this fraction did not impact its composition significantly owing to the low lipid content of S. platensis (8.03%).

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A general kinetic model for the hydrothermal liquefaction of microalgae

Cited by 182 publications

References 16 publications

Comparison of pyrolysis and hydrothermal liquefaction of Chlamydomonas reinhardtii. Growth studies on the recovered hydrothermal aqueous phase

Comparison of pyrolysis and hydrothermal liquefaction of Chlamydomonas reinhardtii. Growth studies on the recovered hydrothermal aqueous phase

Process application of Subcritical Water Extraction (SWE) for algal bio-products and biofuels production

Optimization of Protein Extraction from Spirulina platensis to Generate a Potential Co-Product and a Biofuel Feedstock with Reduced Nitrogen Content

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