An economic evaluation of the fermentative production of lactic acid from wheat flour

Åkerberg, Christina; Zacchi, Guido

doi:10.1016/s0960-8524(00)00057-2

Cited by 145 publications

(79 citation statements)

References 14 publications

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“…They used cumulative probability curves to compare potential processes and focused on their overlaps and MESP with 50% probability. Akerberg and Zacchi show a probability curve of the production cost of lactic acid from starch 81 to emphasize that a single production cost is insufficient.…”

Section: ---------------------mentioning

confidence: 99%

Lignocellulosic Biomass to Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid Prehydrolysis and Enzymatic Hydrolysis for Corn Stover

Aden¹,

Ruth²,

Ibsen³

et al. 2002

763

1,037

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The U.S. Department of Energy (DOE) is promoting the development of ethanol from lignocellulosic feedstocks as an alternative to conventional petroleum-based transportation fuels. DOE funds both fundamental and applied research in this area and needs a method for predicting cost benefits of many research proposals. To that end, the National Renewable Energy Laboratory (NREL) has modeled many potential process designs and estimated the economics of each process during the last 20 years.This report is an update of the ongoing process design and economic analyses at NREL. We envision updating this process design report at regular intervals; the purpose being to ensure that the process design incorporates all new data from NREL research, DOE funded research and other sources, and that the equipment costs are reasonable and consistent with good engineering practice for plants of this type. For the non-research areas this means using equipment and process approaches as they are currently used in industrial applications.For the last report 1 , published in 1999, NREL performed a complete review and update of the process design and economic model for the biomass-to-ethanol process utilizing co-current dilute acid prehydrolysis with simultaneous saccharification (enzymatic) and co-fermentation. The process design included the core technologies being researched by the DOE: prehydrolysis, simultaneous saccharification and co-fermentation, and cellulase enzyme production. In addition, all ancillary areas-feed handling, product recovery and purification, wastewater treatment (WWT), lignin combustor and boiler-turbogenerator, and utilities-were included. NREL engaged Delta-T Corporation (Delta-T) to assist in the process design evaluation, the process equipment costing, and overall plant integration. The process design and costing for the lignin combustor and boiler turbogenerator was reviewed by Reaction Engineering Inc. (REI) and Merrick & Company reviewed the wastewater treatment.Since then, NREL has engaged Harris Group (Harris) to perform vendor testing, process design, and costing of critical equipment identified during earlier work. This included solid/liquid separation and pretreatment reactor design and costing. Corn stover handling was also investigated to support DOE's decision to focus on corn stover as a feedstock for lignocellulosic ethanol. Working with Harris, process design and costing for these areas were improved through vendor designs, costing, and vendor testing in some cases. In addition to this work, enzyme costs were adjusted to reflect collaborative work between NREL and enzyme manufacturers (Genencor International and Novozymes Biotech) to provide a delivered enzyme for lignocellulosic feedstocks. This report is the culmination of our work and represents an updated process design and cost basis for the process using a corn stover feedstock.The process design and economic model are useful for predicting the cost benefits of proposed research. Proposed research results can be translated into mo...

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Section: ---------------------mentioning

confidence: 99%

Lignocellulosic Biomass to Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid Prehydrolysis and Enzymatic Hydrolysis for Corn Stover

Aden¹,

Ruth²,

Ibsen³

et al. 2002

763

1,037

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“…Since biodegradable plastics come more and more to the forefront of the manufacturer industries, the need for lactic acid is increasing. As a kind of biodegradable polymer, PLA has become a potential environmentally friendly substitute of nonbiobased plastics derived from petrochemicals [6,7].…”

Section: Introductionmentioning

confidence: 99%

Lactic Acid Production by Lactobacillus paracasei 168 in Discontinuous Fermentation Using Lucerne Green Juice as Nutrient Substitute

et al. 2010

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“…It could become a commodity chemical for the production of lactate esters, propylene glycol, propylene oxide, acrylic acid, 2,3-pentanedione, propanoic acidacetaldehyde, and dilactide (3,15). It has also been increasing in importance as a feedstock for manufacture of polylactic acid (PLA), which could be a good substitute for synthetic plastic derived from petroleum feedstock.…”

mentioning

confidence: 99%

Utilization of Molasses Sugar for Lactic Acid Production by Lactobacillus delbrueckii subsp. delbrueckii Mutant Uc-3 in Batch Fermentation

Dumbrepatil

Adsul

Chaudhari

et al. 2008

Appl Environ Microbiol

151

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Efficient lactic acid production from cane sugar molasses by Lactobacillus delbrueckii mutant Uc-3 in batch fermentation process is demonstrated. Lactic acid fermentation using molasses was not significantly affected by yeast extract concentrations. The final lactic acid concentration increased with increases of molasses sugar concentrations up to 190 g/liter. The maximum lactic acid concentration of 166 g/liter was obtained at a molasses sugar concentration of 190 g/liter with a productivity of 4.15 g/liter/h. Such a high concentration of lactic acid with high productivity from molasses has not been reported previously, and hence mutant Uc-3 could be a potential candidate for economical production of lactic acid from molasses at a commercial scale.

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An economic evaluation of the fermentative production of lactic acid from wheat flour

Cited by 145 publications

References 14 publications

Lignocellulosic Biomass to Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid Prehydrolysis and Enzymatic Hydrolysis for Corn Stover

Lignocellulosic Biomass to Ethanol Process Design and Economics Utilizing Co-Current Dilute Acid Prehydrolysis and Enzymatic Hydrolysis for Corn Stover

Lactic Acid Production by Lactobacillus paracasei 168 in Discontinuous Fermentation Using Lucerne Green Juice as Nutrient Substitute

Utilization of Molasses Sugar for Lactic Acid Production by Lactobacillus delbrueckii subsp. delbrueckii Mutant Uc-3 in Batch Fermentation

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