Effect of corn quality on bioethanol production

Singh, Vijay

doi:10.1016/j.bcab.2012.06.001

Cited by 24 publications

(8 citation statements)

References 13 publications

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“…Ethanol production for corn coming in dry grind ethanol plants has been monitored in the past for more than 7 years (2003-2009) by a seed company (Elliott, 2010) and Singh, 2012). Ethanol yields were low during the first month, immediately after harvest; higher for next 6-7 months and decreased at year end.…”

Section: Temporal Trend Of Ethanol Concentrations From Dry Grind Processmentioning

confidence: 99%

“…The exact source of observed year round fluctuation in ethanol concentrations is not known. It was suggested by Singh (2012) that there might be intrinsic changes in the corn during storage responsible for this variation. The intrinsic changes could be the changes in amylose/amylopectin ratios, amounts of fermentable and resistant starch, digestibility of starch and protein matrix, protein solubility, etc., which are not revealed by composition analysis.…”

Section: Effect Of Storage Time and Enzyme Treatments On Ethanol Concmentioning

confidence: 99%

“…Dry grind ethanol yields depend on the incoming grain quality (Singh, 2012). Ethanol plants encounter seasonal variations in corn quality affecting ethanol yields and DDGS.…”

Section: Introductionmentioning

confidence: 99%

“…Ethanol plants encounter seasonal variations in corn quality affecting ethanol yields and DDGS. The observed variability is attributable to three main factors: genetics, growing environment and postharvest practices (Singh, 2012). Singh and Graeber, (2005) studied effects of hybrids and planting locations on ethanol production (with 25% solids content), and reported there was hybrid variability in corn affecting dry grind ethanol yields.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal variability in ethanol concentrations from a dry grind fermentation operation associated with incoming corn variability

Ramchandran

Johnston

Tumbleson

et al. 2015

Industrial Crops and Products

Self Cite

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Section: Temporal Trend Of Ethanol Concentrations From Dry Grind Processmentioning

confidence: 99%

Section: Effect Of Storage Time and Enzyme Treatments On Ethanol Concmentioning

confidence: 99%

“…Dry grind ethanol yields depend on the incoming grain quality (Singh, 2012). Ethanol plants encounter seasonal variations in corn quality affecting ethanol yields and DDGS.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal variability in ethanol concentrations from a dry grind fermentation operation associated with incoming corn variability

Ramchandran

Johnston

Tumbleson

et al. 2015

Industrial Crops and Products

Self Cite

View full text Add to dashboard Cite

“…In general, enhanced bioprocess operation and greater profitability are accomplished through increased feedstock quality [15], phenotype improvement of cell lines [16][17][18], and process systems engineering tools, such as techniques for monitoring, control, and optimization [19]. Despite the presence and application of the first two, the later is always present to some extent.…”

Section: Introductionmentioning

confidence: 99%

On-line identification of fermentation processes for ethanol production

Câmara

Soares

Feital

et al. 2017

Bioprocess Biosyst Eng

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A strategy for monitoring fermentation processes, specifically, simultaneous saccharification and fermentation (SSF) of corn mash, was developed. The strategy covered the development and use of first principles, semimechanistic and unstructured process model based on major kinetic phenomena, along with mass and energy balances. The model was then used as a reference model within an identification procedure capable of running on-line. The on-line identification procedure consists on updating the reference model through the estimation of corrective parameters for certain reaction rates using the most recent process measurements. The strategy makes use of standard laboratory measurements for sugars quantification and in situ temperature and liquid level data. The model, along with the on-line identification procedure, has been tested against real industrial data and have been able to accurately predict the main variables of operational interest, i.e., state variables and its dynamics, and key process indicators. The results demonstrate that the strategy is capable of monitoring, in real time, this complex industrial biomass fermentation. This new tool provides a great support for decision-making and opens a new range of opportunities for industrial optimization.

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Changes in Corn Protein Content During Storage and Their Relationship with Dry Grind Ethanol Production

Ramchandran

Hojilla-Evangelista

Moose

et al. 2018

J Americ Oil Chem Soc

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Changes in corn grain during storage can cause variations in dry grind ethanol yields. The first objective of this study was to determine the effects of postharvest storage on dry grind ethanol concentrations. Ethanol concentrations for corn stored under ambient and refrigerated conditions were measured every 4 weeks for 1 year. Ethanol concentrations had a decreasing trend for corn stored from 0 to 16 weeks and an increasing trend from week 16 to 24. These trends were similar for corn stored at refrigerated and ambient conditions. The effects of postharvest storage on soluble protein content and their relationship with ethanol concentration were also evaluated. Stored corn was sampled at weeks 0, 8, 16, 24, and 40. Soluble proteins were extracted using a sequential extraction procedure and expressed with respect to the total crude protein of corn, and the total values were not affected by storage temperature (ranging from −7 to 23 C). During 8 to 40 week storage at ambient and refrigerated temperature, the albumin content of corn decreased by 43.6% and 48.5% while the prolamin content increased by 37.9% and 43.0%, respectively. Ethanol yield at 72 hours of fermentation had no correlation with soluble protein content; however, ethanol yield at 24 hours correlated negatively with glutelin (r = −0.76) and positively with prolamin (r = +0.74) contents.Keywords Ethanol Á Dry grind process Á Corn Á Corn protein Á Soluble protein Á Storage J Am Oil Chem Soc (2018) 95: 923-932. J Am Oil Chem Soc (2018) 95: 923-932 924 J Am Oil Chem Soc J Am Oil Chem Soc (2018) 95: 923-932

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Effect of corn quality on bioethanol production

Cited by 24 publications

References 13 publications

Seasonal variability in ethanol concentrations from a dry grind fermentation operation associated with incoming corn variability

Seasonal variability in ethanol concentrations from a dry grind fermentation operation associated with incoming corn variability

On-line identification of fermentation processes for ethanol production

Changes in Corn Protein Content During Storage and Their Relationship with Dry Grind Ethanol Production

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