Production of alcohol by simultaneous saccharification and fermentation of low-grade wheat flour

Neves, Marcos A.; Kojima, Toshinori; Shimizu, Naoto; Shiiba, Kiwamu

doi:10.1590/s1516-89132006000400017

Cited by 55 publications

(32 citation statements)

References 21 publications

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“…It accounts for about 25% of the original grain weight (Neves et al, 2006). If all the available wheat around the world were milled to be consumed as food, the wheat bran as a by-product would account for approximately 15 million tons per year (Prückler et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of homogenization and ultrasonication on the physical properties of insoluble wheat bran fibres

Hu¹,

Zhang²,

Adhikari³

et al. 2015

International Agrophysics

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A b s t r a c t. Wheat bran is rich in dietary fibre and its annual output is abundant, but underutilized. Insoluble dietary fibre often influences food quality negatively; therefore, how to improve the physical and chemical properties of insoluble dietary fibre of wheat bran for post processing is a challenge. Insoluble dietary fibre was obtained from wheat bran and micronized using high-pressure homogenization, high-intensity sonication, and a combination of these two methods. The high-pressure homogenization and high-pressure homogenization+high-intensity sonication treatments significantly (p<0.05) improved the solubility, swelling, water-holding, oil-holding, and cation exchange capacities. The improvement of the above properties by highintensity sonication alone was marginal. In most cases, the highpressure homogenization process was as good as the high-pressure homogenization+high-intensity sonication process in improving the above-mentioned properties; hence, the contribution of highintensity sonication in the high-pressure homogenization+high-intensity sonication process was minimal. The best results show that the minimum particle size of wheat bran can reach 9 μm, and the solubility, swelling, water-holding, oil-holding, cation exchange capacities change significantly.

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Section: Introductionmentioning

confidence: 99%

Effect of homogenization and ultrasonication on the physical properties of insoluble wheat bran fibres

Hu¹,

Zhang²,

Adhikari³

et al. 2015

International Agrophysics

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show abstract

“…The production of industrial and fuel ethanol commonly involves three steps: 1) liquefaction of starch by α-amylase, 2) enzymatic sachharification of liquefied product to produce glucose, and 3) fermentation of glucose to ethanol (Sree et al 2004). Commercial glucoamylase is used for the saccharification and represents a significant expense in the production process (Neves et al 2006). Traditionally, the yeast, Saccharomyces cerevisiae has been used all over the world as the major ethanol producing microorganism (Lin and Shuzo 2006).…”

Section: Introductionmentioning

confidence: 99%

Bioethanol production from sweet potato (Ipomoea batatas L.) flour using co-culture of Trichoderma sp. and Saccharomyces cerevisiae in solid-state fermentation

Swain

Mishra

Thatoi

2013

Braz. arch. biol. technol.

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“…The suspensions may contain 10%-17% dry matter (w/w) at lab scale [122,123] and around 25% in practice [124]. The combined effects of Cd and Cu concentrations reaching 3.13 and 12.3 mg·kg −1 ·DW, respectively, in several soil A-grown wheat cvs.…”

Section: Applicability Of the Herbage From The Metalliferous Soil Amentioning

confidence: 99%

Gradual Accumulation of Heavy Metals in an Industrial Wheat Crop from Uranium Mine Soil and the Potential Use of the Herbage

Gramss

Voigt

2016

Agriculture

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Abstract:Testing the quality of heavy-metal (HM) excluder plants from non-remediable metalliferous soils could help to meet the growing demands for food, forage, and industrial crops. Field cultures of the winter wheat cv. JB Asano were therefore established on re-cultivated uranium mine soil (A) and the adjacent non-contaminated soil (C). Twenty elements were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) from soils and plant sections of post-winter seedlings, anthesis-state, and mature plants to record within-plant levels of essential and toxic minerals during ripening and to estimate the (re)use of the soil-A herbage in husbandry and in HM-sensitive fermentations. Non-permissible HM loads (mg·kg −1 ·DW) of soil A in Cd, Cu, and Zn of 40.4, 261, and 2890, respectively, initiated the corresponding phytotoxic concentrations in roots and of Zn in shoots from the seedling state to maturity as well as of Cd in the foliage of seedlings. At anthesis, shoot concentrations in Ca, Cd, Fe, Mg, Mn, and Zn and in As, Cr, Pb, and U had fallen to a mean of 20% to increase to 46% during maturation. The respective shoot concentrations in C-grown plants diminished from anthesis (50%) to maturity (27%). They were drastically up/down-regulated at the rachis-grain interface to compose the genetically determined metallome of the grain during mineral relocations from adjacent sink tissues. Soil A caused yield losses of straw and grain down to 47.7% and 39.5%, respectively. Nevertheless, pronounced HM excluder properties made Cd concentrations of 1.6-3.08 in straw and 1.2 in grains the only factors that violated hygiene guidelines of forage (1). It is estimated that grains and the less-contaminated green herbage from soil A may serve as forage supplement. Applying soil A grains up to 3 and 12 in Cd and Cu, respectively, and the mature straw as bioenergy feedstock could impair the efficacy of ethanol fermentation by Saccharomyces cerevisiae.

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Production of alcohol by simultaneous saccharification and fermentation of low-grade wheat flour

Abstract: LG1 (38.6 g/L), compared to LG2 (24.9 g/L). The maximum ATP production was observed early in the SSF process. LG1 revealed higher potential as substrate for ethanol production.

Cited by 55 publications

References 21 publications

Effect of homogenization and ultrasonication on the physical properties of insoluble wheat bran fibres

Effect of homogenization and ultrasonication on the physical properties of insoluble wheat bran fibres

Bioethanol production from sweet potato (Ipomoea batatas L.) flour using co-culture of Trichoderma sp. and Saccharomyces cerevisiae in solid-state fermentation

Gradual Accumulation of Heavy Metals in an Industrial Wheat Crop from Uranium Mine Soil and the Potential Use of the Herbage

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