2015
DOI: 10.4025/actascitechnol.v37i4.28133
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<b>Citric waste saccharification under different chemical treatments

Abstract: ABSTRACT. Second generation ethanol from lignocellulose materials has been used in applications for food processing wastes. Since Brazil has a leading position in orange juice exports, the influence of acid and alkali pretreatments on liquor saccharification, solubilization of solid fraction and mass yield was evaluated. Time and C acid or C alkaline at different concentrations of solids (low to moderate, 1 to 9%) and high catalyst concentrations were analyzed. A hydrothermal pretreatment was conducted under t… Show more

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Cited by 18 publications
(11 citation statements)
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“…Pretreatment of biomass for conversion to 2G ethanol (second generation ethanol) has shown to be challenging because it must eliminate lignin, reduce crystallinity of cellulose, and dissolve hemicellulose, turning the biomass into a feedstock more susceptible to biological and chemical hydrolysis (SARKAR et al, 2012). Thus, in order to be considered effective, pretreatment methods have to yield large amounts of fermentable sugars, avoiding waste of biomass, degradation of carbohydrates, and formation of inhibitors of hydrolysis and fermentation, being economically viable (SILVA et al, 2015). Currently, pretreatment methods of biomass are classified into biological, physical, chemical or physicochemical methods.…”
Section: Introductionmentioning
confidence: 99%
“…Pretreatment of biomass for conversion to 2G ethanol (second generation ethanol) has shown to be challenging because it must eliminate lignin, reduce crystallinity of cellulose, and dissolve hemicellulose, turning the biomass into a feedstock more susceptible to biological and chemical hydrolysis (SARKAR et al, 2012). Thus, in order to be considered effective, pretreatment methods have to yield large amounts of fermentable sugars, avoiding waste of biomass, degradation of carbohydrates, and formation of inhibitors of hydrolysis and fermentation, being economically viable (SILVA et al, 2015). Currently, pretreatment methods of biomass are classified into biological, physical, chemical or physicochemical methods.…”
Section: Introductionmentioning
confidence: 99%
“…Saccharification of OPEFB was performed in 1 mL reaction mixtures containing 25 mM pH 5 sodium acetate buffer and 1% (w/v) pre-treated OPEFB at 50 °C with shaking at 1,000 rpm for 5 h (Thermomixer Comfort, Eppendorf AG, Hamburg, Germany). Production of reducing sugars were measured using the DNS reagent (Miller, 1959) and total reducing sugars (TRS) calculated using the following equation (Farias Silva et al, 2015):…”
Section: Enzymatic Hydrolysis Of Opefb Using Cellic ® Ctec2 Supplemenmentioning
confidence: 99%
“…The potential use of these materials is based on their large availability and low cost [3,6]. The biomass productions costs in Brazil are considered the lowest in the world, with great possibilities of promising results [7]. Orange is vastly consumed all around the world, for its flavor as well as its medicinal and nutritional properties.…”
Section: Introductionmentioning
confidence: 99%