Improving sugar extraction from brewers’ spent grain using sequential deproteinization and acid-catalyzed steam explosion in a biorefinery context

Pérez, Lilia Carolina Rojas; Narváez-Rincón, Paulo César; Ballesteros, Ignacio

doi:10.1016/j.biombioe.2022.106389

Cited by 14 publications

(7 citation statements)

References 38 publications

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“…Calculation of cellulose and hemicellulose content: 1,3 Cellulose ð%Þ ¼ glucoseg Â 0:9 autohydrolysed residueg Â 100%…”

Section: Chemical Composition Analysismentioning

confidence: 99%

“…2 Autohydrolysis is an eco-friendly and economical biorefining method because it requires no chemical inputs other than water and heat. 3 Water is used as the only reagent to depolymerize the cell wall matrix, including carbohydrates, lignin, and the linkages between them, to overcome the recalcitrance of lignocellulose, through which platform compounds and directly usable compounds are formed. 4,5 This is the way forward for green biorefining of lignocellulose biomass.…”

Section: Introductionmentioning

confidence: 99%

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Effect and control of energy input on tissue and cell dissociation and chemical depolymerization in pure subcritical water autohydrolysis of naked oat stem

et al. 2023

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“…Calculation of cellulose and hemicellulose content: 1,3 Cellulose ð%Þ ¼ glucoseg Â 0:9 autohydrolysed residueg Â 100%…”

Section: Chemical Composition Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect and control of energy input on tissue and cell dissociation and chemical depolymerization in pure subcritical water autohydrolysis of naked oat stem

et al. 2023

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“…The principle of SE is that biomass undergoes high-pressure steam and then instantaneously depressurizes, opening the biomass structure and releasing small molecular substances [ 17 ]. Studies have shown that SE has a high extraction yield in the extraction of bioactive components, such as phenols [ 18 ], flavonoids [ 19 ] and monosaccharides [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Extraction of Pectin from Passion Fruit Peel: Composition, Structural Characterization and Emulsion Stability

Liang

Yang

Zheng

et al. 2022

Foods

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Extraction methods directly affect pectin extraction yield and physicochemical and structural characteristics. The effects of acid extraction (AE), ultrasonic-assisted acid extraction (UA), steam explosion pretreatment combined with acid extraction (SEA) and ultrasonic-assisted SEA (USEA) on the yield, structure, and properties of passion fruit pectin were studied. The pectin yield of UA was 6.5%, equivalent to that of AE at 60 min (5.3%), but the emulsion stability of UA pectin was poor. The pectin obtained by USEA improved emulsion stability. Compared with UA, it had higher protein content (0.62%), rhamnogalacturonan I (18.44%) and lower molecular weight (0.72 × 105 Da). In addition, SEA and USEA had high pectin extraction yields (9.9% and 10.7%) and the pectin obtained from them had lower degrees of esterification (59.3% and 68.5%), but poor thermal stability. The results showed that ultrasonic-assisted steam explosion pretreatment combined with acid extraction is a high-efficiency and high-yield method. This method obtains pectin with good emulsifying stability from passion fruit peel.

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“…Brewers’ spent grain (BSG) is a by-product of the industrial brewing process mostly used in animal feed. The insoluble fraction of barley grains separated before the wort fermentation process represents approximately 85% of the total by-products of the brewing process [ 5 ]. In 2017, European beer production was approximately 39.7 billion liters, with BSG accounting for 20 kg every 100 L of beer [ 6 ], whilst, in 2019, a total amount of 1.91 billion hectoliters of beer were produced worldwide [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Cereal Waste Valorization through Conventional and Current Extraction Techniques—An Up-to-Date Overview

Fărcaș

Socaci

Nemeş

et al. 2022

Foods

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Nowadays, in the European Union more than 100 million tons of food are wasted, meanwhile, millions of people are starving. Food waste represents a serious and ever-growing issue which has gained researchers’ attention due to its economic, environmental, social, and ethical implications. The Sustainable Development Goal has as its main objective the reduction of food waste through several approaches such as the re-use of agro-industrial by-products and their exploitation through complete valorization of their bioactive compounds. The extraction of the bioactive compounds through conventional methods has been used for a long time, whilst the increasing demand and evolution for using more sustainable extraction techniques has led to the development of new, ecologically friendly, and high-efficiency technologies. Enzymatic and ultrasound-assisted extractions, microwave-assisted extraction, membrane fractionation, and pressure-based extraction techniques (supercritical fluid extraction, subcritical water extraction, and steam explosion) are the main debated green technologies in the present paper. This review aims to provide a critical and comprehensive overview of the well-known conventional extraction methods and the advanced novel treatments and extraction techniques applied to release the bioactive compounds from cereal waste and by-products.

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Improving sugar extraction from brewers’ spent grain using sequential deproteinization and acid-catalyzed steam explosion in a biorefinery context

Cited by 14 publications

References 38 publications

Effect and control of energy input on tissue and cell dissociation and chemical depolymerization in pure subcritical water autohydrolysis of naked oat stem

Effect and control of energy input on tissue and cell dissociation and chemical depolymerization in pure subcritical water autohydrolysis of naked oat stem

Extraction of Pectin from Passion Fruit Peel: Composition, Structural Characterization and Emulsion Stability

Cereal Waste Valorization through Conventional and Current Extraction Techniques—An Up-to-Date Overview

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