The Role of Emergent Processing Technologies in Beer Production

Carvalho, Gonçalo; Leite, Ana Catarina; Leal, Rita; Pereira, Ricardo N.

doi:10.3390/beverages9010007

Cited by 7 publications

(7 citation statements)

References 128 publications

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“…In order to mimic brewing process [25,26], achieve biochemical stabilization, sterilise agricultural residues and eliminate bacteria grain processing residues and wheat bran were boiled for 10 min at 100°C [27,28]. Dry brewing yeasts (Saccharomyces cerevisiae) were cultivated in highly diluted pulp, sterilized agricultural residues and dry sugar suspension at 23°C for 14 hours.…”

Section: Pulp Agricultural Residues Pre-treatment and Yeast Cultivationmentioning

confidence: 99%

Grain and beer production by-products (wheat bran, grain production residues and Saccharomyces cerevisiae) application in compostable packaging material. The impact on physical-mechanical and barrier properties

Markeviciute,

Lyytikäinen,

Leminen

et al. 2023

Preprint

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Renewable materials and material circularity are the key priorities of coming decades. Paper is the most used material in the packaging sector, however its applications in the food packaging are limited because of the low barrier properties. When coated with petrol-based polymer barrier coatings it becomes unrecyclable neither mechanically, neither biologically. Bio-coated and made from / with agricultural waste or by-products compostable paper packaging is environmentally favourable solutions that can benefit the biological cycle of the circular economy. The main objective of this study is to review the applicability of grain and beer production by-products application in compostable food packaging materials. The effect of different grain by-products (industrial wheat grain processing residues and wheat bran) particles and concentrations (15wt% and 40wt%) as well as the effect of brewer’s yeast (saccharomyces cerevisiae) of 10wt% concentration on the physical-mechanical and barrier properties on Northern bleached softwood kraft (NBSK) and chemithermomechanical (CTMP) pulps. The material composites were fabricated using standard sheet forming method. The physical-mechanical properties were analyzed through tensile strength, strain at break, tear resistance and bending stiffness tests. The barrier related properties were analyzed through roughness, air permeance and water contact angle tests. The result reveal that the vast majority physical-mechanical properties decreased with the increase of both type of grain production fillers. Industrial wheat grain processing residues resulted lower impact on physical-mechanical properties than wheat bran filler. Higher percentage properties decrease was absorbed in NBSK pulp than in CTMP. Roughness of CTMP can be improved by adding both – industrial wheat grain processing residues and wheat bran. Wheat bran particles can increase hydrophobicity. CTMP pulp strength properties can be increased with addition of yeast, however yeast additive effect on air permeance demonstrated resulted negative impact. In case of NBSK pulp which has higher primary strength properties, addition of yeast does not make any significant changes. The conducted experiments demonstrated that grain production by-products decreases physical-mechanical properties, but can be applicable and benefit compostable food packaging material production by saving raw materials. The pulp type and filler ratio in must be evaluated on an individual case. Beer production by-product saccharomyces cerevisiae does not make significant difference on material physical-mechanical properties – the yeast-containing samples are generally less mechanically robust but can exhibit flexibility. The effect on barrier properties varies – air permeability of these samples is generally higher however yeast has a positive impact on surface hydrophobicity – paper surface becomes more hydrophobic or less receptive to wetting by liquids.

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Section: Pulp Agricultural Residues Pre-treatment and Yeast Cultivationmentioning

confidence: 99%

Grain and beer production by-products (wheat bran, grain production residues and Saccharomyces cerevisiae) application in compostable packaging material. The impact on physical-mechanical and barrier properties

Markeviciute,

Lyytikäinen,

Leminen

et al. 2023

Preprint

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“…The objectives for both procedures are to separate the wort from the husks, seedlings and other insoluble materials and to increase sugar extraction. The aim of this process is to obtain a clear liquid with high content of raw material extract [4,6]. The wort is taken to a boiling vessel, to separate it from the by-product known as brewers' spent grain (BSG).…”

Section: Introductionmentioning

confidence: 99%

“…The wort is boiled for a certain amount of time, at which point hops and ning substances are added (in small and craft breweries). This process occurs to inactivate enzymes, sterilize the wort, precipitate the proteins and polyphenols that form the turbidity, provide bitterness (isomerization of hop α-acids) and extract aromatic compounds from the hops [4,8]. At the end of this stage, the coagulated proteins (or trub) and the suspended hop particles (brewer's spent hops) must be extracted from the wort, using a "whirlpool tank" or "settling tank".…”

Section: Introductionmentioning

confidence: 99%

“…Beer styles are many and very different and they can be obtained by the different uses of their traditional components such as water, malted cereals, yeasts and hops and the "art" of combining different proportions of them and elaboration techniques [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…The brewing process consists of nine steps, which are: milling, mashing, wort ltration, wort boiling, wort treatment, fermentation, maturation, ltration and pasteurization [4].…”

Section: Introductionmentioning

confidence: 99%

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Reutilization of brewer's spent grain as spent mushroom substrate for the generation of biogas in a semi-continuous digester

Ganuza,

Mejia,

Albertó

2023

Preprint

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In this work we explore the use of brewers' spent grain (BSG) to produce biogas after it was used to produce the edible mushroom Pleurotus pulmonarius within the concept of circular economy. We compare the production of biomethane obtained using: i) spent mushroom substrate (SMS) and ii) BSG to feed the digester. We produced the mushroom using a mixture of sawdust and BSG and the resulting SMS was used to feed the digester. The mono-digestion of both substrates was carried out in 19l semi-continuos biodigesters (SB), in mesophilic conditions (35°C), constant stirring of 200 rpm and a hydraulic retention time of 30 days. The start-up of SB was carried out in stages. PH, volume and biogas composition were recorded daily. Accumulated biogas volumes of 59.971 l and 465.73 l were obtained for the SMS and BSG respectively. The average methane composition was 42% for SMS and 55% for BSG. The methane yield obtained was 35.95 and 265.495 l CH4/KgVS for SMS and BSG, respectively. The use of BSG, first as substrate for mushroom production, and then, using SMS to produce biogas would not be a recommended practice if the main objective were the production of biogas. Since it is much more efficient to produce biomethane when BSG is used directly. The results obtained from the use of BSG show that this substrate improves the yield of mushroom production and can be used for the production of biogas in SB with a high performance.

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Reutilization of Brewer’s Spent Grain as Spent Mushroom Substrate for the Generation of Biogas in a Semi-Continuous Digester

Ganuza,

Jaramillo Mejia,

Albertó

2023

Waste Biomass Valor

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The Role of Emergent Processing Technologies in Beer Production

Cited by 7 publications

References 128 publications

Grain and beer production by-products (wheat bran, grain production residues and Saccharomyces cerevisiae) application in compostable packaging material. The impact on physical-mechanical and barrier properties

Grain and beer production by-products (wheat bran, grain production residues and Saccharomyces cerevisiae) application in compostable packaging material. The impact on physical-mechanical and barrier properties

Reutilization of brewer's spent grain as spent mushroom substrate for the generation of biogas in a semi-continuous digester

Reutilization of Brewer’s Spent Grain as Spent Mushroom Substrate for the Generation of Biogas in a Semi-Continuous Digester

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