Effects of ensiling treatments on lactic acid production and supplementary methane formation of maize and amaranth – An advanced green biorefining approach

Haag, Nicola Leonard; Nägele, Hans‐Joachim; Fritz, Thomas; Oechsner, Hans

doi:10.1016/j.biortech.2014.08.048

Cited by 43 publications

(22 citation statements)

References 9 publications

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“…Only raw materials with glucose addition had a significant initial WSC content, between 35% and 53% (VS basis). These amounts were significantly higher than the ones found in the literature for feedstocks that were successfully acidified during ensiling [8,[18][19][20][21][22]. Concerning CM16%S condition, no WSC was observed in the initial sample, since starch is not a water-soluble molecule.…”

Section: Feedstock Characterisationmentioning

confidence: 54%

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Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion

Franco

Bayard

2018

Waste Biomass Valor

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The impacts of storage conditions, total solids content and silage additives were investigated at laboratory scale for cattle manure during up to 120 days. Wheat straw was used as co-substrate in the study of the effects of total solids content. Glucose and starch were used as model molecules of sugar-rich co-substrates. Single-handedly cattle manure lost 37% of its original methane potential after 120 days of anaerobic storage. This was essentially caused by the low total solids content and by the absence of water soluble carbohydrates in the feedstock. Wheat straw addition decreased moisture content and enabled cattle manure stabilization for a pH of 6.0. In contrast, extensive heterofermentative lactic acid bacteria fermentation occurred during co-ensiling with glucose and the pH quickly dropped to values below 4.0. Starch was used as substrate for fermentation but its hydrolysis limited bacterial activity and acidification. Finally, all the three co-substrates led to minimal methane potential losses after 120 days of storage. Coensiling will improve the energy efficiency of agricultural biogas plants that use stored cattle manure as feedstock.

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Section: Feedstock Characterisationmentioning

confidence: 54%

“…Therefore, nitrogen structure was identical for all conditions. Moreover, it is important to notice that ammonia nitrogen content was quite high in feedstocks (15)(16)(17)(18)(19)(20)(21)(22). This might cause substantial ammonia emissions if pH moves toward alkalinity during the storage period [3,12].…”

Section: Feedstock Characterisationmentioning

confidence: 99%

Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion

Franco

Bayard

2018

Waste Biomass Valor

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“…High concentrations of ethanol and butyric acid following clostridial and heterofermentative lactic acid bacterial fermentations were also accompanied by elevated specific CH 4 yield from grass [179]. The methane yield of maize silage treated with heterofermentative LAB was measured higher than from the corresponding solid residue, while the treatment of amaranth showed a significant decrease in methane yield from silage in contrast to solid residue [180]. Other studies showed that LAB failed to raise methane yield or had little effect [181][182][183].…”

Section: Food Additivesmentioning

confidence: 97%

Waste Degradation and Utilization by Lactic Acid Bacteria: Use of Lactic Acid Bacteria in Production of Food Additives, Bioenergy and Biogas

Новик¹,

Meerovskaya²,

Savich³

2017

Food Additives

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Lactic acid bacteria (LAB) are one of the most well-studied bacterial groups known from ancient times. These valuable microorganisms are used in numerous areas, especially food industry and medicine. LAB produce a wide range of compounds for food upgrading. Moreover, LAB can find special applications like generation of bioenergy not affecting the surrounding environment. The article considers physiological and biochemical processes determining valuable characteristics of the bacteria, potential applications of LAB and their products, especially in food industry and bioenergy sector, and discusses LAB potential contribution into solution of waste disposal problem.

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“…Green biorefineries convert herbaceous biomass into value-added products such as feed rich in proteins and energy, lactic acid to produce biopolymers, fiber, organic fertilizer and bioenergy [129,195,196]. In these biorefineries, the remaining solid fractions still offer substantial biogas potential [197], and the digestate can be treated further to produce nutrient-rich fertilizers and stable soil amendments [3,198]. Residues from industrial crop cultivation and processing can also be used as feedstocks for anaerobic digestion [199].…”

Section: Coupling Anaerobic Digestion With Other Production Systems Omentioning

confidence: 99%

The Future Agricultural Biogas Plant in Germany: A Vision

et al. 2019

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After nearly two decades of subsidized and energy crop-oriented development, agricultural biogas production in Germany is standing at a crossroads. Fundamental challenges need to be met. In this article we sketch a vision of a future agricultural biogas plant that is an integral part of the circular bioeconomy and works mainly on the base of residues. It is flexible with regard to feedstocks, digester operation, microbial communities and biogas output. It is modular in design and its operation is knowledge-based, information-driven and largely automated. It will be competitive with fossil energies and other renewable energies, profitable for farmers and plant operators and favorable for the national economy. In this paper we discuss the required contribution of research to achieve these aims.

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Effects of ensiling treatments on lactic acid production and supplementary methane formation of maize and amaranth – An advanced green biorefining approach

Cited by 43 publications

References 9 publications

Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion

Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion

Waste Degradation and Utilization by Lactic Acid Bacteria: Use of Lactic Acid Bacteria in Production of Food Additives, Bioenergy and Biogas

The Future Agricultural Biogas Plant in Germany: A Vision

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