Effect of ultrasonic pretreatment on chain elongation of saccharified residue from food waste by anaerobic fermentation

Ma, Haile; Lin, Yujia; Jin, Yong Su; Gao, Ming; Li, Hongai; Wang, Qunhui; Ge, Shengbo; Cai, Liping; Huang, Zhenhua; Le, Quyet Van; Xia, Changlei

doi:10.1016/j.envpol.2020.115936

Cited by 56 publications

(11 citation statements)

References 51 publications

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“…Merdibacter was demonstrated to be a beneficial bacterium for gut health in laying hens [ 58 ]. The Caproiciproducens mainly degraded the proteins and carbohydrates from food residues to produce caproic acids through a chain elongation procedure [ 59 ]. The increase of Gordonibacter in gut microbiota of mice may reduce intestinal permeability and inflammatory cytokine levels, maintaining a healthy intestinal microenvironment [ 60 ].…”

Section: Discussionmentioning

confidence: 99%

Bio-Fermented Malic Acid Facilitates the Production of High-Quality Chicken via Enhancing Muscle Antioxidant Capacity of Broilers

Qiu

Zhang

et al. 2022

Antioxidants

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Malic acid, an intermediate of the tricarboxylic acid (TCA) cycle, is a promising acidifier with strong antioxidant capacity. This study aimed to evaluate the effects of bio-fermented malic acid (BFMA) on promoting the body health, performance and meat quality of broilers. A total of 288 one-day-old Arbor Acres male broiler chicks were randomly divided into four treatments with six replicates in each. Every replicate had 12 chicks. Four experimental diets contained 0, 4, 8, and 12 g/kg BFMA, respectively. During the 42-day trial, mortality was recorded daily, feed intake and body weight of each replicate being recorded every week. Blood samples were collected on days 21 and 42 for chemical analysis. After slaughter at the age of 42 days, the carcass traits and meat quality of the broilers were measured, breast muscle samples were collected for the determination of antioxidant capacity, and cecal digesta were pretreated for microbiota analysis. Dietary BFMA significantly increased feed intake and daily gain, and decreased feed conversion ratio and death and culling ratio of the broilers at the earlier stage. The water-holding capacity of breast muscle indicated by the indexes of dripping loss and cooking loss was significantly increased by BFMA, especially at the addition level of 8 g/kg. Dietary BFMA significantly decreased the activity of superoxide dismutase and contents of immunoglobulin A and glutathione, and increased contents of immunoglobulin G and M in serum of the broilers. The contents of glutathione, inosinic acid, and total antioxidant capacity and the activities of glutathione-Px and superoxide dismutase were significantly increased by dietary BFMA, with the level of 8 g/kg best. The diversity of cecal microbiota of broilers was obviously altered by BFMA. In conclusion, as one of several acidifiers, addition of BFMA in diets could improve the performance and body health of broilers, probably by reinforcing immunity and perfecting cecal microbiota structure. As one of the intermediates of the TCA cycle, BFMA increases the water-holding capacity of breast muscle of broilers, probably through reducing lactate accumulates and enhancing antioxidant capacity.

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Section: Discussionmentioning

confidence: 99%

Bio-Fermented Malic Acid Facilitates the Production of High-Quality Chicken via Enhancing Muscle Antioxidant Capacity of Broilers

Qiu

Zhang

et al. 2022

Antioxidants

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“…Obtained data clearly indicate that pretreatment enhanced the TS and VS removal and also enhanced the crossponding biogas/biomethane yield in comparison of untreated FFVW. It is well known fact that the extent of TS and VS removal give the crossponding biogas/biomethane yield as well as energy recovery (Voelklein et al 2017;Ma et al 2021). These results also reveal that solubilisation of complex nutrient and the extent of the TS and VS removal has the equivalent extent of the biodegradability (Xiang et al 2016).…”

Section: Ts and Vs Removalmentioning

confidence: 60%

“…FFVW substrate was sonicated in a beaker continuously stirred with magnetic stirrer, operating at 80 µm amplitude and 24 kHz for 15 minutes in hot water bath (35±2 0 C temperature). The ultrasound probe (disruptor) was immersed into the FFVW at a depth of 3.5 cm (Ma et al 2021). After that FFVW sample was left to cooled down until the room temperature then sample was applied for mesophilic AD process.…”

Section: Methodsmentioning

confidence: 99%

“…This indicates the digester has pH close to optimum range of pH for methanogenesis and it can also conclude that all the digester has almost stable AD operation for the enhanced biogas/biomethane yield. At some point of co-digestion, the pH of digester in case of R4 (except R3) digester was below the optimum pH due to the accumulation of undissociated VFAs, carbohydrates, proteins, and fats by hydrolysing microorganisms (Ma et al 2021;Wang et al 2021). For the stable AD operation pH was controlled by adding NaHCO 3 and NaOH in the digester.…”

Section: Smentioning

confidence: 99%

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Effectiveness of the pretreatment methods on mesophilic anaerobic co-digestion of fruit, food and vegetable waste

Chaurasia

Siwach

Mondal

2021

Preprint

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Pretreatment of the fruit, food and vegetable waste materials could enhance the biogas generation in a shorter time along with waste reduction. The aim of the present work was to assess the effectiveness of alkaline, hydrothermal, thermal and ultrasonication pretreatment of fruit, food, and vegetable waste with cow dung for the mesophilic anaerobic co-digestion. The mesophilic anaerobic co-digestion of fruit food and vegetable waste as single substrate with cow dung were performed in a laboratory scale 1L batch digester for 30 days at 40 ± 2 oC temperature. Obtained result show that pretreatment process has enhanced the biogas and biomethane production by 35 % and 44.4 % with 19.89 % TS and 17.30 % VS removal in case of ultrasonication pretreatment (100.45 ml biogas/gVS and 27.92 ml CH4/gVS,), while slight increase is found with thermal and hydrothermal pretreatment as compared to untreated FFVW. The biogas production is enhanced by 35%, 20.4%, 5%, 6% and biomethane production are enhanced by 44.4%, 22%, 11%, 9.8% in the case of ultrasonication, alkaline, thermal and hydrothermal pretreatment process, respectively. The stable mesophilic anaerobic co-digestion operation was achieved and impacts of the different pretreatment methods on the biogas yield and net energy recovery along with viability of anaerobic co-digestion have been explored.

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“…Carboxylic acid yield of 0.62 mg/mg COD A was achieved from glycerol rich food waste [92]. Production of caproic acid was enhanced by ultrasonic pretreatment (207.8 mg COD/g VS) and hydrothermal pretreatments (210.1 mg COD/g VS) of food waste compared with alkali thermal pretreatments during acidogenic fermentation by Caproiciproducens [93]. Besides VFAs and carboxylic acids, a range of chemicals are simultaneously recovered from food waste biorefinery.…”

Section: Platform Chemicalsmentioning

confidence: 99%

Food Waste Biorefinery: Pathway towards Circular Bioeconomy

Tsegaye

Jaiswal

2021

Foods

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Food waste biorefineries for the production of biofuels, platform chemicals and other bio-based materials can significantly reduce a huge environmental burden and provide sustainable resources for the production of chemicals and materials. This will significantly contribute to the transition of the linear based economy to a more circular economy. A variety of chemicals, biofuels and materials can be produced from food waste by the integrated biorefinery approach. This enhances the bioeconomy and helps toward the design of more green, ecofriendly, and sustainable methods of material productions that contribute to sustainable development goals. The waste biorefinery is a tool to achieve a value-added product that can provide a better utilization of materials and resources while minimizing and/or eliminating environmental impacts. Recently, food waste biorefineries have gained momentum for the production of biofuels, chemicals, and bio-based materials due to the shifting of regulations and policies towards sustainable development. This review attempts to explore the state of the art of food waste biorefinery and the products associated with it.

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Effect of ultrasonic pretreatment on chain elongation of saccharified residue from food waste by anaerobic fermentation

Cited by 56 publications

References 51 publications

Bio-Fermented Malic Acid Facilitates the Production of High-Quality Chicken via Enhancing Muscle Antioxidant Capacity of Broilers

Bio-Fermented Malic Acid Facilitates the Production of High-Quality Chicken via Enhancing Muscle Antioxidant Capacity of Broilers

Effectiveness of the pretreatment methods on mesophilic anaerobic co-digestion of fruit, food and vegetable waste

Food Waste Biorefinery: Pathway towards Circular Bioeconomy

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