Valorisation of food waste via fungal hydrolysis and lactic acid fermentation with Lactobacillus casei Shirota

Kwan, Tsz Him; Hu, Yunzi; Lin, Carol Sze Ki

doi:10.1016/j.biortech.2016.01.134

Cited by 114 publications

(60 citation statements)

References 30 publications

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“…Li et al [15] reported the production of 18.9 g/L succinic acid concentration with yield of 0.38 g/g and productivity of 0.25 g/L/h when a genetically engineered Yarrowia lipolytica strain was cultivated in mixed food waste hydrolysate. The hydrolysis of food waste or biowaste fractions has been mainly carried out using either enzyme consortia produced on-site (e.g., via solid state fungal fermentation) [17] or commercial enzyme mixtures [9,18]. The succinic acid production cost could be reduced further by combining the utilization of low-cost feedstock with continuous fermentations that leads to high productivities [19,20].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of organic fractions of municipal solid waste as renewable feedstock for succinic acid production

Stylianou

Pateraki

Ladakis

et al. 2020

Biotechnol Biofuels

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Background: Despite its high market potential, bio-based succinic acid production experienced recently a declining trend because the initial investments did not meet the expectations for rapid market growth. Thus, reducing the succinic acid production cost is imperative to ensure industrial implementation.Results: Succinic acid production has been evaluated using hydrolysates from the organic fraction of municipal solid waste (OFMSW) collected from MSW treatment plants. A tailor-made enzymatic cocktail was used for OFMSW hydrolysate production containing up to 107.3 g/L carbon sources and up to 638.7 mg/L free amino nitrogen. The bacterial strains Actinobacillus succinogenes and Basfia succiniciproducens were evaluated for succinic acid production with the latter strain being less efficient due to high lactic acid production. Batch A. succinogenes cultures supplemented with 5 g/L yeast extract and 5 g/L MgCO 3 reached 29.4 g/L succinic acid with productivity of 0.89 g/L/h and yield of 0.56 g/g. Continuous cultures at dilution rate of 0.06 h −1 reached 21.2 g/L succinic acid with yield of 0.47 g/g and productivity of 1.27 g/L/h. Downstream separation and purification of succinic acid was achieved by centrifugation, treatment with activated carbon, acidification with cation exchange resins, evaporation and drying, reaching more than 99% purity. Preliminary techno-economic evaluation has been employed to evaluate the profitability potential of bio-based succinic acid production. Conclusions:The use of OFMSW hydrolysate in continuous cultures could lead to a minimum selling price of 2.5 $/ kg at annual production capacity of 40,000 t succinic acid and OFMSW hydrolysate production cost of 25 $/t sugars.

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Section: Introductionmentioning

confidence: 99%

Evaluation of organic fractions of municipal solid waste as renewable feedstock for succinic acid production

Stylianou

Pateraki

Ladakis

et al. 2020

Biotechnol Biofuels

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“…After supplementing them with 10 g L À1 yeast extract, further fermentation at 37°C and pH 6.0 during 24 h reached the production of 94 and 82.6 g L À1 of LA, with an excellent yield of substrate to acid ratio of 0.94 both for FW and BW hydrolysates (Kwan et al, 2016). After eliminating the solid phase and the lipid layer, aqueous hydrolysates from FW were obtained containing 97-100 g L À1 glucose, while BW hydrolysates contained about 80 g L À1 glucose and 7.6 g L À1 fructose.…”

Section: Lactic Acidmentioning

confidence: 99%

“…These use either direct fermentation with LAB or they couple it to a previous hydrolysis step by fungus or enzymes, reaching concentrations of LA from 36 to 94 g L À1 and productivities from 0.21 to 2.78 g L À1 h À1 . The need for centralized food (and organic) waste recollection and a proper disposal in highly populated areas like Hong-Kong has derived in the progressive implementation of FW-treating machines able to reduce its high humidity and grind them to powder, while subsidies are granted for recycling studies and works (Kwan et al, 2016).…”

Section: Lactic Acidmentioning

confidence: 99%

“…After eliminating the solid phase and the lipid layer, aqueous hydrolysates from FW were obtained containing 97-100 g L À1 glucose, while BW hydrolysates contained about 80 g L À1 glucose and 7.6 g L À1 fructose. After supplementing them with 10 g L À1 yeast extract, further fermentation at 37°C and pH 6.0 during 24 h reached the production of 94 and 82.6 g L À1 of LA, with an excellent yield of substrate to acid ratio of 0.94 both for FW and BW hydrolysates (Kwan et al, 2016). The same authors modelled the kinetics to reflect the temporal evolution of substrates and products in these fermentative processes.…”

Section: Lactic Acidmentioning

confidence: 99%

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Food waste as a source of value‐added chemicals and materials: a biorefinery perspective

Esteban

Ladero

2018

Int J of Food Sci Tech

116

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Summary As the availability of fossil‐based resources declines, there is an impending necessity of finding alternative feedstock able to secure the production of fuels and chemicals. Exploitation of biomass as renewable source of chemicals is an attractive possibility, in particular the one derived from food waste (FW). Every year, large amounts of waste are generated within or at the end of the food supply chain at the consumers use stage and hence its valorisation attracts great attention. FW has proven a valuable feedstock for its exploitation to produce a wide array of intermediates and products with promising applications in industry, owing to their similar performance with respect to established products. These include organic acids and furans (generally used as platform chemicals to further products); polymers like bacterial cellulose, polyhydroxyalkanoates or chitin; biosurfactants; biolubricants; or nanoparticles. This overview covers the latest trends in chemical, enzymatic and biotechnological processes reported in literature on the production of these chemicals and materials, with a focus on the use of FW as raw material.

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“…In addition, nutrient-rich hydrolysates with high glucose (Botella, 2007) and free amino nitrogen (FAN) (Leung et al, 2012; Sun et al, 2014) levels were shown to have great potential to replace more expensive synthetic media. Kwan et al (2016) demonstrated the bioconversion of mixed food waste and bakery waste through fungal SSF by A. awamori 14331. After fungal SSF, fungal hydrolyses were performed in order to recover nutrients such as glucose, fructose, and FAN which are essential requirements for the subsequent lactic acid fermentation of Lactobacillus casei Shirota to produce lactic acid.…”

Section: Ssf Bioprocessing-based Biorefinery Perspectivementioning

confidence: 99%

Modern microbial solid state fermentation technology for future biorefineries for the production of added-value products

Manan

Webb

2017

Biofuel Res. J.

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Modern microbial solid state fermentation technology for future biorefineries for the production of added-value products HIGHLIGHTS  Novel biorefinery processes using solid state fermentation technology (SSF) was reviewed and discussed.  Future biorefineries based on SSF serve as ideal platforms for the production of added-value products.  Generic fermentation feedstocks provide a complete nutrient for subsequent microbial fermentations. The promise of industrial biotechnology has been around since Chaim Weizmann developed acetone-butanol-ethanol fermentation at the University of Manchester in 1917 and the prospects nowadays look brighter than ever. Today's biorefinery technologies would be almost unthinkable without biotechnology. This is a growing trend and biorefineries have also increased in importance in agriculture and the food industry. Novel biorefinery processes using solid state fermentation (SSF) technology have been developed as alternative to conventional processing routes, leading to the production of added-value products from agriculture and food industry raw materials. SSF involves the growth of microorganisms on moist solid substrate in the absence of free-flowing water. Future biorefineries based on SSF aim to exploit the vast complexity of the technology to modify biomass produced by agriculture and the food industry for valuable by-products through microbial bioconversion. In this review, a summary has been made of the attempts at using modern microbial SSF technology for future biorefineries for the production of many added-value products ranging from feedstock for the fermentation process and biodegradable plastics to fuels and chemicals. ARTICLE INFO ABSTRACT © 2017 BRTeam. All rights reserved.Journal homepage: www.biofueljournal.com Manan and Webb / Biofuel Research Journal 16 (2017) 730-740 Please cite this article as: Abdul Manan M., Webb C. Modern microbial solid state fermentation technology for future biorefineries for the production of added-value products.

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Valorisation of food waste via fungal hydrolysis and lactic acid fermentation with Lactobacillus casei Shirota

Cited by 114 publications

References 30 publications

Evaluation of organic fractions of municipal solid waste as renewable feedstock for succinic acid production

Evaluation of organic fractions of municipal solid waste as renewable feedstock for succinic acid production

Food waste as a source of value‐added chemicals and materials: a biorefinery perspective

Modern microbial solid state fermentation technology for future biorefineries for the production of added-value products

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