Lactic acid fermentation from food waste with indigenous microbiota: Effects of pH, temperature and high OLR

Tang, Jialing; Wang, Xiaochang C.; Hu, Yisong; Zhang, Yongmei; Li, Yu-You

doi:10.1016/j.wasman.2016.03.034

Cited by 218 publications

(125 citation statements)

References 49 publications

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“…In addition to the operation mode of fermentation, various previous investigations in the literature also used approaches from different aspects to intensify the LA production, reducing its production cost, e.g., utilizing economical feedstock sources [50,51,52], selecting highly-productive strains of microorganisms [53], and optimizing fermentation conditions [31,54]. Moreover, the lactate in the permeate can be treated further by other membrane processes, e.g., bipolar electrodialysis can convert it into LA, while regenerated alkaline can be reused for the neutralization of the fermentation broth [55,56,57].…”

Section: Discussionmentioning

confidence: 99%

Anaerobic Membrane Bioreactor for Continuous Lactic Acid Fermentation

2017

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Membrane bioreactor systems can enhance anaerobic lactic acid fermentation by reducing product inhibition, thus increasing productivity. In batch fermentations, the bioconversion of glucose is strongly inhibited in the presence of more than 100 g·L−1 lactic acid and is only possible when the product is simultaneously removed, which can be achieved by ceramic membrane filtration. The crossflow velocity is a more important determinant of flux than the transmembrane pressure. Therefore, to stabilize the performance of the membrane bioreactor system during continuous fermentation, the crossflow velocity was controlled by varying the biomass concentration, which was monitored in real-time using an optical sensor. Continuous fermentation under these conditions, thus, achieved a stable productivity of ~8 g·L−1·h−1 and the concentration of lactic acid was maintained at ~40 g·L−1 at a dilution rate of 0.2 h−1. No residual sugar was detected in the steady state with a feed concentration of 50 g·L−1.

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Section: Discussionmentioning

confidence: 99%

Anaerobic Membrane Bioreactor for Continuous Lactic Acid Fermentation

2017

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“…64 For example, 0.46 g/g of LA was produced using the indigenous bacteria of food wastes, Lactobacillus being the dominant species. 65 Genetic modifi cation of lactic acid-producing bacteria Mutation, heterologous expression and directed evolution are interesting options for improving the phenotype and genotype of LA-producing microorganisms, fi tting the metabolisms to LA production, and increasing stress tolerance.…”

Section: Co-cultures and Mixed Culturesmentioning

confidence: 99%

Biotechnological advances in lactic acid production by lactic acid bacteria: lignocellulose as novel substrate

Cubas-Cano

González‐Fernández

Ballesteros

et al. 2018

Biofuels Bioprod Bioref

152

101

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The production of high added-value products from lignocellulose is proposed as a suitable alternative to petroleum-based resources in terms of environmental preservation, sustainability, and circular economy. Lactic acid is a versatile building block that can be produced via fermentative routes by several groups of microorganisms, including yeasts and microalgae, which are bacteria recognized to achieve the highest concentrations. Lactic acid, among other substances, can be used as a starting point in the production of poly-lactic acid, which is a biopolymer with many applications due to its resistance, durability, biodegradability, and biocompatibility. Lactic acid production can be performed from lignocellulosic biomass. However, lactic acid production from lignocellulose faces several hurdles such as carbohydrate hydrolysis to release sugars, the co-utilization of sugar mixtures by the fermenting microorganism, and the presence of degradation compounds released during pretreatment. In this review, a general overview of lactic-acid bacterial fermentation from lignocellulose is provided, starting from the potential substrates and their composition, the different metabolic pathways involved, and the purifi cation steps. The main challenges are discussed and the newest approaches to solve the limitations of the process are proposed.

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“…In addition, it is advantageous as an effective method of environmental waste management Abdel-Rahman and Sonomoto 2016;Tang et al 2016).…”

Section: Bioresourcescommentioning

confidence: 99%

Lactic Acid Production to Purification: A Review

Komesu

Oliveira

Martins

et al. 2017

BioRes

207

114

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Lactic acid is a naturally occurring organic acid that can be used in a wide variety of industries, such as the cosmetic, pharmaceutical, chemical, food, and, most recently, the medical industries. It can be made by the fermentation of sugars obtained from renewable resources, which means that it is an eco-friendly product that has attracted a lot of attention in recent years. In 2010, the U.S. Department of Energy issued a report that listed lactic acid as a potential building block for the future. Bearing the importance of lactic acid in mind, this review summarizes information about lactic acid properties and applications, as well as its production and purification processes.

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Lactic acid fermentation from food waste with indigenous microbiota: Effects of pH, temperature and high OLR

Cited by 218 publications

References 49 publications

Anaerobic Membrane Bioreactor for Continuous Lactic Acid Fermentation

Anaerobic Membrane Bioreactor for Continuous Lactic Acid Fermentation

Biotechnological advances in lactic acid production by lactic acid bacteria: lignocellulose as novel substrate

Lactic Acid Production to Purification: A Review

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