Non‐sterile corn steep liquor a novel, cost effective and powerful culture media for
            <i>Sporosarcina pasteurii</i>
            cultivation for sand improvement

Babakhani, Samira; Fahmi, Ahmad; Katebi, Hooshang; Ouria, Ahad; Toutakhane, Ali Majnouni; Ganbarov, Khudaverdi; Kafil, Hossein Samadi

doi:10.1111/jam.14866

Cited by 20 publications

(8 citation statements)

References 23 publications

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“…Finally, for future large‐scale field applications, the effectiveness of the culture and enrichment and the cost and environmental risks should be considered carefully. Some alternative inexpensive industrial substrates such as corn steep liquor, vegemite, torula, lactose mother liquor and food‐grade yeast extract that can produce a considerable urease activity have been reported to replace the expensive laboratory‐grade yeast extract (Achal et al, 2009; Chaparro‐Acuña et al, 2018; Joshi et al, 2018; Omoregie et al, 2019; Babakhani et al, 2020). Moreover, some industrial wastes can also be used as the nutrients such as chicken manure effluent (Yoosathaporn et al, 2016).…”

Section: Materials For Micpmentioning

confidence: 99%

Bio‐mediated soil improvement: An introspection into processes, materials, characterization and applications

Jiang

Wang

Chu

et al. 2021

Soil Use and Management

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For a long time in the practice of geotechnical engineering, soil has been viewed as an inert material, comprising only inorganic phases. However, microorganisms including bacteria, archaea and eukaryotes are ubiquitous in soil and have the capacity and capability to alter bio‐geochemical processes in the local soil environment. The cumulative changes could consequently modify the physical, mechanical, conductive and chemical properties of the bulk soil matrix. In recent years, the topic of bio‐mediated geotechnics has gained momentum in the scientific literature. It involves the manipulation of various bio‐geochemical soil processes to improve soil engineering performance. In particular, the process of microbial‐induced calcium carbonate precipitation (MICP) has received the most attention for its superior performance for soil improvement. The present work aims to shape a comprehensive understanding of recent developments in bio‐mediated geotechnics, with a focus on MICP. Referring to around one hundred studies published over the past five years, this review focuses on popular and alternative MICP processes, innovative raw materials and additives for MICP, emerging tools and testing methodologies for characterizing MICP at multi‐scale, and applications in emerging and/or unconventional geotechnical fields.

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Section: Materials For Micpmentioning

confidence: 99%

Bio‐mediated soil improvement: An introspection into processes, materials, characterization and applications

Jiang

Wang

Chu

et al. 2021

Soil Use and Management

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“…Additionally, the cost of the extraction and purification of sugars from steeping water limits its effective utilization. Moreover, the CSW can be combined with gluten, fibrous materials, and solids to use as animal feed [18,19], or to be used as a cost-effective nitrogenous source for microbiological purposes instead of a high-cost one [20,21]. In previous studies, CSW has been used as nitrogen source supplementation for LA [6,22], enzymes [23], and ethanol production [24] at low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Use of Corn-Steep Water Effluent as a Promising Substrate for Lactic Acid Production by Enterococcus faecium Strain WH51-1

et al. 2021

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Various challenges facing the industrial production of bio-based lactic acid (LA) such as cost of raw materials and nitrogen sources, as well as contamination risk by mesophilic and neutrophilic producers, should be overcome for the commercial production. This study aimed to investigate the feasibility of corn steep water (CSW) as a raw material for LA production using a newly thermo-alkali-tolerant lactic acid bacterium. The physicochemical characteristics of CSW were investigated. The high carbohydrates, proteins, amino acids, vitamins, essential elements, minerals, and non-protein nitrogenous compounds content confirmed that the CSW is a promising substrate for LA production. Out of 67 bacterial isolates, Enterococcus faecium WH51-1 was selected based on its tolerance to high temperatures and inhibitory compounds (sodium metabisulfate, sodium chloride, sodium acetate, and formic acid). Fermentation factors including sugar concentration, temperature, inoculum size, and neutralizing agents were optimized for LA production. Lactic acid concentration of about 44.6 g/L with a high yield (0.89 ± 0.02 g/g) was obtained using 60 g/L of CSW sugar, inoculum size 10% (v/v), 45 °C, and sodium hydroxide or calcium carbonate as a neutralizing agent. These results demonstrated the potential of strain WH51-1 for LA production using CSW effluent as raw material.

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“…Corn steep liquor is a by-product of the wet milling process and contains crude proteins, amino acids, vitamins, and other nutrients [ 29 ]. It has been employed as an inexpensive source of nitrogen for microorganisms in the production of enzymes, antibiotics, and other fermentation products [ 30 ]. Different concentrations of corn steep liquor (0, 1, 2, 3, 4 and 5 g/L) were used to investigate the effects of corn steep liquor on γ-PGA production.…”

Section: Resultsmentioning

confidence: 99%

Efficient molasses utilization for low-molecular-weight poly-γ-glutamic acid production using a novel Bacillus subtilis strain

Chen

et al. 2022

Microb Cell Fact

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Background Poly-γ-glutamic acid (γ-PGA) is a biopolymer and has various applications based on its biocompatibility, non-toxicity, and edibility. Low-molecular-weight (Mw)-γ-PGA has promising applications in agriculture and pharmaceuticals. It is traditionally produced by enzymatic hydrolysis. Cost-effective bioproduction of low-Mw-γ-PGA is essential for commercial application of γ-PGA. Results Bacillus subtilis 242 is a newly isolated low-Mw-γ-PGA-producing strain. To develop cost-effective production of γ-PGA using this newly isolated strain, cane molasses and corn steep liquor were used to produce γ-PGA. The concentration of cane molasses was optimized and 100 g/L cane molasses resulted in high γ-PGA production. The effects of yeast extract and corn steep liquor on γ-PGA yield were investigated. High concentration of γ-PGA was obtained in the medium with corn steep liquor. A concentration of 32.14 g/L γ-PGA was achieved in fed-batch fermentation, with a productivity of 0.67 g/L/h and a percentage yield (gγ-PGA/gglutamate) of 106.39%. The Mw of γ-PGA was 27.99 kDa. Conclusion This study demonstrated the potential application of B. subtilis 242 for cost-effective production of low-Mw-γ-PGA from cane molasses.

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Non‐sterile corn steep liquor a novel, cost effective and powerful culture media for Sporosarcina pasteurii cultivation for sand improvement

Cited by 20 publications

References 23 publications

Bio‐mediated soil improvement: An introspection into processes, materials, characterization and applications

Bio‐mediated soil improvement: An introspection into processes, materials, characterization and applications

Use of Corn-Steep Water Effluent as a Promising Substrate for Lactic Acid Production by Enterococcus faecium Strain WH51-1

Efficient molasses utilization for low-molecular-weight poly-γ-glutamic acid production using a novel Bacillus subtilis strain

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