Enzymatic saccharification of banana peel and sequential fermentation of the reducing sugars to produce lactic acid

Martínez-Trujillo, Aurora; Bautista-Rangel, Karina; García-Rivero, M.; Martínez-Estrada, Abigail; Cruz-Díaz, Martín R.

doi:10.1007/s00449-019-02237-z

Cited by 17 publications

(7 citation statements)

References 48 publications

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“…These observations suggest that specific enzymes are produced according to the composition of the substrate, as has been reported before (Silva et al, 2018). On the other hand, we have shown that the saccharification of agricultural residues can be improved by the joint action of laccases and hydrolytic activities that were produced by independent fungal cultures (Martínez-Trujillo et al, 2020). Thus, the finding that A. niger sp.…”

Section: Enzyme Activities In Solid-state Culturesupporting

confidence: 80%

“…At the laboratory level, the combined action of oxidases and hydrolases produced by fungal species cultured separately can increase the degradation and the saccharification yield of lignocellulosic materials (Martínez-Trujillo et al, 2020). Production of all these enzymes in the same culture would be far more efficient, which would be possible by establishing mixed cultures were white-rot fungi and hydrolytic fungi species interact, thus producing both kinds of enzymes in parallel.…”

Section: Introductionmentioning

confidence: 99%

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Conditioning and use of prickly pear peels for the production of lignocellulosic enzymes by Aspergillus niger sp. on solid-state cultures

Vargas-Solano¹,

Martínez-Trujillo²,

Membrillo-Venegas³

2021

RMIQ

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Section: Enzyme Activities In Solid-state Culturesupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Conditioning and use of prickly pear peels for the production of lignocellulosic enzymes by Aspergillus niger sp. on solid-state cultures

Vargas-Solano¹,

Martínez-Trujillo²,

Membrillo-Venegas³

2021

RMIQ

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“…Biomass does not decrease until the end of fermentation, so the decline in fermentation capacity is not caused by cell death. Another possible cause is metabolic feedback inhibition, consisting mainly of target product inhibition (L-tyrosine) and metabolic by-product inhibition (acetic acid) [ 18 , 19 ]. However, because the dissolved L-tyrosine (low solubility easy to crystallize) and acetic acid (less than 0.5 g/L ( Figure 1(a ,c)) concentrations were very low, metabolite feedback inhibition was discarded.…”

Section: Resultsmentioning

confidence: 99%

Enhancing the efficiency of L-tyrosine by repeated batch fermentation

Chen

et al. 2020

Bioengineered

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L-tyrosine is a widely used aromatic amino acid with an increasing market demand. Improving the parameters of L-tyrosine production results in a more cost-effective process that is of great interest for industrial applications. E. coli GHLTYR-168 was used to ferment L-tyrosine, with a productivity of 1.73 g/(L•h) and a yield of 17.6%. To further increase its production efficiency, repeated batch fermentation was applied to L-tyrosine, in which both replacement time points and ratios were studied during different fermentations. The broth substitution time point had no significant effect on L-tyrosine subjected to repeated batch fermentation, and 70% broth replacement ratio was the best choice. Repeated batch fermentation was performed in 5 batches within 100 h, among which the efficiency of the third batch fermentation was the highest. In the third batch fermentation, the productivity and yield were 2.53 g/(L•h) and 30.1%, respectively. Compared with that during fedbatch fermentation, the productivity and yield of L-tyrosine increased by 43.8% and 74.0%, respectively, during repeated batch fermentation. This is the highest level of L-tyrosine fermentation reported so far. Thus, repeated batch fermentation of L-tyrosine can improve its production efficiency.

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“…used banana peel as substrate in solid‐state fermentation to produce enzymes by Aspergillus niger MS23 and Aspergillus terreus MS105, and the crude enzyme extracts obtained were applied for the hydrolysis of the same substrate, that is banana peel. Martínez‐Trujillo et al 45 . performed hydrolysis of banana peel using oxidases and hydrolases in a 1 L bioreactor, which resulted in a release of 18 g RS L –1 (60% of which was glucose) after 24 h of treatment.…”

Section: Resultsmentioning

confidence: 99%

Screening and cocktail optimization using experimental mixture design: enzymatic saccharification as a biological pretreatment strategy

Pinheiro

Horváth

Lundin

et al. 2021

Biofuels Bioprod Bioref

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Biofuels contribute environment‐friendly, renewable energy, minimizing dependence on fossil energy. The pretreatment of biomass is a practical step that accelerates and facilitates the hydrolysis of complex materials. This work aimed to screen, select, and study cocktail formulations for biomass hydrolysis, where the enzymes were provided both from a commercial source (Trichoderma reesei, Novozymes®) and through the cultivation of Aspergillus brasiliensis and Aspergillus tamarii Kita. Experimental mixture designs were used to optimize the enzymatic conversion of substrates into simple sugars. A crude extract rich in amylase (AAB) had a significant favorable influence on cornmeal hydrolysis by maximizing the yield of reducing sugars (RS) (173 μmol mL–1). Celluclast™, rich in cellulase, significantly affected the hydrolysis of banana peel, maximizing the RS yield (175 μmol mL–1). Variable degrees of enzyme synergism were evident from statistical analysis of the biomass hydrolysis. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Enzymatic saccharification of banana peel and sequential fermentation of the reducing sugars to produce lactic acid

Cited by 17 publications

References 48 publications

Conditioning and use of prickly pear peels for the production of lignocellulosic enzymes by Aspergillus niger sp. on solid-state cultures

Conditioning and use of prickly pear peels for the production of lignocellulosic enzymes by Aspergillus niger sp. on solid-state cultures

Enhancing the efficiency of L-tyrosine by repeated batch fermentation

Screening and cocktail optimization using experimental mixture design: enzymatic saccharification as a biological pretreatment strategy

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