Isolation and Characterization of a New Ferulic-Acid-Biotransforming Bacillus megaterium from Maize Alkaline Wastewater (Nejayote)

Baqueiro-Peña, Itzamná; Contreras-Jácquez, Victor; Kirchmayr, Manuel R.; Mateos-Díaz, Juan Carlos; Valenzuela‐Soto, Elisa M.; Asaff-Torres, Alí

doi:10.1007/s00284-019-01726-4

Cited by 10 publications

(3 citation statements)

References 33 publications

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“…These strains were incubated with three different concentrations of UA (0.01 mg/mL, 0.1 mg/mL and 0.5 mg/mL) along with untreated cultures as controls. The method used was based on the resting cell method, commonly used for biotransformation studies (Baqueiro-Peña et al, 2019;Jackson et al, 2019;Luziatelli et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Lichen-associated bacteria transform antibacterial usnic acid to products of lower antibiotic activity

et al. 2021

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Introductionmentioning

confidence: 99%

Lichen-associated bacteria transform antibacterial usnic acid to products of lower antibiotic activity

et al. 2021

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“…In other studies, two native isolated bacteria ( Bacillus flexus ) were used to biosynthesize amylases, xylanases, proteases and phenolic acid esterase [ 32 ]. Recently, Bacillus megaterium (a native nejayote strain) was able to transform ferulic acid present in the effluent into 4-vinylguaiacol [ 33 ]. Moreover, nejayote in combination with other residual effluents such as vinasse (a waste from tequila production) and swine wastewater allow for obtaining bioenergy or can used for the growth of microalgae [ 24 , 34 ].…”

Section: Introductionmentioning

confidence: 99%

Optimized Production of a Redox Metabolite (pyocyanin) by Pseudomonas aeruginosa NEJ01R Using a Maize By-Product

et al. 2020

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Pseudomonas aeruginosa metabolizes pyocyanin, a redox molecule related to diverse biological activities. Culture conditions for the production of pyocyanin in a defined medium were optimized using a statistical design and response surface methodology. The obtained conditions were replicated using as substrate an alkaline residual liquid of cooked maize and its by-products. The untreated effluent (raw nejayote, RN) was processed to obtain a fraction without insoluble solids (clarified fraction, CL), then separated by a 30 kDa membrane where two fractions, namely, retentate (RE) and filtered (FI), were obtained. Optimal conditions in the defined medium were 29.6 °C, 223.7 rpm and pH = 6.92, which produced 2.21 μg mL−1 of pyocyanin, and by using the wastewater, it was possible to obtain 3.25 μg mL−1 of pyocyanin in the retentate fraction at 40 h. The retentate fraction presented the highest concentration of total solids related to the maximum concentration of pyocyanin (PYO) obtained. The pyocyanin redox behavior was analyzed using electrochemical techniques. In this way, valorization of lime-cooked maize wastewater (nejayote) used as a substrate was demonstrated in the production of a value-added compound, such as pyocyanin, a redox metabolite of Pseudomonas aeruginosa NEJ01R.

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“…Otro sustrato interesante para el proceso de fermentación bacteriana es el nejayote, el cual es un subproducto obtenido a partir de la nixtamalización (proceso usado en México para la producción de tortillas). Este líquido alcalino presenta un alto contenido de compuestos orgánicos (Castro-Muñoz et al, 2017) y del cual se ha reportado la búsqueda de materiales con valor agregado (polifenoles, gomas y componentes de calcio) para la industria (Díaz-Montes et al, 2016), así como el aislamiento de bacterias con la capacidad de resistir altas concentraciones de ácido ferúlico para la producción de aromas (Baqueiro-Peña et al, 2019). Por lo tanto, este subproducto podría ser utilizado para complementar un medio de cultivo económico destinado a este proceso biotecnológico.…”

Section: Introductionunclassified

Statistical optimization and effect of mesquite honey and maize alkaline wastewater (nejayote) as substrates for cellular biomass production and polyhydroxybutyrate biosynthesis by Bacillus cereus 4N

Martínez-Herrera¹,

Juárez-Ibarra²,

Cantú³

et al. 2020

Mexjbiotechnol

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Polyhydroxybutyrate (PHB) is a bacterial biopolymer with interesting features that make it useful in diverse areas of human development. The problem around this biomaterial is its high production cost, so researchers have focused their attention on the search of economic substrates to be used in the fermentation process. The present work is focused on designing a formulation based on mesquite honey and nejayote for cellular biomass and PHB generation by Bacillus cereus 4N, relying on the central compounds design and factorial design as statistical tools. The substrates employed were characterized by bromatological analysis and the biopolymer obtained from the fermentation process was analyzed by FT-IR. These results show that mesquite honey at 15 g/L influence a high cellular biomass

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Isolation and Characterization of a New Ferulic-Acid-Biotransforming Bacillus megaterium from Maize Alkaline Wastewater (Nejayote)

Cited by 10 publications

References 33 publications

Lichen-associated bacteria transform antibacterial usnic acid to products of lower antibiotic activity

Lichen-associated bacteria transform antibacterial usnic acid to products of lower antibiotic activity

Optimized Production of a Redox Metabolite (pyocyanin) by Pseudomonas aeruginosa NEJ01R Using a Maize By-Product

Statistical optimization and effect of mesquite honey and maize alkaline wastewater (nejayote) as substrates for cellular biomass production and polyhydroxybutyrate biosynthesis by Bacillus cereus 4N

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