Corn pericarp pretreated with dilute acid: bioconversion of sugars in the liquid fraction to ethanol and studies on enzymatic hydrolysis of the solid fraction

Granados-Arvizu, J.A.; Sabogal, Diana Victoria Melo; Amaro-Reyes, Aldo; Gracida, Jorge; García-Almendárez, Blanca E.; Castaño‐Tostado, Eduardo; Regalado‐González, Carlos

doi:10.1007/s13399-019-00534-x

Cited by 6 publications

(1 citation statement)

References 45 publications

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“…On the contrary, acetic acid is only reduced on a very low level (only 4%), as activated charcoal detoxification is able to effectively reduce inhibitors, such as HMF, furfural, formic acid, and phenols, but there is not much evidence that this method is effective for acetic acid reduction [22]. Substantial furan and phenolic compound reductions by activated charcoal detoxification were also achieved from hydrolysates of the brewery's spent grain [23], sweet sorghum bagasse [24], olive tree pruning biomass [25], and corn pericarp [26].…”

Section: Eop Hydrolysate Composition and Detoxificationmentioning

confidence: 99%

Xylitol Production from Exhausted Olive Pomace by Candida boidinii

et al. 2020

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In this work, the production of xylitol from a hemicellulosic hydrolysate of exhausted olive pomace (EOP), a residue originated in the olive oil production process by Candida boidinii, was assessed. The hydrolysate was obtained by dilute acid pretreatment of EOP at 170 °C and 2% H2SO4 (w/v). A previous detoxification step of the hydrolysate was necessary, and its treatment with activated charcoal and ion-exchange resin was evaluated. Prior to fermentation of the hydrolysate, fermentation tests in synthetic media were performed to determine the maximum xylitol yield and productivity that could be obtained if inhibitory compounds were not present in the medium. In addition, the glucose existing in the media exerted a negative influence on xylitol production. A maximum xylitol yield of 0.52 g/g could be achieved in absence of inhibitor compounds. Fermentation of the hemicellulosic hydrolysate from EOP after detoxification with ion-exchange resin resulted in a xylitol yield of 0.43 g/g.

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