Submerged production of oxalic acid from glucose by immobilized Aspergillus niger

Appraisal of Artificial Neural Network and Response Surface Methodology in Modeling and Process Variable Optimization of Oxalic Acid Production from Cashew Apple Juice: A Case of Surface Fermentation

“…The effects of pH on oxalic acid production in A. niger have been reported, and the highest yield of oxalic acid was observed at pH 6 (Bohlmann et al 1998;Ruijter et al 1999;Mandal and Banerjee 2005). The optimum pH value predicted in this study was within the range earlier reported.…”

Plant Biomass from Grasses: An Underutilized Feedstock for Microbial Production of Chemicals and Biopolymers

“…The fermentable glucose released from the hydrolyzed cellulose following enzymatic treatment of the biomass can be converted to chemicals such as citric acid, fumaric acid, gluconic acid, itaconic acid, lactic acid, malic acid, oxalic acid, propionic acid and succinic acid as well as biopolymers such as polysaccharide gums by microbial strains. Citric acid, gluconic acid, itaconic acid, malic acid and oxalic acid can be produced from glucose by species of the fungus Aspergillus [5,6]. The bacterium Propionibacterium acidipropionici has been shown to produce propionic acid from glucose while species of Lactobacillus produce lactic acid from glucose [5].…”

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“…Carbohydrates have been widely tested as substrates for oxalic acid biosynthesis, among them: glucose [Mandal andBanerjee 2005, Walaszczyk et al 2014], sucrose [Strasser et al 1994, Cameselle et al 1998, Musiał et al 2005, Walaszczyk et al 2015, milk whey [Casamelle et al 1998], sugar beet molasses [Podgórski and Leśniak 2003], cashew apple juice [Emeko et al 2015, Betiku et al 2016 or corncobs [Mai et al 2016]. Nevertheless, sucrose was used in the first defined medium for organic acids synthesis by A. niger [Currie 1917] and it was recognized by Strasser et al [1994] as a suitable carbon source for oxalic acid production.…”

“…In citric acid bioproduction by A. niger sucrose was a better carbon source than glucose and its optimal concentration was set between 13 and 18% [Walaszczyk et al 2014]. In oxalic acid biosynthesis, the initial sucrose concentration was mostly either 100 or 150 g·dm -3 [Strasser et al 1994, Cameselle et al 1998, Foryś and Podgórski 2004, Mandal and Banerjee 2005, Musiał et al 2005, Walaszczyk et al 2015.…”