Publications by authors named "Valcineide O Andrade Tanobe"
The hemicellulosic fraction of lignocellulosic biomass is a very important material, due to the significant concentration of pentoses present in its composition and that can be used sustainably in biotechnological processes such as the production of fumaric acid. Research efforts are currently being promoted for the proper disposal and valorization of empty fruit bunches (EFB) from oil palm. In this work, seventeen Rhizopus species were evaluated in a fermentation medium with EFB hydrolyzate, without detoxification, as a carbon source for fumaric acid production.
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- The study aimed to assess how different organic solvents and stationary phases affect the extraction and purification of carotenoids, particularly torularhodin, from the yeast Sporobolomyces ruberrimus.
- The best results were achieved using a mixture of acetone and hexane or ethyl ether, with the 9:1 acetone:hexane blend yielding the highest carotenoid recovery, along with a notable cell lysis rate.
- The use of silica as a stationary phase in preparative chromatography proved effective, resulting in successful purification of torularhodin, as confirmed by various chromatography techniques.