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ABSTRACT
The present work made a comparative study between two purification methods, column chromatography and recrystallization, for compounds derived from cardanol, a by-product of the cashew industry (Anacardium occidentale L.). The compounds were successfully synthesized and characterized, focusing our attention to results obtained in terms of yield, purity, generation of solid waste and amount of solvent used in each purification process. For all the synthesized compounds, the amount of solvent used was greatly reduced in the recrystallization process, with purities above 80%, when compared to chromatographic column, which still demands high amounts of eluent.
Acknowledgements
The authors thank the Almonds Company in Brazil for providing cashew nuts, CENAUREMN (Centro Nordestino de Aplicação e Uso da RMN, in Brazil) for the NMR analyses, Universitá del Salento for the MALDI analysis and laboratory for the HPLC analysis.
Funding
The authors thank the support from CAPES and CNPq (Brazilian agencies).