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| AMARAL,Tatiana Nunes; JUNQUEIRA,Luciana Affonso; ALVES,Cibele Cristina Oliveira; OLIVEIRA,Natália Leite; PRADO,Mônica Elisabeth Torres; RESENDE,Jaime Vilela de. |
| Abstract Hydrocolloids of Pereskia aculeata Miller (OPNH) are potential ingredients in food industry as emulsifiers and stabilizers. The extraction process of OPNH requires the removal of pigments with activated carbon. Because this step is critical to the quality of the ingredient and has an impact on costs, a new activated carbon has been developed with residues from the same process. Residues activated with NaOH and H3PO4 (300 °C, 1 h) were subjected to batch adsorption tests in model solutions of malachite green (MG), carbohydrate and protein. Residue treated with 85% H3PO4 (OPNAC) had higher productivity and MG adsorption capacity, displaying a predominantly microporous surface (MEV/BET) with chemical activation confirmed by TG/FTIR. OPNAC showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Adsorption; Carbohydrate; Malachite green; Protein; Sustainable process. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500077 |
