Artículos de revistas
Lycopene-rich Avocado Oil Obtained By Simultaneous Supercritical Extraction From Avocado Pulp And Tomato Pomace
Registro en:
The Journal Of Supercritical Fluids. Elsevier Science Bv, v. 120, p. 1 - 6, 2017.
0896-8446
1872-8162
WOS:000391075500001
10.1016/j.supflu.2016.09.021
Autor
Barros
Helena D. F. Q.; Grimaldi
Renato; Cabral
Fernando A.
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Tomato pomace is a residue of tomato processing which contains lycopene and oil, and is generated in large quantities by the tomato processing industry. Raw avocado oil is a special oil similar to olive oil. In order to combine the advantage of using a clean technology with supercritical carbon dioxide (scCO(2)) to extract avocado oil and use it as a co-solvent with scCO(2) in carotenoid extraction from tomato pomace, simultaneous extractions of oil and lycopene were carried out to produce an avocado oil enriched with lycopene and a semi defatted avocado cake of potential commercial value. Therefore, freeze-dried avocado and tomato pomace were placed separately in the same fixed bed extractor, where lipids and lycopene were simultaneously extracted with scCO(2), first passing through the avocado bed and then both scCO(2) and the oil extracted from avocado passed through the second bed of tomato pomace. Lipids extracted in the first bed served as a co-solvent with scCO(2) for lycopene extraction in the second bed. The experiments were performed using different proportions of the raw materials at 50 degrees C and 400 bar and in equal parts of avocado pulp and tomato pomace while varying the temperature and pressure conditions (40, 50 and 60 degrees C; 200, 300 and 400 bar). The results showed that the lycopene extraction yields (lycopene recovery) increased as the proportion of avocado increased and the best condition for extraction of lycopene present in tomato pomace was at 400 bar and 50 degrees C. The extracts are raw avocado oils enriched with about 110-170 mu g of lycopene per gram of oil, resulting from up to 80% recovery of oil and lycopene. The resulting avocado cake is a semi-defatted product with potential commercial value. (C) 2016 Elsevier B.V. All rights reserved. 120 1 6 Sao Paulo Research Foundation FAPESP [2012/51317-1] Capes Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)