| Full text | |
| Author(s): |
Okiyama, Dayane C. G.
[1]
;
Soares, Ingrid D.
[1]
;
Toda, Tatiane A.
[1]
;
Oliveira, Alessandra L.
[2]
;
Rodrigues, Christianne E. C.
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Sao Paulo, Dept Food Engn ZEA FZEA, Separat Engn Lab LES, BR-13635900 Pirassununga, SP - Brazil
[2] Univ Sao Paulo, Dept Food Engn ZEA FZEA, High Pressure & Nat Prod Lab LTAPPN, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | INDUSTRIAL CROPS AND PRODUCTS; v. 130, p. 96-103, APR 2019. |
| Web of Science Citations: | 0 |
| Abstract | |
Cocoa byproducts are important inputs to the food industry. In recent decades, the consumption of these products has been reported to increase while the production of cocoa beans has reportedly decreased. In this scenario, the use of the cocoa bean shell (CS) as an alternative source of cocoa fat is a good strategy to increase the fat supply for use in food products. The main aim of this study was to characterize CS; extract fat from CS using pressurized ethanol as the solvent; perform kinetics extraction trials at temperatures of 60, 75 and 90 degrees C; and evaluate the lipid fraction and defatted meal characteristics. Pressurized liquid extraction (PLE) was found to be a very efficient way to obtain fat from cocoa shells, achieving high extraction yield values (up to 90%) after a single stage of contact. An increase in temperature positively influenced the composition of fat in terms of the tocopherol content, but negatively influenced the protein solubility in the defatted meal obtained at 90 degrees C. The experimental kinetic data of CS fat extraction were successfully mathematically described (absolute relative deviation up to 0.85%), allowing calculation of a diffusion coefficient with values between 4.56 and 12.15 x 10(-12)m(2)s(-1), which increased with increasing extraction temperature. (AU) | |
| FAPESP's process: | 16/15865-5 - Alcoholic extraction of fat and biocompounds of cocoa shell |
| Grantee: | Ingrid Denardi Soares |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 15/03579-5 - Reuse of cocoa shell for fat extraction with alcoholic solvents |
| Grantee: | Dayane Cristina Gomes Okiyama |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 14/09446-4 - Development of a process of vegetable oil extraction using alcoholic solvents: evaluation of oil composition and changes in the protein fraction |
| Grantee: | Christianne Elisabete da Costa Rodrigues |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts |
| Grantee: | Antonio José de Almeida Meirelles |
| Support Opportunities: | Research Projects - Thematic Grants |