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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of the temperature on the kinetics of cocoa bean shell fat extraction using pressurized ethanol and evaluation of the lipid fraction and defatted meal

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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 type: 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 type: 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 type: Regular Research Grants
FAPESP's process: 14/21252-0 - Equilibrium and production processes of biofuels and bioproducts
Grantee:Antonio José de Almeida Meirelles
Support type: Research Projects - Thematic Grants