Determination of inorganic composition and metallic species bioavailable fraction in cocoa-based food

• Grant number: 11/21023-3
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): March 01, 2012
• Effective date (End): August 31, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Solange Cadore
• Grantee: Rafaella Regina Alves Peixoto
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated scholarship(s): 13/21962-5 - Study of the bioavailability of metallic elements from cocoa products, BE.EP.DD

Abstract

The objective of this project is the determination of the inorganic composition of cocoa-based food and the establishment of sample preparation methods for in vitro determination of metallic species bioavailability. For the bioavailability study it will be use a method of gastrointestinal digestion in vitro, where digestion will simulate the steps that occur in the mouth, stomach and intestine and, still, a step of dialysis. The quantification of the analytes, total concentration in the food and the bioavailable fraction, will be held using spectrometric methods of analysis, such as Optical Emission with Inductively Coupled Plasma Spectrometry (ICPOES) and Graphite Furnace Atomic Absorption Spectrometry (GFAAS), depending on the content of the analyte to be determined. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

PEIXOTO, RAFAELLA R. A.; DEVESA, VICENTA; VELEZ, DINORAZ; LUISA CERVERA, M.; CADORE, SOLANGE. Study of the factors influencing the bioaccessibility of 10 elements from chocolate drink powder. Journal of Food Composition and Analysis, v. 48, p. 41-47, MAY 2016. (11/21023-3, 13/21962-5)

VILLA, JAVIER E. L.; PEIXOTO, RAFAELLA R. A.; CADORE, SOLANGE. Cadmium and Lead in Chocolates Commercialized in Brazil. Journal of Agricultural and Food Chemistry, v. 62, n. 34, p. 8759-8763, AUG 27 2014. (11/07759-7, 11/21023-3)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

PEIXOTO, Rafaella Regina Alves. Metallic elements in chocolate drink powder: total contents and bioaccessible and bioavailable fractions. 2015. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Instituto de Química Campinas, SP.