Study of in vitro bioaccessibility of aluminium in coffee prepared at high pressure machines

• Grant number: 19/02848-3
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: April 01, 2019
• End date: July 31, 2019
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal Investigator: Marco Aurelio Zezzi Arruda
• Grantee: Isabelle Pereira Squizzato
• Supervisor: Manuel Miro-Llado
• Host Institution: Instituto de Química (IQ). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Institution abroad: Universitat de les Illes Balears (UIB), Spain
• Associated to the scholarship: 18/05335-4 - Evaluation of possible capsule coffee contamination prepared in machines at high pressures by aluminum through emission spectrometry and inorganic mass spectrometry, BP.IC

Abstract

Coffee is one of the most consumed and appreciated products in the world. Until now, moderate consumption of coffee by healthy individuals - 3 to 5 cups daily - is not contraindicated. However, the coffees from capsules may have an expressive amount of aluminium (Al) as a result of the breaking metal casing of the package during the extraction procedure, since it is performed at high pressure, e.g., up to 19 bar for homemade coffee machines. Aluminium has unknown role in human biology, however, there is evidence that excess of this element may be linked to acute and chronic diseases, including degenerative ones, such as Alzheimer's and Parkinson's. In this way, the evaluation of Al bioaccessibility from ingested drink coffee, after simulation of an in vitro gastrointestinal digestion, is then welcome to access the amount of Al that can be released from the sample matrix, and, then,to estimate a possible human intoxication. (AU)