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Green instrumental methods and chemometrics to investigate functional properties in star anise (Illicium verum) and detection of adulterations and bioactive potential in specialty coffees and capsules

Grant number: 19/21062-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2021
Effective date (End): February 28, 2023
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Science
Principal researcher:Juliana Azevedo Lima Pallone
Grantee:Michel Rocha Baqueta
Home Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil


Nowadays, the development of green analytical methods capable of investigating different analytes from different sources is growing. Among these, coffee and star anise are noteworthy. Infusions consumed widely, they are sources of nutrients and bioactive compounds. At the same time, there is significant interest in obtaining and evaluating these compounds in foods using "green" extraction methods and fast and non-destructive analytical techniques. In the food analysis, the use of techniques such as Near Infrared Spectroscopy (NIR), digital imaging (RGB - red, green and blue) and Laser Induced Breakdown Spectroscopy (LIBS) are emerging and promising approaches. The advantage of these techniques over traditional methods is that they are non-destructive and do not require extensive sample preparation, so several products can be evaluated. Moreover, when associated with appropriate data analysis, both techniques represent suitable alternatives for analysis of the bioactive potential, quality, authenticity, typicality and geographical origin of several food. Taking this background into consideration, this study aims to extract bioactive compounds and shikimic acid (anti-inflammatory compound) from star anise using a combination of supercritical CO2 and pressurized water and the application of NIR spectroscopy and digital imaging (RGB) combined with chemometrics for analysis of bioactive potential, quality parameters and detection of coffee adulteration, including specialty and capsules and star anise properties. Additionally, it seeks to investigate the feasibility of using LIBS as an alternative method to control adulteration. The data obtained will be unpublished and may contribute with relevant information related to consumption, beneficial effects to health, maintenance of the organism and food safety of the target products, using green analytical techniques. (AU)

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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)
BAQUETA, MICHEL ROCHA; PIZANO, FERNANDA PEIXOTO; VILLANI, JULIANA DAMASCENO; HENAO TORO, SANDRA JULIETH; ARISSETO BRAGOTTO, ADRIANA PAVESI; VALDERRAMA, PATRICIA; LIMA PALLONE, JULIANA AZEVEDO. Kurtosis-based projection pursuit analysis to evaluate South American rapadura. Food Chemistry, v. 368, JAN 30 2022. Web of Science Citations: 0.

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