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Development of a two-dimensional extraction, separation and analysis system for evaluating the bioactivity of phytochemicals

Grant number: 18/14582-5
Support type:Research Grants - Young Investigators Grants- Phase 2
Duration: May 01, 2019 - April 30, 2024
Field of knowledge:Agronomical Sciences - Food Science and Technology
Principal Investigator:Maurício Ariel Rostagno
Grantee:Maurício Ariel Rostagno
Home Institution: Faculdade de Ciências Aplicadas (FCA). Universidade Estadual de Campinas (UNICAMP). Limeira , SP, Brazil
Assoc. researchers:Adriane Elisabete Antunes de Moraes ; Ana Carolina de Aguiar ; Augusto Ducati Luchessi ; Diogo Thimoteo da Cunha ; Fernando Moreira Simabuco ; Julian Martínez ; Rosângela Maria Neves Bezerra ; Tânia Forster Carneiro
Associated research grant:13/04304-4 - Development of integrated systems for the analysis of bioactive compounds in natural products employing supercritical technology, AP.JP

Abstract

This research project proposes the development of a two-dimensional extraction, separation and analysis system (PLEgrad-SPE x UHPLC) by coupling extraction with gradient pressurized liquids (PLEgrad) with solid phase extraction (SPE) in the first dimension and orthogonally with ultra-high pressure chromatography (UHPLC) in the second dimension. The objective is to develop a system that allows the characterization of the chemical composition of natural raw materials in a fast, efficient and with real-time monitoring, while allowing the production of small quantities of extracts obtained through the fractionation of the present compounds. These fractions should be well characterized chemically and with low contamination between them. The system will be validated with several samples, including soybean (Glycine max), Brazilian ginseng (Pfaffia glomerata), black tea and green tea (Camellia sinensis), mate (Ilex paraguariensis), coffee (Coffea arabica), pomegranate granatum), orange peel (Citrus sinensis), sicilian lemon peel (Citrus x limon) apple peel (Malus domestica), jabuticaba bark (Myrciaria cauliflora), rosemary (Rosmarinus officinalis) and sage (Salvia officinalis). Initially the rapid UHPLC analysis methods will be developed that will be used in the second separation dimension. Several analysis conditions (temperature, column size, flow, volume and injection solvent and mobile phase composition) will be evaluated for an ultra-fast separation method (time between samples <2.0 min). Subsequently, different extraction conditions will be evaluated by SPE coupled gradient PLE, including temperature, pressure, sample amount, adsorbent type, flow, solvent and duration of the extraction / elution gradient. This proposal consists of a continuation of the Young Researcher project (FAPESP 2013 / 04304-4), seeking to consolidate this line of research at FCA / UNICAMP and to continue the training of qualified human resources. (AU)