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Obtaining ora-pro-nobis (Pereskia aculeata Miller) extract for application on carriers systems of bioactive compounds

Grant number: 16/03957-2
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2016
Effective date (End): December 31, 2016
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Engineering
Principal Investigator:Vinícius Borges Vieira Maciel
Grantee:Renata Queiroz Bezerra
Host Institution: Faculdade de Zootecnia e Engenharia de Alimentos (FZEA). Universidade de São Paulo (USP). Pirassununga , SP, Brazil


Ora-pro-nobis (Pereskia aculeata Miller) is a cactus found in Brazil, from Bahia to Rio Grande do Sul. This is a specie with high protein content (highly digestible) and minerals (iron, manganese, calcium, etc.), mucilage type fibers and absence of leaves toxicity, which can be an important source for human and animal consumption. Compounds such as arabinogalactans and galactomannans, were identified making it with potential application in association with Fe (III) ions and other metals. The purpose of this study is to determine the best conditions of time, temperature and solvent ratio / raw material to obtain an extract rich in iron, using dried leaves of Ora-pro-nobis. The first step will consist in the characterization of the raw material (Ora-pro-nobis) determining the centesimal composition (dry matter, protein, lipids, crude fiber and ash) and minerals (calcium, magnesium, potassium, sulfur, phosphorus, manganese zinc, iron, boron and copper). The second step will be to study different temperatures and time of extraction using an experimental design of two variables, to obtain the Ora-pro-nobis extract. If necessary, it can be evaluate different ratios of solvent/mass of raw material. From these results, the extract, rich in iron, will be used in the preparation of a system using particles from the ionic and electrostatic interaction existing between two natural and biodegradable polymers: chitosan and pectin.

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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)
VINICIUS BORGES VIEIRA MACIEL; RENATA QUEIROZ BEZERRA; EDUARDO GALVÃO LEITE DAS CHAGAS; CRISTIANA MARIA PEDROSO YOSHIDA; ROSEMARY APARECIDA DE CARVALHO. Ora-pro-nobis (Pereskia aculeata Miller): uma fonte potencial de ferro e compostos fitoquímicos. Brazilian Journal of Food Technology, v. 24, . (16/03957-2, 15/07872-9)

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