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A comprehensive characterization of polyphenols from new peanuts adapted to drought by high resolution mass spectrometry (LC-ESI-LTQ-Orbitrap-MS)

Grant number: 16/16193-0
Support type:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): October 24, 2016
Effective date (End): April 23, 2017
Field of knowledge:Agronomical Sciences - Food Science and Technology - Food Science
Principal researcher:Severino Matias de Alencar
Grantee:Fernanda Francetto Juliano
Supervisor abroad: Rosa Maria Lamuela-Raventos
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
Research place: Universitat de Barcelona (UB), Spain  
Associated to the scholarship:15/02986-6 - Potential antioxidant and chemical composition of peanut cultivars adapted to semiarid environments, BP.MS

Abstract

Peanut (Arachis hypogaea L.) is a highly appreciated legum around the world and it has high economic importance. It is grown in over 100 countries and it is the fourth most produced oilseed in the world. It is one of the most complete foods in a nutritional aspect, and it may be considered a functional food if consumed in appropriate portions not only owing its content of oil, protein and carbohydrate, but also because it has high nutritional value given by the presence of vitamin E, niacin, calcium, phosphorus, magnesium, zinc, iron, riboflavin, thiamine and potassium. It also is a source of phenolic compounds such as stilbenes, flavonoids and phenolic acids, as well as tocopherols, all known to have antioxidant activity. In Brazil, and in order to meet the demand of growers located in the northeastern backlands, most populous semi-arid region of the world, Embrapa established a peanut breeding program, focusing on developing of early cultivars, productive and adapted to drought. Thus, the aim of this study is to identify the full range of polyphenols found in peanuts cultivars tolerant and sensitive to water stress developed by Embrapa, in Brazil, by high resolution mass spectrometry (LC-ESI-LTQ-Orbitrap-MS). In addition, it will be applied to the data matrix a Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) in order to identify the phenolic compounds correlated with water stress resistance. (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)
JULIANO, FERNANDA FRANCETTO; MASSARIOLI, ADNA PRADO; LAMUELA-RAVENTOS, ROSA MARIA; DE ALVARENGA, JOSE FERNANDO RINALDI; DE LIMA, LIZIANE MARIA; DOS SANTOS, ROSEANE CAVALCANTI; DA SILVA, CAMILA FURTUNATO; DE ALENCAR, SEVERINO MATIAS. Do drought-adapted peanut genotypes have different bioactive compounds and ROS-scavenging activity?. EUROPEAN FOOD RESEARCH AND TECHNOLOGY, v. 247, n. 6, . (15/02986-6, 16/16193-0, 19/11324-8, 16/06514-4, 13/07914-8)
JULIANO, FERNANDA F.; ALVARENGA, JOSE FERNANDO R.; LAMUELA-RAVENTOS, ROSA MARIA; MASSARIOLI, ADNA P.; LIMA, LIZIANE M.; SANTOS, ROSEANE C.; ALENCAR, SEVERINO M.. Polyphenol analysis using high-resolution mass spectrometry allows differentiation of drought tolerant peanut genotypes. Journal of the Science of Food and Agriculture, v. 100, n. 2, . (15/02986-6, 16/16193-0, 16/06514-4)

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