ptimizing Procedures for Antioxidant Phenolics Extraction from Skin and Kernel of Peanuts with Contrasting Levels of Drought Toleranc

Autor(es)

Massarioli, Adna P. ^[1] ; Sartori, Alan G. de O. ^[1] ; Juliano, Fernanda F. ^[1] ; dos Santos, Roseane C. ^[2] ; Ramos, Jean Pierre C. ^[2] ; de Lima, Liziane Maria ^[2] ; de Alencar, Severino Matias ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr, Dept Agrifood Ind Food & Nutr, BR-13418900 Piracicaba - Brazil

^[2] Brazilian Agr Res Corp Embrapa Algodao, BR-58428095 Campina Grande, Paraiba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FOODS; v. 11, n. 3 FEB 2022.
• Citações Web of Science: 0

Resumo

Peanut is an affordable legume known for its nutritional value and phenolic content. The kernel and skin of 14 peanut genotypes contrasting in drought tolerance had their phenolic profiles determined and reactive oxygen species (ROS) scavenging activity evaluated. Firstly, temperature and % EtOH to extract antioxidant phenolic compounds were optimized using response surface methodology (RSM). The optimized extraction conditions, 60 degrees C and 35% EtOH for kernels and 40 degrees C and 60% EtOH for skins, were further adopted, and phenolic compounds were identified and quantified using high-performance liquid chromatography coupled with electrospray ionization-quadrupole-time of flight-mass spectrometry (HPLC-ESI-QTOF-MS) and high-performance liquid chromatography with photodiode array detector (HPLC-PDA). As a result, phenolic acids and glycosidic/non-glycosidic flavonoids were found. Principal component analysis was conducted, and the pairwise score plot of the skin extracts based on individual phenolic compounds showed a trend of genotype clustering based not only on drought tolerance but also on botanical type of germplasm. Therefore, our results demonstrate the status quo for antioxidant phenolic compounds of peanut genotypes contrasting in drought tolerance grown under natural field conditions. (AU)

• Processo FAPESP: 16/06514-4 - Composição química e potencial de desativação de espécies reativas de oxigênio de novas cultivares de amendoim adaptadas a ambientes semiáridos: uma contribuição em conjunto com a Embrapa ao desenvolvimento econômico/social do Nordeste brasileiro
• Beneficiário: Severino Matias de Alencar
• Modalidade de apoio: Auxílio à Pesquisa - Regular