Title:	Optimizing procedures for antioxidant phenolics extraction from skin and kernel of peanuts with contrasting levels of drought tolerance.
Authors:	MASSARIOLI, A. P. SARTORI, A. G. de O. JULIANO, F. F. SANTOS, R. C. dos RAMOS, J. P. C. LIMA, L. M. de L. ALENCAR, S. M. de
Affiliation:	ADNA P. MASSARIOLI, USP - ESALQ; ALAN G. DE O. SARTORI, USP - ESALQ; FERNANDA F. JULIANO, USP - ESALQ; ROSEANE C. DOS SANTOS, CNPA; JEAN PIERRE C. RAMOS; LIZIANE MARIA DE LIMA, CNPA; SEVERINO MATIAS DE ALENCAR, USP - ESALQ.
Date Issued:	2022
Citation:	Foods, v. 11, n. 3, 449, p. 2-14, 2022.
Description:	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 ºC and 35% EtOH for kernels and 40 ºC and 60% EtOH for skins, were further adopted, and phenolic compounds were identified and quantified using high-performance liquid chromatography coupled with electrospray ionizationquadrupole- 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.
Thesagro:	Amendoim
NAL Thesaurus:	Water stress Reactive oxygen species Flavonoids Response surface methodology
Keywords:	Groundnut Estresse hídrico Espécies reagentes ao oxigênio Flavonóides Metodologia Superfície de resposta
ISSN:	2304-8158
DOI:	https://doi.org/10.3390/foods11030449
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPA)