Data/hora: 20/09/2024 22:32:37

Biblioteca(s): 	Embrapa Algodão.	
Data corrente: 	14/03/2023	
Data da última atualização: 	14/03/2023	
Autoria: 	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.	
Afiliação: 	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.	
Título: 	Optimizing procedures for antioxidant phenolics extraction from skin and kernel of peanuts with contrasting levels of drought tolerance.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	Foods, v. 11, n. 3, 449, p. 2-14, 2022.	
ISSN: 	2304-8158	
DOI: 	https://doi.org/10.3390/foods11030449	
Idioma: 	Inglês	
Conteúdo: 	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.	
Palavras-Chave: 	Espécies reagentes ao oxigênio; Estresse hídrico; Flavonóides; Groundnut; Metodologia; Superfície de resposta.	
Thesagro: 	Amendoim.	
Thesaurus Nal: 	Flavonoids; Reactive oxygen species; Response surface methodology; Water stress.	
Categoria do assunto: 	Q Alimentos e Nutrição Humana	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1152353/1/OPTIMIZING-PROCEDURES-ANTIOXIDANT-9.pdf	
Registro original: 	Embrapa Algodão (CNPA)	
Exemplares: 	CNPA - (29018-1) - UPC - AP - DD -  -  -  - DIS