Data/hora: 07/06/2024 13:29:09

Biblioteca(s): 	Embrapa Semiárido.	
Data corrente: 	17/10/2012	
Data da última atualização: 	13/06/2023	
Autoria: 	BIZZOTTO, C. S.; MEINHART, A. D.; RYBKA, A. C. P.; ROBERTO SOBRINHO, M.; BOGUSZ JUNIOR, S.; BALLUS, C. A.; GODOY, H. T.	
Afiliação: 	CAROLINA SCHAPER BIZZOTTO; ADRIANA DILLENBURG MEINHART; ANA CECILIA POLONI RYBKA, CPATSA; MERENICE ROBERTO SOBRINHO; STANISLAU BOGUSZ JUNIOR; CRISTIANO AUGUSTO BALLUS; HELENA TEIXEIRA GODOY.	
Título: 	Quantification of phenolic compounds by capillary zone electrophoresis in extracts of four commercial types of mate herb before and after acid hydrolysis.	
Ano de publicação: 	2012	
Fonte/Imprenta: 	Food Research International, v. 48, p. 763-768, 2012.	
Idioma: 	Português	
Conteúdo: 	Mate herb, Ilex paraguariensis St. Hil., is a plant cultivated in South America. Studies have evidenced the presence of phenolic compounds in mate herb, however, there are no reports on the contents of these compounds in different types of mate herb sold in the South Region of Brazil. In this study, capillary zone electrophoresis was used to quantify phenolic compounds in three lots of each of four types of commercial mate herb (traditional, native, large ground, and suave). Analysis was performed before and after acid hydrolysis. Hydro- lysis time, temperature and chloridric acid concentration were optimized by central composite design to maximize the amounts of free phenolic compounds obtained after hydrolysis. Before hydrolysis, high amounts of rutin were detected, while after hydrolysis, high amounts of caffeic acid and 3,4-dihydroxybenzoic acid were obtained, giving evidence that mate herb should be further investigated as a major source of these compounds	
Palavras-Chave: 	Ácido 3 4-dihidroxibenzoico; Ácido cafeico; Erva-mate; Otimização.	
Thesagro: 	Composto Fenólico; Hidrolise; Ilex Paraguariensis.	
Thesaurus Nal: 	Caffeic acid; Hydrolysis; Natural resources; Rutin.	
Categoria do assunto: 	P Recursos Naturais, Ciências Ambientais e da Terra	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/68193/1/Artigo-Ana-Cecilia-2012.pdf	
Registro original: 	Embrapa Semiárido (CPATSA)	
Exemplares: 	CPATSA - (48741-1) - UPC - AP - DD -  -  -  - DIS