Data/hora: 22/09/2024 19:17:02

Biblioteca(s): 	Embrapa Agroindústria de Alimentos; Embrapa Milho e Sorgo.	
Data corrente: 	20/10/2014	
Data da última atualização: 	27/09/2017	
Autoria: 	CARDOSO, L. de M.; PINHEIRO, S. S.; SILVA, L. L. da; MENEZES, C. B. de; CARVALHO, C. W. P. de; TARDIN, F. D.; QUEIROZ, V. A. V.; MARTINO, H. S. D.; PINHEIRO-SANT'ANA, H. M.	
Afiliação: 	CICERO BESERRA DE MENEZES, CNPMS; FLAVIO DESSAUNE TARDIN, CNPMS; VALERIA APARECIDA VIEIRA QUEIROZ, CNPMS.	
Título: 	Tocochromanols and carotenoids in sorghum (Sorghum bicolor L.): diversity and stability to the heat treatment.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	Food Chemistry, London, v. 172, p. 900-908, 2015.	
DOI: 	10.1016/j.foodchem.2014.09.117	
Idioma: 	Inglês	
Conteúdo: 	The content and stability (retention) to dry heat in a conventional oven (DHCO) and extrusion of toco-chromanols and carotenoids in sorghum genotypes were evaluated. One hundred sorghum genotypes showed high variability in tocochromanol content (280.7–2962.4lg/100 g in wet basis) and 23% of the genotypes were classified as source of vitamin E. The total carotenoid varied from 2.12 to 85.46lg/100 g in one hundred sorghum genotypes. According to the genetic variability for carotenoids and toco-chromanols, the 100 genotypes were grouped into 7 groups. The retention of the total tocochromanols and a-tocopherol equivalent decreased after extrusion (69.1–84.8% and 52.4–85.0%, respectively) but increased after DHCO (106.8–114.7% and 109.9–115.8%, respectively). Sorghum carotenoids were sensitive to extrusion (30.7–37.1%) and DHCO (58.6–79.2%). In conclusion, the tocochromanols profile in sorghum varied widely and the genotypes presented high genetic variability for carotenoids and tocochromanols. Sorghum was a source of tocochromanols, which increased after DHCO and decreased after extrusion. The carotenoid content in sorghum decreased after DHCO and extrusion.	
Palavras-Chave: 	Carotenoid stability; Dry heat in a conventional oven; Sorghum bicolor L.	
Thesagro: 	Carotenoide; Extrusão; Sorghum bicolor; Vitamina E.	
Thesaurus Nal: 	extrusion; vitamin E.	
Categoria do assunto: 	--
X Pesquisa, Tecnologia e Engenharia	
Registro original: 	Embrapa Milho e Sorgo (CNPMS)	
Exemplares: 	CNPMS - (26200-1) - UPC - AP - DD -  -  -  - DIS
CTAA - (12792-1) - UPC - AP - DD -  -  -  - DIS