Data/hora: 16/06/2024 07:26:08

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	16/09/2016	
Data da última atualização: 	16/09/2016	
Autoria: 	LEITE, C. E. C.; PORCU, O. M.; SCHALLENBERGER, E.; MORALES, R. G. F.	
Título: 	New sweet potato cultivars: color profile and vitamin C content.	
Ano de publicação: 	2016	
Fonte/Imprenta: 	In: WORLD CONGRESS OF FOOD SCIENCE & TECHNOLOGY BOOK OF PROCEEDINGS, 18., 2016, Dublim, Irlanda. Proceedings... Dublim, Irlanda: Institute of Food Science & Technology of Ireland (IFSTI), 2016.	
Idioma: 	Inglês	
Conteúdo: 	New cultivars of sweet potatoes were developed through search of cultivars selection in partnership with rural producers collaborators of EPAGRI ? Estação Experimental de Itajaí in Santa Catarina, Brazil, seeking good nutrition and productive performance. This way it is possible to increase the rural producer interest in planting the culture, thus elevating the commercial availability of sweet potato. The objective of this study was to evaluate the coordinates of color and content of vitamin C in new sweet potato cultivars. Using Minolta colorimeter Chroma Meter-CR300, illuminating source D65 and following examination by the system (CIELAB) the coordinates were determined: L*, a*, b*, chroma (Cab*) and &#7506;Hue (h*ab). Vitamin C was determined by the method of potassium iodide and iodate, described by Instituto Adolfo Lutz. Four cultivars (Luiza, Katy, Beauregard and, Marina) were characterized as the luminosity (L*=28.76 ± 0.44, 81.22 ± 0.51, 66.58 ± 0.48 and 74.23 ± 0.43, respectively), Chromaticity a* (27.48 ± 0.63, 2.04 ± 0.07, 23.48 ± 0.56 and 2.66 ± 0,46, respectively) and b* (0.80 ± 0.68, 24.17± 0.72, 34.33 ± 0.67 and 35.64 ± 0.72, respectively), and vitamin C (71.57 ± 1.44, 30.25 ± 1.31, 17.12 ± 1.02 and 16.69 ± 0.88 %, respectively). The cv. Luiza presented the biggest content of vitamin C and the color profile was significantly different among cultivars.	
Palavras-Chave: 	chromaticity; colorimeter; Ipomoea batatas; luminosity.	
Categoria do assunto: 	Q Alimentos e Nutrição Humana	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_38282.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
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