Assessment and degradation study of total carotenoid and ß-carotene in bitter yellow cassava (Manihot esculenta Crantz) varieties.

AUTOR(ES)

OLIVEIRA, R. G. A.

FONTE

African Journal of Food Science

DATA DE PUBLICAÇÃO

2011

RESUMO

The assessment of the variability of total carotenoid, ß-carotene, all-E, and 13 and 9-Z-ß-carotene isomers in twelve bitter yellow cassava was carried out, as well its degradation in five varieties after flour processing and during storage. HPLC and UV/ visible spectrophotometry were used in sample analyses. Varieties of bitter yellow cassava presented variation in the total carotenoid contents from 1.97 - 16.33 ?g/ bg and the ß-carotene contents varied from 1.37 - 7.66?g/ g. The 13, 9-Z and all-E-ß-carotene isomers were found in all varieties, being all-E-ß-carotene the predominant one. The mean degradation among the roots after processing was of 50%. Total carotenoid complete degradation was observed with less than 30 storage days. It was also observed that the total carotenoid contents in yellow bitter cassava roots varied, probably due to the characteristics of the used varieties. Heat during processing, light and oxygen might have been the agents that most contributed to flour total carotenoids degradation.

ASSUNTO(S)

mandioca beta-caroteno carotenoide farinha cassava carotenoids beta-carotene

Documentos Relacionados

• Cytogenetics and evolution of cassava (Manihot esculenta Crantz)
• Productive potential of cassava plants (Manihot esculenta Crantz) propagated by leaf buds
• A leaf bud technique for rapid propagation of cassava (Manihot esculenta Crantz)
• Avaliação nutricional da farinha de varredura de mandioca (Manihot esculenta Crantz) para frangos de corte.
• ISOLAMENTO, IDENTIFICAÇÃO E CARACTERIZAÇÃO DE LINHAGENS ENDOFÍTICAS DE Bacillus thuringiensis DE MANDIOCA (Manihot esculenta Crantz)