Optimization of the carrot leaf dehydration aiming at the preservation of omega-3 fatty acids

AUTOR(ES)

Almeida, Vanessa Vivian de, Bonafé, Elton Guntendorfer, Muniz, Edvani Curti, Matsushita, Makoto, Souza, Nilson Evelázio de, Visentainer, Jesuí Vergílio

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2009

RESUMO

The carrot leaf dehydration conditions in air circulation oven were optimized through response surface methodology (RSM) for minimizing the degradation of polyunsaturated fatty acids, particularly alpha-linolenic (LNA, 18:3n-3). The optimized leaf drying time and temperature were 43 h and 70 ºC, respectively. The fatty acids (FA) were investigated using gas chromatography equipped with a flame ionization detector and fused silica capillary column; FA were identified with standards and based on equivalent-chain-length. LNA and other FA were quantified against C21:0 internal standard. After dehydration, the amount of LNA, quantified in mg/100 g dry matter of dehydrated carrot leaves, were 984 mg.

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