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

Vanessa Vivian de Almeida, Elton Guntendorfer Bonafé, Edvani Curti Muniz, Makoto Matsushita, Nilson Evelázio de Souza, Jesuí Vergílio Visentainer
2009 Química Nova  
Recebido em 30/7/08; aceito em 9/12/08; publicado na web em 30/4/09 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 °C, respectively. The fatty acids (FA) were investigated using gas chromatography equipped with a flame ionization detector and fused
more » ... ctor and fused silica capillary column; FA were identified with standards and based on equivalent-chain-length. LNA and other FA were quantified against C 21:0 internal standard. After dehydration, the amount of LNA, quantified in mg/100 g dry matter of dehydrated carrot leaves, were 984 mg.
doi:10.1590/s0100-40422009000500042 fatcat:5i7yh35ivfc3tf6x75tq2c3tya