Effect of lyophilized water extracts of Melissa officinalis on the stability of algae and linseed oil-in-water emulsion to be used as a functional ingredient in meat products
2010
de Ciriano, Mikel García-Iñiguez | Rehecho, Sheyla | Calvo, Maria Isabel | Cavero, Rita Yolanda | Navarro, Íñigo | Astiasarán, Iciar | Ansorena, Diana
Previous work pointed out the possibility to enhance the nutritional value of meat products using long chain ω −3 PUFA enriched emulsions. Oil-in-water emulsions elaborated with a mixture of algae and linseed oils (15:10) in order to be used as functional ingredient were stabilized with BHA (butylhydroxyanisol) or with a lyophilized water extract of Melissa officinalis L. (Lemon balm). The lipid profile of the oil mixture showed a high amount of DHA (31.7%), oleic (25.4%) and α-linolenic acid (12.7%) resulting in a very low ω −6/ω −3 ratio (0.12). The lyophilized extract of M. officinalis showed a high antioxidant activity (being 62ppm of the lyophilized water extract of Melissa equivalent to 200ppm of BHA, using the DPPH assay as reference), and high total phenolic content. Studying the oxidation process in the emulsions during 15days at room temperature, it could be concluded that this extract was as efficient as BHA in order to control the thiobarbituric acid reactive substances (TBARS) formation.
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