Abstract
The present work aimed to formulate an artisanal hamburger using alpaca (Vicugna pacos) meat and essential oils from rosemary (Rosmarinus officinalis) and parsley (Petroselinum crispum) at concentrations of 0.5% and 1.0%. For this, essential oils were extracted. Microbiological analysis for Escherichia coli, Salmonella sp., and Staphylococcus was carried out for seven days. In addition, sensory attributes (color, odor, flavor, and texture) were characterized by 30 untrained panelists (university students). Essential yield oils of 0.734% were obtained for each essential oil. After seven days of monitoring, the hamburgers did not show the presence of microbiological parameters. Significant (p < 0.001) differences for concentrations and attributes were observed. However, essential oil of parsley at 0.5% presented higher scores of odors, taste, and texture than rosemary. It was concluded that our methodology allowed us to improve the product's shelf life, antimicrobial effect, and acceptability, guaranteeing good quality and nutritious products.
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