PurposeThis review aims to summarize some of the relevant methodologies used to study traditional foods evaluated from the consumers' perspective. The analysis provided in this review will shed light on the methods as a valuable tool to stimulate research in traditional to promote cultural and nutritional revaluation of these products.Design/methodology/approachA systematic literature review was performed on 60 articles related to the study of traditional foods from the consumer's perspective.FindingsTen methodologies were found that address the study of this product category. European countries lead the research in traditional foods while research in Latin America, Africa and Asia is still incipient.Practical implicationsThis review shows the potential of each method to be applied in the study of traditional foods as well as the positive implications that research about these products could bring to regions/countries with a great diversity of traditional products.Originality/valueThis review reveals the need to approach the study of traditional foods and encourage future research on them, which in turn, will contribute to the cultural and integral development of local communities, even to the recovery of ingredients and local raw materials.

Modelado de la biodegradación en biorreactores de lodos de hidrocarburos totales del petróleo intemperizados en suelos y sedimentos (Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments)

Odor is one of the most important attributes to determine the overall acceptance of a product. The aim of this investigation is to evaluate the changes in the odor profile and the volatile compounds during thirty-three days of ripening to obtain the pattern of volatile compounds necessary to integrate the odor profile of chorizo (fermented sausage), using Partial Least Squares (PLS). The chili and pork meat odors were predominant during the first five days, vinegar and fermented odors at days twelve and nineteen days, and finally a rancid odor predominated at the end. Only the vinegar, rancid, and fermented odors could be predicted with a good fit model, with the R2 coefficient above 0.5, using linear PLS, and the pork meat odor using logarithmic PLS. Each group of volatile compounds interacted in different ways; esters had a positive influence on the vinegar and rancid odors, but a negative on the fermented odor. Some volatile compounds contributed to more than one odor, such as hexanal, ethanol, and ethyl octanoate. This work allowed us to understand the pattern of volatile compounds required to generate some of the specific odors of chorizo; further studies are required to explore the effect of other food components on these patterns of odors.