Salicórnia: o "sal verde" amigo do coração: aplicação prática em sopas

Research output: Types of ThesisMaster's Thesis

Abstract

Salicornia is classified as a halophyte plant, which develops in environments with high salinity. In ancient times it was known as the invasive plant of salt or even as a "plague", since there was a competition with water in the presence of this plant and thus was not produced amounts of sustainably salt. Nowadays, it is beginning to value this plant for its organoleptic and sensorial characteristics, but also begins to be identified as an alternative to the use of salt, denominated by "green salt". Main objective of the work carried out during the internship was to develop a "functional product", with beneficial properties for the organism, using the incorporation of salicornia in soups, as an alternative to the use of salt. The physicochemical properties of salicornia will also be evaluated, as well as the performance of a sensorial analysis to the final product, to confirm its acceptance. The maintenance of the price in these products, as well as the increase of the nutritional quality of the product are other objectives to achieve. The internship was part of the Department of Direction of Quality and Investigation in Sonae MC, located in the warehouse of Maia, more concretely in the zone of reception of merchandise at controlled temperature. Observing the values obtaines it is possible to reduce the sodium content in the soup by about 55.6% and to be sensorially accepted by the final consumer in two distinct panels with a concentration of 2.5% fresh salicornia and 2.5% salicornia powder. Different concentrations of salicornia were evaluated in two different matrices: cream of vegetables with watercress and cream of vegetables and apple. From the two sensorially evaluated matrices the best classification was achieved with the cream of vegetables and apple, so it is possible to deduce that the soup must have a specific matrix to reach positive values on the selected scale. Regarding the bibliographic values of the sodium content these are not significantly different from the practical values obtained (5g of salicornia equals approximately 57mg of sodium) so the theoretical values presented are confirmed and, therefore, it can be concluded that salicornia is a possibility for salt substitution.
Original languagePortuguese
QualificationMaster of Science
Awarding Institution
  • Universidade Católica Portuguesa
Supervisors/Advisors
  • Delgado, Mayumi Thaís Fernandes de, Supervisor, External person
Award date4 Jun 2019
Publication statusPublished - Feb 2019

Keywords

  • Salicornia
  • Salt
  • Soups
  • Salt substitute
  • Sensory analysis

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