Publications by authors named "Itala M G Marx"

Olive oil, a fundamental component of the Mediterranean diet, is recognized as a functional food due to its health-promoting composition. The concentration of phenolic compounds in olive oil is influenced by various factors such as genetics, agro-climatic conditions, and technological processes. Therefore, to ensure an ideal intake of phenolics through the diet, it is recommended to produce functional enriched olive oil that contains a high concentration of bioactive compounds.

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Designing oral formulations for children is very challenging, especially considering their peculiarities and preferences. The choice of excipients, dosing volume and palatability are key issues of pediatric oral liquid medicines. The purpose of the present study is to develop an oral pediatric solution of a model bitter drug (ranitidine) following a patient centric design process which includes the definition of a target product profile (TPP).

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At olive oil industrial extraction, water addition is a practice overcoming the formation of thick pastes. The effect of water addition (0 to 6.2%, kg/kg), during the industrial milling of cv.

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Leaves incorporation during the extraction of olive oils can enhance their chemical-sensory quality. Thus, leaves from cvs. Arbequina or Santulhana were added (1%, w/w) during the extraction of Arbequina oils using an Abencor system, being discussed the impacts on the phenolics and volatiles formation enzymatic pathways.

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Article Synopsis
  • An electronic nose equipped with nine metal oxide sensors was developed to classify olive oils based on their fruity intensity, categorizing them into specific groups laid out by European regulations.
  • The device demonstrated the ability to distinguish between various chemical solutions that represented both positive and negative sensory attributes, as well as classify these based on their concentrations.
  • Using advanced statistical models, the E-nose effectively identified different levels of fruitiness in extra virgin olive oils, indicating its potential as a reliable tool for verifying olive oil labeling without damaging the product.
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Phenolic compounds contribute to the bioactive properties of olive oil. However, olive oils can only support a health claim concerning the protection against oxidative stress depending on the polyphenolic concentration, requiring effective measures during extraction to preserve/enhance their concentrations. The effect of the malaxation temperature (22, 28 and 34 °C) on the phenolic profile was studied for industrially extracted cv.

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The identification of more than three perfumes is difficult and no analytical tool can completely replace the human olfactory system for fragrance classification. Indeed, no analytical system can mimic the human fragrance perception, being the recognition of perfume aroma patterns by conventional or sensor-based analytical tools a challenging task. For the perfume sector, the possibility of applying fast, cost-effective and green analytical devices for perfume analysis would represent a huge economic revenue.

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Article Synopsis
  • Olive oil's quality can vary significantly, requiring various analytical methods like titration and chromatography for assessment, which can be costly and time-consuming.
  • A study demonstrated the efficacy of a potentiometric electronic tongue combined with chemometric tools to quickly predict key quality indicators of olive oils.
  • The electronic tongue achieved comparable accuracy to traditional methods, showing its potential for rapid, simultaneous chemical and sensory evaluations of olive oil.
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