Olive and echium oil gelled emulsions: Simulated effect of processing temperature, gelling agent and in vitro gastrointestinal digestion on oxidation and bioactive compounds

• Tipo: Artigo em Revista Científica Internacional
• Data: 2023

Autores

Gutierrez-Luna, K (Autor) Outra; Ansorena, D (Autor) Outra; Cruz, R (Autor) Outra; Astiasaran, I (Autor) Outra; Susana Casal (Autor) FFUP

Revista

Título: Food Chemistry

Vol. 402

ISSN: 0308-8146

Editora: Elsevier

Indexação

ISI Web of Knowledge - 0 Citações

Scopus

Outras Informações

ID Authenticus: P-00X-CXR

DOI: 10.1016/j.foodchem.2022.134416

Abstract (EN): The impact and relative relevance of in vitro gastrointestinal digestion, processing temperature (room temper-ature or 180 degrees C), and gelling agent (GA) (carrageenan and alginate) on the bioactive compounds and oxidation status of olive and echium oils gelled formulations with 40% lipid incorporation was assessed. In vitro digestion was not affected by the GA, with >90% lipolysis in all formulations, but was the most relevant variable, pro-moting oxidation (MDA) regardless of the oil type, GA or temperature applied. Tocopherols and phenolic decreased with digestion, which could be interpreted as a protective response to pro-oxidative conditions during digestion. Temperature decreased olive oil phenolics. Gelification of echium oil using alginate reduced secondary oxidation products formation in comparison with carrageenan, with oxidation degrees after digestion equivalent to those shown with olive oil. The use of alginate with olive oil resulted in the most stable formulations, although not protecting its minor bioactive compounds from thermal degradation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9