Changes in Vitamin C, Phenolic, and Carotenoid Profiles Throughout in Vitro Gastrointestinal Digestion of a Blended Fruit Juice

2013 ◽  
Vol 61 (8) ◽  
pp. 1859-1867 ◽  
Author(s):  
María Janeth Rodríguez-Roque ◽  
María Alejandra Rojas-Graü ◽  
Pedro Elez-Martínez ◽  
Olga Martín-Belloso
Keyword(s):  
Vitamin C ◽  
Fruit Juice ◽  
Gastrointestinal Digestion ◽  
In Vitro Gastrointestinal Digestion

Correction to Changes in Vitamin C, Phenolic, and Carotenoid Profiles Throughout in Vitro Gastrointestinal Digestion of a Blended Fruit Juice

2013 ◽  
Vol 61 (13) ◽  
pp. 3350-3350
Author(s):  
María Janeth Rodríguez-Roque ◽  
María Alejandra Rojas-Graü ◽  
Pedro Elez-Martínez ◽  
Olga Martín-Belloso
Keyword(s):  
Vitamin C ◽  
Fruit Juice ◽  
Gastrointestinal Digestion ◽  
In Vitro Gastrointestinal Digestion

scholarly journals Different Effects of Vitamin C-Based Supplements on the Advance of Linseed Oil Component Oxidation and Lipolysis during In Vitro Gastrointestinal Digestion

Foods ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 58
Author(s):  
Bárbara Nieva-Echevarría ◽  
Encarnación Goicoechea ◽  
Patricia Sopelana ◽  
María D. Guillén
Keyword(s):  
Ascorbic Acid ◽  
Vitamin C ◽  
Lipid Oxidation ◽  
Dietary Supplements ◽  
Linseed Oil ◽  
Ascorbyl Palmitate ◽  
Gastrointestinal Digestion ◽  
Gamma Tocopherol ◽  
In Vitro Gastrointestinal Digestion

Although widely consumed, dietary supplements based on Vitamin C contain high doses of this compound, whose impact on lipid oxidation during digestion needs to be addressed. Therefore, the effect of seven commercial supplements and of pure l-ascorbic acid and ascorbyl palmitate on linseed oil during in vitro gastrointestinal digestion was tackled. The advance of lipid oxidation was studied through the generation of oxidation compounds, the degradation of polyunsaturated fatty acyl chains and of gamma-tocopherol, by employing Proton Nuclear Magnetic Resonance. Supplements containing exclusively l-ascorbic acid enhanced the advance of linseed oil oxidation during digestion. This was evidenced by increased formation of linolenic-derived conjugated hydroxy-dienes and alkanals and by the generation of conjugated keto-dienes and reactive alpha,beta-unsaturated aldehydes, such as 4,5-epoxy-2-alkenals; moreover, gamma-tocopherol was completely degraded. Conversely, supplements composed of mixtures of ascorbic acid/salt with citric acid and carotenes, and of ascorbyl palmitate, protected linseed oil against oxidation and reduced gamma-tocopherol degradation. The study through Solid Phase Microextraction-Gas Chromatography/Mass Spectrometry of the volatile compounds of the digests corroborated these findings. Furthermore, a decreased lipid bioaccessibility was noticed in the presence of the highest dose of l-ascorbic acid. Both the chemical form of Vitamin C and the presence of other ingredients in dietary supplements have shown to be of great relevance regarding oxidation and hydrolysis reactions occurring during lipid digestion.

In Vitro Gastrointestinal Digestion Study of Broccoli Inflorescence Phenolic Compounds, Glucosinolates, and Vitamin C

2004 ◽  
Vol 52 (1) ◽  
pp. 135-138 ◽  
Author(s):  
Fernando Vallejo ◽  
Angel Gil-Izquierdo ◽  
Antonio Pérez-Vicente ◽  
Cristina García-Viguera
Keyword(s):  
Phenolic Compounds ◽  
Vitamin C ◽  
Gastrointestinal Digestion ◽  
In Vitro Gastrointestinal Digestion
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