Lipid oxidation is the main hurdle for omega-3 fatty acid enrichment in food and beverages. Fat oxidation reduces the quality and safety of supplemented products. A tuna oil-in-water emulsion (20%v/v) was exposed to iron-induced oxidation. Emulsions with changing emulsifiers and buffers were analyzed under different storage conditions (argon purging, pH variation) using Conjugated Dienes and Thiobarbituric acid reactive substances assays. The results showed that free iron ions cannot interact with oxygen. However, buffers (Citrate and phosphate) chelate iron ions (Fe (II)). Depending on the pH value and the type of buffer-Fe (II) complex, its prooxidant activity and spatial distribution are influenced. The complex charge defines the interactions with the oil-water interface, i.e., positively charged interfaces repel positively charged complexes which keeps the prooxidant away. The mechanistic understanding of this work will help formulators and product developers to choose the right buffer and emulsifier combination for oxidation sensitive emulsions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.foodchem.2020.128273 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
BIOCHEMICAL MARKERS OF MISCARRIAGE ASSOCIATED WITH THE INTRAPLACENTAL ACCUMULATION OF 137Cs.
Probl Radiac Med Radiobiol
December 2024
State Institution «Ukrainian Сenter of Maternity and Childhood of the National Аcademy of Мedical Sciences of Ukraine», 8 Platona Mayborody Str., Kyiv, 04050, Ukraine.
Unlabelled: The impact of the environment on human health in modern conditions cannot be underestimated. The study of thepathogenesis of disease is impossible without establishing the factors of destabilization of biological membranes.The article highlighted the problem of lipid peroxidation and antioxidant defense associated with the accumulationof radiocesium in the placenta.
View Article and Find Full Text PDFTrans-2-hexenal reduces postharvest mango stem-end rot by oxidative damage to Neofusicoccum parvum cell membranes.
World J Microbiol Biotechnol
December 2024
School of Chemical Engineering, Xiangtan University, Xiangtan, 411105, China.
Neofusicoccum parvum is one of the most hazardous pathogens causing mango fruit decay. The present study utilized trans-2-hexenal (TH), a typical antifungal component of plant essential oils (EOs), to control N. parvum both in vivo and in vitro, and attempted to explore the mechanisms involved.
View Article and Find Full Text PDFRational Development of a Lipid Droplets and Hypochlorous Acid In-Sequence Responsive Fluorescent Probe for Accurate Imaging of Atherosclerotic Plaques.
Anal Chem
December 2024
Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China.
To answer the call for effective and timely intervention in cardiovascular diseases (CVDs), the development of fluorescent probes that can precisely identify atherosclerotic plaques, the root cause of various fatal CVDs, is highly desirable but remains a great challenge. Herein, by integrating bis(trifluoromethyl)benzyl and phenothiazine into the coumarin matrix, a robust fluorescent probe, NOR1, has been developed. NOR1 responds sequentially to lipid droplets (LDs) and HClO via fluorescence turn-on and ratiometric readouts, respectively, with a fast response rate (within 70 s for LDs and 80 s for HClO), excellent sensitivity (detection limit: 0.
View Article and Find Full Text PDFOlive and Linseed Oil Blend-Based Nanoemulsions Fortified With Ginger Extract Nutraceutical: Mitigating Liver Fibrosis Induced by Carbon Tetrachloride by Regulating Oxidative Stress and TGF-β/MMP9 Signaling Pathway in Rats.
Mol Nutr Food Res
December 2024
Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
Liver fibrosis is a significant contributor to global morbidity and mortality, making the identification of non-toxic natural therapies to slow its progression essential. This study evaluated the anti-fibrotic potential of a nutraceutical blend comprising extra virgin olive oil, linseed oil, and ginger extract, formulated in both emulsion and nanoemulsion forms, using a rat model of liver fibrosis. Nanoemulsions were prepared using the ultrasonication technique, and their particle size and stability were analyzed via the DLS method.
View Article and Find Full Text PDFEffects of Hydrolysed Poultry Byproduct Meal on Metabolic, Inflammatory and Oxidative Parameters in Cats.
J Anim Physiol Anim Nutr (Berl)
December 2024
Department of Veterinary Clinic and Surgery, School of Agricultural and Veterinary Sciences (FCAV), São Paulo State University-UNESP, Jaboticabal, Brazil.
Hydrolysed proteins are of interest owing to their potential effects on metabolic and physiological responses, low allergenicity and high digestibility. This study aimed to evaluate the use of hydrolysed poultry byproduct meal (HPM) as a replacement for conventional poultry byproduct meal (PBM) as a protein source and to study its effects on serum cytokines, angiotensin-converting enzyme (ACE) activity, serum antioxidant parameters, blood pressure, and urinary parameters in cats. The replacement of PBM with HPM was evaluated using five formulations with similar chemical compositions: control (PBM as the sole protein source) and the inclusion of 5%, 10%, 20%, and 30% HPM (on an as-fed basis).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!