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University of Massachusetts Amherst

Theses/Dissertations

2019

Lipid oxidation

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Full-Text Articles in Life Sciences

Application Of Flow Cytometry As Novel Technology In Studying Lipid Oxidation In Oil-In-Water Emulsions, Peilong Li Oct 2019

Application Of Flow Cytometry As Novel Technology In Studying Lipid Oxidation In Oil-In-Water Emulsions, Peilong Li

Masters Theses

The body of literature on the impact of emulsion particle size on oxidation rates is unclear. This could be because emulsions are typically polydisperse and the oxidation rate of individual droplets is impossible to discern. Flow cytometry is a technique for studying individual cells and their subpopulations using fluorescence technologies. It is possible that individual emulsion droplets could also be characterized by flow cytometry as a novel approach for studying lipid oxidation. Typical emulsion droplets are too small to be visualized by flow cytometer, so emulsions were prepared to have droplets > 2 μm; weighting agent and xanthan gum were added …


Strategies To Increase Lipid Oxidative Stability Of A Low Moisture Cracker System, Thanh Vu Mar 2019

Strategies To Increase Lipid Oxidative Stability Of A Low Moisture Cracker System, Thanh Vu

Doctoral Dissertations

The first study focuses on impact of solid fat content (SFC) on lipid oxidation and micro-structure of low moisture crackers. A series of fats were formulated to have varying SFC but the same linoleic acid (18:2) and tocopherol compositions so the fats had similar susceptibility to oxidation. A comparison of the oxidative stability of interesterified soybean oil and a blend of fully hydrogenated soybean fat and soybean oil, the interesterified fat (13.7% SFC at 55 oC) resulted in a more oxidatively stable cracker than the fat blend (17.4% SFC at 55 oC). Similarly in crackers were made from …