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Theses/Dissertations

2013

Graduate Theses and Dissertations

Resistant starch

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Full-Text Articles in Life Sciences

Evaluating The Use Of Resistant Starch As A Beneficial Dietary Fiber And Its Effect On Physiological Response Of Glucose, Insulin, And Fermentation, Esther Haugabrooks Jan 2013

Evaluating The Use Of Resistant Starch As A Beneficial Dietary Fiber And Its Effect On Physiological Response Of Glucose, Insulin, And Fermentation, Esther Haugabrooks

Graduate Theses and Dissertations

Resistant starches (RS) are complex partly indigestible carbohydrates that have shown promise in improving digestive health, lowering postprandial blood glucose (PPG) and insulin (PPI) concentrations among other beneficial health effects. There are four types of RS and a fifth type is emerging; although there is very little experimental data on the physiological responses of RS type V. Three experiments were constructed to test the overarching hypothesis that RS (type II and V) can favorably impact human physiological responses of PPG, PPI, and microbial fermentation in the colon with minimal gastrointestinal distress. Two of the three experiments were randomized blind crossover ...


Effect Of Dietary Resistant Starch On Inhibition Of Preneoplasia In Azoxymethane-Induced Rodent Models, Bridget Nelson Jan 2013

Effect Of Dietary Resistant Starch On Inhibition Of Preneoplasia In Azoxymethane-Induced Rodent Models, Bridget Nelson

Graduate Theses and Dissertations

Diet choices can play a role in disease incidence, especially diseases associated with the digestive system, such as Irritable Bowel Syndrome, Crohn's disease, and colorectal cancer. Starch is a large component of the the human diet and the non-digestible portion, referred to as dietary fiber, has been implicated as a factor that decreases the risk for colorectal cancer. Modified or naturally occurring resistant starches share similar digestion resistant properties as dietary fiber and may produce similar protective effects. Two different animal models, F344 rats and A/J mice, were used to compare preneoplasia inhibition when fed one of three ...


Structures, Properties, And Digestibility Of Resistant Starch, Yongfeng Ai Jan 2013

Structures, Properties, And Digestibility Of Resistant Starch, Yongfeng Ai

Graduate Theses and Dissertations

This study aimed to understand effects of different treatments and modifications on the structures, properties, and digestibility of selected starches. Different lipids, including corn oil (CO), soy lecithin (SL), palmitic acid (PA), stearic acid (SA), oleic acid (OA) and linoleic acid (LA), were selected for the study, and their impacts on the properties and digestibility of normal corn (NCS), tapioca (TPS), waxy corn (WCS) and high-amylose corn (HA7) starch were investigated to elucidate mechanisms of starch-lipid interactions. After cooking with the lipids (10%, w/w, dsb), NCS, TPS and HA7 showed significant decreases in the percentage enzymatic hydrolysis, and their ...