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Full-Text Articles in Life Sciences

Effect Of Processing On Microbiota Accessible Carbohydrates In Whole Grains, Caroline Smith Nov 2019

Effect Of Processing On Microbiota Accessible Carbohydrates In Whole Grains, Caroline Smith

Dissertations, Theses, & Student Research in Food Science and Technology

There is potential to increase microbiota accessible carbohydrates (MAC) in whole grains through food processing. Therefore, different processing conditions for boiling and extrusion of whole wheat flour were studied for their effect on MAC. Processing conditions had a minimal effect on fermentation response using 2 fecal samples of disparate composition. However, the processing method had an impact on the fermentation of non-digestible carbohydrates and subsequent short chain fatty acids production, but only for a microbiome with high diversity and a predominance of microbes associated with dietary fiber intake. Subsequently, five processing methods: boiling, extrusion, unleavened bread, yeast bread, and sourdough ...


A Comparative Analysis Of The Fermentation Capabilities Of Various Bifidobacterium Strains, Ella Oney Mar 2019

A Comparative Analysis Of The Fermentation Capabilities Of Various Bifidobacterium Strains, Ella Oney

Honors Theses, University of Nebraska-Lincoln

Bifidobacterium is a genus of anaerobic bacteria that are commonly found to inhabit the gastrointestinal tract of many members of the animal kingdom. These microorganisms are adapted to obtain their carbon from the breakdown of complex carbohydrates. Marmosets, a mammal whose gut microbiome is inhabited by high levels of Bifidobacteria, consume gum Arabic as a major part of their diet. The purpose of this experiment is to determine whether Bifidobacterium strains isolated from the guts of marmosets are able to degrade and ferment this complex carbohydrate or one of its main constituents, arabinose. This was accomplished by inoculating isolates of ...


Twin-Screw Extrusion Processing Of Plant-Based Blends Using Graded Levels Of High Protein Fermented Soybean Meal (Fsbm), Parisa Fallahi, Kurt A. Rosentrater, K. Muthukumarappan Jan 2019

Twin-Screw Extrusion Processing Of Plant-Based Blends Using Graded Levels Of High Protein Fermented Soybean Meal (Fsbm), Parisa Fallahi, Kurt A. Rosentrater, K. Muthukumarappan

Agricultural and Biosystems Engineering Publications

Fast-paced growth in global aquaculture has elevated concerns about the high costs of fish farming production and potential water pollution. Thus, finding eco-friendly and more sustainable alternative protein sources for fish diets is of vital importance to the industry. A twin-screw extrusion processing study was performed using three ingredient blends formulated with graded levels of high protein fermented soybean meal (FSBM) (0, 80% and 100% db fishmeal replacement) along with calculated amounts of other ingredients to meet the rainbow trout diets’ requirements. Increasing the FSBM content from 0% to 100% resulted in a substantial increase in brightness, greenness, and yellowness ...


Ethanol, W. J. Criddle, Jacek A. Koziel, J. (Hans) Van Leeuwen, William S. Jenks Jan 2019

Ethanol, W. J. Criddle, Jacek A. Koziel, J. (Hans) Van Leeuwen, William S. Jenks

Agricultural and Biosystems Engineering Publications

Ethanol (CH3CH2OH) is one of the most important individual organic compounds readily available all over the world. It has been described as one of the most versatile of compounds, being widely used as a solvent, a germicide, a beverage, an antifreeze, a fuel, and fuel additive, additive to paints, coatings, automotive care products and adhesives, a fragrance, a lubricant, and as an intermediate for the synthesis and production of other organic compounds. Ethanol is mainly produced through yeast fermentation of sugars from seeds, sugar cane or beets and concentrated through subsequent distillation. Its main use is as a liquid fuel ...


Genau, Charles (Fa1212), Manuscripts & Folklife Archives Oct 2018

Genau, Charles (Fa1212), Manuscripts & Folklife Archives

FA Finding Aids

Finding aid only for Folklife Archives Project 1212. Student paper titled “Winemaking: The Old and New Way” in which Charles Genau details the process of wine production from harvest, to fermentation, bottling, and distribution. Genau compares and contrasts methods of traditional winemaking with contemporary approaches. He also gathered his information from two winemakers of different ages and ethnic backgrounds. The paper contains two illustrations of the winemaking process.


The Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman Mar 2018

The Use Of Grape By-Products As A Nutrient Rich Cattle Feed, Zachary Christman

Theses, Dissertations, and Student Research in Agronomy and Horticulture

In this article you will learn about how to use the grape stems, skins and pulp that are generated by the wine industry. Ruminant animals such as cattle can digest this inexpensive yet nutrient rich material. The complete process from wine press to cattle feed is covered in this article. The historical background of using grape by-products and methods to preserve this food source is also presented.


Food-Derived Bioactive Peptides In Human Health: Challenges And Opportunities, Subhadeep Chakrabarti, Snigdha Guha, Kaustav Majumder Jan 2018

Food-Derived Bioactive Peptides In Human Health: Challenges And Opportunities, Subhadeep Chakrabarti, Snigdha Guha, Kaustav Majumder

Faculty Publications in Food Science and Technology

Recent scientific evidence suggests that food proteins not only serve as nutrients, but can also modulate the body’s physiological functions. These physiological functions are primarily regulated by some peptides that are encrypted in the native protein sequences. These bioactive peptides can exert health beneficial properties and thus are considered as a lead compound for the development of nutraceuticals or functional foods. In the past fewdecades, awide range of food-derived bioactive peptide sequences have been identified, with multiple health beneficial activities. However, the commercial application of these bioactive peptides has been delayed because of the absence of appropriate and scalable ...


Exogenous Lactobacilli Mitigate Microbial Changes Associated With Grain Fermentation (Corn, Oats, And Wheat) By Equine Fecal Microflora Ex Vivo, Brittany E. Harlow, Laurie M. Lawrence, Patricia A. Harris, Glen E. Aiken, Michael D. Flythe Mar 2017

Exogenous Lactobacilli Mitigate Microbial Changes Associated With Grain Fermentation (Corn, Oats, And Wheat) By Equine Fecal Microflora Ex Vivo, Brittany E. Harlow, Laurie M. Lawrence, Patricia A. Harris, Glen E. Aiken, Michael D. Flythe

Animal and Food Sciences Faculty Publications

Cereal grains are often included in equine diets. When starch intake exceeds foregut digestion starch will reach the hindgut, impacting microbial ecology. Probiotics (e.g., lactobacilli) are reported to mitigate GI dysbioses in other species. This study was conducted to determine the effect of exogenous lactobacilli on pH and the growth of amylolytic and lactate-utilizing bacteria. Feces were collected from 3 mature geldings fed grass hay with access to pasture. Fecal microbes were harvested by differential centrifugation, washed, and re-suspended in anaerobic media containing ground corn, wheat, or oats at 1.6% (w/v) starch and one of five treatments ...


Growing Yeast For Livestock, Zachary Christman Jan 2017

Growing Yeast For Livestock, Zachary Christman

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Over 500,000 tons of organic materials such as food scraps are disposed of each year in Wisconsin. A large percentage of this material could be composted or turned into useful products.5 The purpose of this article is to educate farmers and organizations on how to turn food waste into a high value food source for livestock. Yeast can be grown at any time of the year without the large inputs of agricultural chemicals and machinery that is common with other feed production methods. A yeast growing facility can be scalable to any size the producer wants such as ...


Production Of Fatty-Acyl-Glutamate Biosurfactant By Bacillus Subtilis On Soybean Co-Products, Mustafa E. Marti, William J. Colonna, Gabriel Reznik, Michelle Pynn, Kevin Jarrell, Buddhi P. Lamsal, Charles E. Glatz Mar 2015

Production Of Fatty-Acyl-Glutamate Biosurfactant By Bacillus Subtilis On Soybean Co-Products, Mustafa E. Marti, William J. Colonna, Gabriel Reznik, Michelle Pynn, Kevin Jarrell, Buddhi P. Lamsal, Charles E. Glatz

Chemical and Biological Engineering Publications

Fatty-acyl-glutamate (FA-Glu), a surfactin variant has been successfully produced using a genetically modified strain of Bacillus subtilis grown on glucose. However, yields with soybean hulls (SBH) replacing glucose were lower. This work was undertaken to reduce the yield loss when using SBH as the carbon source and to evaluate two other soy by-products, namely fiber and skim from aqueous oil extraction as alternative carbon and nitrogen sources.

Fermentation of soybean hulls, fibers and skim at various concentrations produced lower FA-Glu titers compared to S-7 medium. Neither increasing their amount nor supplementing with glucose increased the FA-Glu titer, suggesting the presence ...


Life Cycle Assessment (Lca) And Techno Economic Analysis (Tea) Of Algal Biomass And Biodiesel Production From Pyrolytic Substrate, Xuefei Zhao, Zhiyou Wen, Kurt A. Rosentrater Jul 2014

Life Cycle Assessment (Lca) And Techno Economic Analysis (Tea) Of Algal Biomass And Biodiesel Production From Pyrolytic Substrate, Xuefei Zhao, Zhiyou Wen, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Hybrid processing of cellulosic biomass, composed of thermochemical-based pyrolysis of biomass into fermentative substrates followed by biochemical-based algal fermentation into lipid-rich biomass was developed. The hybrid process has proven an effective way for producing biofuel from lignocellulosic biomass. In this work, life cycle assessment and techno economic analysis were performed for algal fermentation of the acetic-acid rich stage fraction of bio-oil under different scales and fermentation conditions. These results will provide guidance for choosing optimal algal fermentation parameters. Moreover, with more biodiesel produced, increased environmental and economic benefits per gallon of biodiesel can be expected.


Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Jaiswal, Nissreen Abu-Ghannam Jan 2013

Optimization Of Fermentation Conditions For The Utilization Of Brewing Waste To Develop A Nutraceutical Rich Liquid Product, Shilpi Gupta, Amit Jaiswal, Nissreen Abu-Ghannam

Articles

Utilization of brewers’ spent grain (BSG), for the development of a fermented liquid product rich in value-added phenolic compounds was investigated. Changes in and liberation of phenolic compounds and antioxidant activity during fermentation of BSG was studied. The effect of various particle size (PS), solid liquid (SL) ratio, fermentation time and rotation speed was optimized using response surface methodology (RSM) for the purpose of improving bacterial growth and the enhancement in the release of polyphenolic compounds. Contour maps generated using the response surface equation showed that the experimental variables significantly affected the response. A production of 10.4 log cfu ...