Index Catalog // ScholarsArchive@OSU

Investigating the effects of temperature on secondary metabolism in Vitis vinifera L. cv. merlot berries

Creator:: Cohen, Seth D.
Abstract:: Grapes (e.g. Vitis vinifera L.) are one of the more important fruit crops from an economic standpoint with world market values over 550 million US dollars in 2007 and 2008, second to apples (United States Department of Agriculture). While a satisfactory level of ripeness is of primary concern, the quality...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Seth D. Cohen for the degree of Doctor of Philosophy in Food

Aroma comparison of 'Marion' (Rubus sp. L.) and 'Thornless Evergreen' (R. laciniatus L.) blackberries

Creator:: Klesk, Keith
Abstract:: 'Marion' and 'Thornless Evergreen' blackberry volatiles were analyzed by capillary gas chromatography-flame ionization detection (GC-FED) and GC-mass spectrometry (GC-MS). Based on total percentage of FID area 'Thornless Evergreen' contains significantly more alcohols, hydrocarbons, and phenols than the 'Marion'; 'Marion' contains more acids and esters. Both cultivars contained comparable amounts of...
Resource Type:: Dissertation
Full Text:: COMPARISON OF 'MARION' (Rubus sp. L.) AND 'THORNLESS EVERGREEN' (R. laciniatus h.) BLACKBERRIES Abstract

Assessing the impact of temperature on grape phenolic metabolism

Creator:: Cohen, Seth D.
Abstract:: Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
Resource Type:: Masters Thesis
Full Text:: pretext AN ABSTRACT OF THE THESIS OF Seth D. Cohen for

Understanding the principles and procedures to retain green and red pigments in thermally processed peels-on pears (Pyrus communis L.)

Creator:: Ngo, Thao Xuan
Abstract:: Thermal stabilization of chlorophyll and anthocyanin on pear peels during thermal process was investigated in this study. The green color of peels-on thermally processed (canned) pears was successfully retained by complexation of magnesium-free chlorophyll with zinc ions, and the red pigments were stabilized through anthocyanin-stannous complexation and polymerization of pear...
Resource Type:: Dissertation
Full Text:: to Retain Green and Red Pigments in Thermally Processed Peels-On Pears (Pyrus communis L

Bacterial inhibition by electrolyzed oxidizing water and application to disinfection of sprout seeds

Creator:: Stan, Silvia D.
Abstract:: Alfalfa sprouts have been implicated in several salmonellosis outbreaks in recent years. Electrolysis of a NaCl solution generates, in the anode side of a two-chamber electrolyzer, acidic electrolyzed oxidizing (EO) water which contains Cl₂, HOC1, dissolved oxygen, and it is characterized by a low pH and a high oxidation reduction...
Resource Type:: Dissertation
Full Text:: !* 4.0 y& ^L nitrogen D is til le d o to b b ^^ 0 50

Influence of vine vigor and shading in Pinot noir (Vitis vinifera L.) on the concentration and composition of phenolic compounds in grapes and wine

Creator:: Cortell, Jessica M.
Abstract:: In 2003 and 2004 vigor zones were delineated in two commercial vineyard sites based on vine growth variation to assess fruit and wine phenolic chemistry. In 2004, the effects of shading on the accumulation of phenolic compounds were also investigated. Model extractions were done from the shading experiment and the...
Resource Type:: Dissertation
Full Text:: vinifera L.) on the Concentration and Composition of Phenolic Compounds in Grapes and Wine

Physio-chemical properties of Pacific whiting surimi as affected by various freezing/storage conditions and gel preparation methods

Creator:: Hoffman, Justine D.
Abstract:: The effects of freeze-drying and flake freezing of surimi on biochemical and physical properties as affected by various storage conditions were examined. Using three cooking parameters shear stress and strain values were evaluated to measure gelation properties of surimi gels. Stress values increased up to 3 months and then decreased...
Resource Type:: Masters Thesis

Yeast protein release during fermentation and aging in a model wine

Creator:: Rowe, Jeffrey D.
Abstract:: Yeast mannoproteins released during the process of aging wine on the yeast lees have been reported to make important contributions to wine quality. However, few mannoproteins have been identified in wine and their lifespan during aging is unknown. As a first step towards better understanding the contributions of yeast mannoproteins...
Resource Type:: Masters Thesis
Full Text:: OF Jeffrey D. Rowe for the degree of Master of Science in Food Science and Technology

Changes in fruit flavor intensity in sucrose based model systems : effects of pH level, acid type, and sourness

Creator:: Cowden, John D.
Abstract:: Acidulants are an important functional ingredient group in the food industry, providing sourness, lowering pH, ensuring safe processing, and extending shelf life. Hence, understanding the effect of acids on sensory characteristics of foods is critical. Of the many topics dealing with acidulants, sourness is a topic where considerable research has...
Resource Type:: Masters Thesis
Full Text:: fermentation it occurs in both the D and L forms (Arnold 1975). Lactic acid is widely found in many foods

The impact of Saccharomyces and non-Saccharomyces yeast on the aroma and flavor of Vitis vinifera L. cv. 'Pinot Noir' wine

Creator:: Takush, David G.
Abstract:: The impact of yeast on the aroma and flavor of Vitis vinifera L. cv. 'Pinot Noir' wine was investigated. Due to the presence of naturally occurring yeast and bacteria on grapes and wine equipment, and the influence these microorganisms have on wine, a means of eliminating microorganisms from grape must...
Resource Type:: Masters Thesis
Full Text:: secondary sugar units can include -L- arabinofuranose, -L-rhamnopyranose, -D-xylopyranose, and -D

ScholarsArchive@OSU

Investigating the effects of temperature on secondary metabolism in Vitis vinifera L. cv. merlot berries

Aroma comparison of 'Marion' (Rubus sp. L.) and 'Thornless Evergreen' (R. laciniatus L.) blackberries

Assessing the impact of temperature on grape phenolic metabolism

Understanding the principles and procedures to retain green and red pigments in thermally processed peels-on pears (Pyrus communis L.)

Bacterial inhibition by electrolyzed oxidizing water and application to disinfection of sprout seeds

Influence of vine vigor and shading in Pinot noir (Vitis vinifera L.) on the concentration and composition of phenolic compounds in grapes and wine

Physio-chemical properties of Pacific whiting surimi as affected by various freezing/storage conditions and gel preparation methods

Yeast protein release during fermentation and aging in a model wine

Changes in fruit flavor intensity in sucrose based model systems : effects of pH level, acid type, and sourness

The impact of Saccharomyces and non-Saccharomyces yeast on the aroma and flavor of Vitis vinifera L. cv. 'Pinot Noir' wine

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