Index Catalog // ScholarsArchive@OSU

Effects of closure type on consumers' perception of wine quality

Creator:: Jorgensen, Emily M.
Abstract:: Natural corks have long been used as wine closures. However, they are associated with causing multiple adverse effects to the wine they are attempting to preserve. Alternative closures such as synthetic corks and screw caps were developed in order to reduce and/or eliminate these problems. However, the major cause of...
Resource Type:: Masters Thesis
Full Text:: development of this project. Thanks to my other committee members: Dr. Robert McGorrin and Dr. Deborah

Fruit quality evaluation of strawberries (Fragaria ananassa) grown in California and Oregon

Creator:: Jetti, Rajesh R.
Abstract:: Five genotypes from California (Ventana, Caniarosa, San Miguel, 13G97, and Venice) and Oregon (Totem, Puget Reliance, Puget Summer, Hood and Independence) were evaluated for quality. The volatile compounds were analyzed using head space solid phase micro extraction-gas chromatography-flame ionization detection (GGFID) and gas chromatography-mass spectrometry (GC-MS). Odor activity values of...
Resource Type:: Masters Thesis
Full Text:: University. I thank Dr. Robert McGorrin, Head of the dept, FST, and Dr. Alan Bakalinsky, Head of the

Evaluation of the off-flavor in English sole (Parophrys vetulus) using descriptive analysis techniques and consumer testing

Creator:: Geise, Laura Ann
Abstract:: English sole (Parophrys vetulus) is a flatfish found in abundance in the Pacific Ocean and is part of the Pacific Northwest's and California's commercial trawl fishery. Stock levels of this fish are at all time highs but there are decreased landings due to low demand and acceptability. With new regulations...
Resource Type:: Masters Thesis
Full Text:: like to thank my graduate committee members Michael Penner and Robert McGorrin, and graduate

The effects of odor on vegetable flavor perception and the hedonic response

Creator:: Padmanabhan, Arthi
Abstract:: While previous research has suggested that bitterness is the key determinant of vegetable disliking, it is unknown what role odor plays in vegetable hedonics. We therefore investigated the impact of odor as well as taste on liking and disliking of four vegetables (steamed asparagus and Brussels sprouts; fresh celery and...
Resource Type:: Masters Thesis

Flavor composition of transgenic raspberry bushy dwarf virus-resistant 'Meeker' raspberries

Creator:: Malowicki, Sarah Marie-Mahler
Abstract:: Raspberries have been popular since the time of the ancient Greeks. Red raspberries are cultivated throughout the world, particularly in the Pacific Northwest region of the United States and Canada. The raspberry bushy dwarf virus (RBDV) causes significant reduction in yield and crumbly fruit in raspberries, blackberries and raspberry-blackberry hybrids....
Resource Type:: Masters Thesis
Full Text:: , Robert McGorrin, and William Boggess for their comments, help in understanding the subjects beyond the

Development and Validation of Sustainable Packaging Approaches for Longevity of Postharvest ‘Bartlett’ Pears and Safflower Oil

Creator:: Rosenbloom, Rachel A.
Abstract:: The overall goal of this study was to investigate the gaps in edible packaging research in the areas of both edible coatings and edible films. This was accomplished across two distinct studies, in the pursuit of extending shelf life of fresh fruit for decreasing food loss, and heightening the consumer...
Resource Type:: Masters Thesis

Individual Differences in Retronasal Odor Responsiveness : Effects of Aging and Concurrent Taste

Creator:: Flaherty, Tyler J.
Abstract:: Taste sensitivity has been considered the primary chemosensory factor in studies of chemical senses and ingestive behavior. However, recent research has shown that retronasal olfaction is at least equally important in food preference and selection. Additionally, taste has been shown to modulate perceived intensity of retronasally perceived odors. The objectives...
Resource Type:: Masters Thesis
Full Text:: committee members, Dr. Elizabeth Tomasino, Dr. Robert McGorrin, and Dr. James Males for their commitment

Investigation of Optimal Extraction Conditions and Microencapsulation Technique for Stabilizing Anthocyanins and Polyphenols from Fruit Materials

Creator:: Wang, Wenjie
Abstract:: The objectives of this research were to investigate the optimal conditions for anthocyanins extraction from different anthocyanin rich fruit and to develop microencapsulation formulation for improving stability of anthocyanin extracts. In the extraction optimization study, two extraction methods, "conventional solvent extraction (CE)" and "ultrasound-assisted extraction (UE)" for three different anthocyanin-rich...
Resource Type:: Masters Thesis
Full Text:: McGorrin for being my committee members and sharing their insights about how to well design the

Inactivation of bacterial pathogens in drinking water

Creator:: Hartlerode, Evelyn R.
Abstract:: Wine is known to have been enjoyed since ancient times. Although early civilizations where unaware of scientific mechanisms of the properties of wine, empirical methods allowed them knowledge of its intoxicating effects as well as its healthful properties. These properties lead the ancients to use wine for many purposes including...
Resource Type:: Masters Thesis
Full Text:: last few years. I would also like extend my thanks to my thesis committee; Robert McGorrin, James

Efficacy of electrolyzed oxidizing (EO) water combined with UV-C light or gas exchange on sanitization of Jalapeno pepper using Serratia marcesens as surrogate for Salmonella

Creator:: Ekundayo, Olufunmilayo R.
Abstract:: Jalapeño peppers are usually consumed raw and fresh with minimal processing. They contain antioxidants and bioactive compounds which are of human health benefits. There have been an increasing number of reports of foodborne outbreaks attributed to inaccessibility of sanitizers to Salmonella , E.coli and Listeria monocytogenes when embedded in fruit...
Resource Type:: Masters Thesis
Full Text:: profound appreciation goes to my thesis committee members, Dr. Robert McGorrin, Dr. Lisbeth Goddik and Dr

Development and characterization of shelf-life and sensory properties of restructured albacore tuna (Thunnus alalunga) rolls

Creator:: Roblero, Josef G.
Abstract:: Albacore tuna (Thunnus alalunga) rolls were developed using two albacore meat levels and three different treatment combinations. Albacore meat levels of 82 and 88% (Alb82 and Alb88) of the total weight formulation were examined. The different treatments consisted of 0.3% sodium tripolyphosphate (STPP), 0.3% STPP plus nitrites (150 ppm), and...
Resource Type:: Masters Thesis
Full Text:: , who made my time there very pleasant. I am very grateful to my academic committee: Dr. Robert

Impact of Preharvest Weathering, Without Sprouting, on the Quality of Soft White Winter Wheat in the U.S. Pacific Northwest

Creator:: Smith, Jordan L.
Abstract:: When wheat is exposed to rain in the period before harvest, it sometimes causes the problem of pre-harvest sprouting (PHS). Wheat that undergoes sprouting has poor end-use quality and is less valuable. In recent years, the U. S. Pacific Northwest (PNW) has experienced increased summer showers sometimes causing widespread PHS....
Resource Type:: Masters Thesis
Full Text:: , Teepakorn Kongraksawech, Robert McGorrin, and Robert Zemetra for serving on my committee as well as Dr

Effects of Vineyard Managements on Grape and Wine Quality in Response to Grapevine Red Blotch Disease

Creator:: Huang, Ling
Abstract:: Grapevine red blotch virus (GRBV) is a single-stranded DNA virus that causes grapevine red blotch disease (GRBD). Symptoms of GRBD include red discoloring of leaf margins and red veins on the underside of the leaves. GRBD affects the plant's metabolism and photosynthetic pathways, and disrupts carbon translocation and chlorophyll concentrations....
Resource Type:: Dissertation
Full Text:: . Alexander Levin, Dr. Chris Mundt, Dr. James Osborne, Dr. Michael Qian, and Dr. Robert McGorrin to improve

Investigation of Procyanidins Used in Botanical Dietary Supplements

Creator:: Rue, Emily A.
Abstract:: Polyphenolic compounds found in foods such as fruits, vegetables, legumes, nuts and grains, are an integral part of the human diet. Within polyphenols, proanthocyanidins are referred to as condensed tannins and encompass procyanidins, propelargonidins and prodelphinidins. Among these, procyanidins are the largest group. Recent interest in these compounds is related...
Resource Type:: Dissertation
Full Text:: Drs. Taifo Mahmud, Jane Ishmael, Robert McGorrin, and Jung Kwon for their guidance and intellectual

Cellulose Nanomaterial Incorporated Edible Coatings for Improving Storability of Postharvest Fruit: Mechanisms, Development and Validation

Creator:: Deng, Zilong
Abstract:: The overall objective of this dissertation study was to develop and validate the performance of cellulose nanomaterials (CNs) incorporated fruit coatings for improving the storability of postharvest pears and bananas under various storage conditions. Four specific studies were conducted to fulfill the research objectives as stated below. First, cellulose nanocrystal...
Resource Type:: Dissertation
Full Text:: and personal development. I would like to thank Dr. John Simonsen, Dr. Robert McGorrin, Dr. Vincent

Physicochemical Properties of Frozen Fish Muscle as Affected by Trimethylamine-N-oxide demethylase (TMAOase)

Creator:: Lee, Jinhwan
Abstract:: Gadoid fish, like Alaska pollock and Pacific whiting, have a high level of trimethylamine-N-oxide demethylase (TMAOase) that catalyzes the breakdown of trimethylamine-N-oxide (TMAO) to formaldehyde (FA) and dimethylamine (DMA) even during frozen storage. FA reacts with amino acid residues to promote covalent cross-links in the formation of inter- and intramolecular...
Resource Type:: Dissertation
Full Text:: A. DeWitt, Robert J. McGorrin, Maret G. Traber, Yanyun Zhao) for their continuous supports during

Grape and Wine Aroma Influenced by Vine Nutrient Status, Vigor and Crop Levels in Oregon Pinot Noir

Creator:: Yuan, Fang
Abstract:: Wine volatile composition is one of the most important constitutes of wine quality, and it is greatly influenced by number of factors. The studies herein were conducted to evaluate the grape and wine aroma affected by different vine nutrient status, vigor and crop levels of Oregon Pinot noir. In the...
Resource Type:: Dissertation
Full Text:: offer my sincere thanks to Dr. Patricia Skinkis, Dr. Paul Schreiner, Dr. Robert McGorrin, Dr. Michael

Aroma-active compounds in 'Centennial', 'Citra' and 'Nelson Sauvin' hop varieties and their aroma contribution to dry-hopped beer

Creator:: Feng, Shi
Abstract:: The objectives of this study were to 1) measure and compare the compositional differences of essential oil among three hop cultivars ('Centennial’, 'Citra' and 'Nelson Sauvin'), 2) identify the odor-active aroma compounds in three varieties of hops and 3) investigate the behavior of hop-derived aroma compounds in beers prepared by...
Resource Type:: Masters Thesis

Flavor comparison of ultra high temperature processed milk heated by Ohmic heating and conventional methods

Creator:: He, Juan
Abstract:: Ultra high temperature (UHT) processing can extend shelf life of milk to several months without refrigeration, which is more convenient and energy saving than pasteurized milk. However, the poor acceptance caused by "cooked" flavors limits its marketing growth, especially in United States. Ohmic heating, which has a more uniform and...
Resource Type:: Masters Thesis
Full Text:: sincere thanks to Dr. Lisbeth Goddik, Dr. Robert McGorrin and Dr. Shaun Townsend for serving as my

The effect of hopping technology on lager beer flavor and flavor stability and the impact of polyphenols on lager beer flavor and physical stability

Creator:: Aron, Patricia M.
Abstract:: Beer is one of the most extensively consumed beverages world-wide and it is almost always brewed with hops (Humulus lupulus, L.). Hops provide beer with bitterness, aroma, flavor and texture and also enhance specific beer properties such as foam stability, clarity (colloidal stability), color, flavor stability and microbial stability. Hops...
Resource Type:: Dissertation
Full Text:: support and encouragement: Dr. Robert McGorrin, Dr. Vincent Remcho, Dr. Deborah Rubel and Dr. Daniel

DNA-based identification of commercially important salmon and trout species (genera Oncorhynchus and Salmo) in North America

Creator:: Rasmussen, Rosalee S.
Abstract:: There are seven commercially important species of salmon and trout (genera Oncorhynchus and Salmo) in North America, many of which are closely related but command markedly different prices. The purpose of this research was to provide improved and novel methods for the detection of salmon species substitution on the commercial...
Resource Type:: Dissertation

Aroma investigation of ‘Marion’ and thornless blackberries in Pacific Northwest of America

Creator:: Du, Xiaofen
Abstract:: The objectives of this study are to 1) qualitatively and quantitatively measure the odor-active compounds in ‘Marion’ blackberry; 2) compare the aroma profiles of advanced selections and new cultivars of thornless blackberry cultivars with ‘Marion’; 3) study the development of furaneol in ‘Marion’ during ripening and; 4) investigate the distribution...
Resource Type:: Dissertation
Full Text:: wonderful parties for us all these years. I offer sincere thanks to Dr. Chad Finn, Dr. Robert

Extraction and production of n-3 polyunsaturated fatty acid concentrate from Pacific sardines (Sardinops sagax)

Creator:: Okada, Tomoko
Abstract:: Intrinsic characteristics of Pacific sardines were determined. The lipid content in sardines was initially low (6.79%) in the beginning ofthe season, increased to 22.95% in mid-August, and decreased slightly by the end of September. An inverse correlation (R² = -0.90) was found between lipid and moisture content. Analysis showed that...
Resource Type:: Dissertation
Full Text:: . Charles D. Boyer, Dr. Robert J. McGorrin, Dr. Yi-Cheng Su, and Dr. Andrew S. Ross) for their generous

Initial velocity analyses of milling effects on rates of enzyme-catalyzed saccharification of native wheat straw

Creator:: Nguyen, Quynh M.
Abstract:: There is considerable interest in developing environmentally friendly processes for the economical conversion of biomass plant material to biofuels, bioproducts and biomaterials. One approach to such a conversion process is to make use of enzymes for the conversion of plant polysaccharides to simple sugars; the simple sugars could then be...
Resource Type:: Masters Thesis
Full Text:: . Robert J. McGorrin, Dr. Keith Levien, and Dr. Skip Rochefort. I special thank to my lab co-workers

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