Index Catalog // ScholarsArchive@OSU

Isolation and characterization of some oxidizing enzymes of the McFarlin cranberry

Creator:: Chan, Harvey T., 1940-
Abstract:: Due to the scarcity of information concerning the oxidase systems in cranberries the peroxidase, catalase, and polyphenolase systems, which are used as biochemical indexes of adequacy for enzyme inactivation in other fruits and vegetables, were investigated. Enzyme extracts were prepared from acetone powders with and without phenol-binding agents such as...
Resource Type:: Dissertation

Some factors involved in the clarification of whey wine

Creator:: Larson, Peter Kebren
Abstract:: The development of whey beverages including whey wine has been an area of whey utilization research. One study to produce a commercially salable wine from sweet whey, particularly cheddar whey, was undertaken. It included developing a process to clarify the naturally cloudy wine, monitoring the physical and chemical changes which...
Resource Type:: Masters Thesis
Full Text:: steel pump and an Ertel E-l Model stainless steel filter fitted with a number nine grade Ertel

The isolation and characterization of the pectic enzymes of the McFarlin cranberry

Creator:: Arakji, Omar Ahmed
Abstract:: Cranberries are processed mainly for the production of jelly, sauce and juice. The content of pectic substances in the cranberry gives the fruit a desirable property for processing such products. Pectic enzymes which catalyze the hydrolysis of pectic substances may affect the consistency of these products. The concern of this...
Resource Type:: Dissertation
Full Text:: are widely used in the clarification of fruit juices and wines. Endo (1965 a, b, c, d, e

Anthocyanin pigment, nonvolatile acid and sugar composition of blackberries

Creator:: Fan-Chiang, Ho-ju
Abstract:: The pigments of blackberry fruit were investigated by analytical and preparative high performance liquid chromatography (HPLC) to characterize anthocyanin patterns in commercially important blackberry (Rubus eubatus) cultivars and selections. Five anthocyanin pigments were detected in Evergreen blackberry and they were identified as cyanidin-3-glucoside, cyanidin-3-rutinoside, pentosecyanidin derivative and two acylated cyanidin...
Resource Type:: Masters Thesis
Full Text:: , AN ABSTRACT OF THE THESIS OF Ho-ju Fan-Chian2 for the

Metabolic and Renal Effects of Consumption of Five Phytochemicals in High-Fat Fed C57BL6J Mice

Creator:: Hansen, Allysa
Abstract:: A significant body of research demonstrates that phytochemical intake favorably influences hepatic metabolism via a number of different biological mechanisms. Other research has shown a positive effect of certain phytochemicals on kidney health, specifically in ameliorating symptoms of kidney disease. The current research used three separate studies that tested the...
Resource Type:: Masters Thesis
Full Text:: Renin-angiotensin system R+E Raspberry Ketone plus Ellagic Acid RES Resveratrol RK Raspberry

Metabolic Effects in C57B/6J Mice Fed a High-Fat Diet Supplemented With Walnuts, Raspberries and Other Whole Foods

Creator:: Miranda-Garcia, Omar
Abstract:: Health benefits obtained from consumption of fruits and vegetables have the potential to improve the lifestyle of individuals. The walnut is a polyunsaturated fatty acid (PUFA)-rich whole food that is readily available in the U.S and has been shown to potentially reduce risk of Metabolic Syndrome. Furthermore, consumption of polyphenol...
Resource Type:: Masters Thesis

The Influence of Vineyard and Winery Nitrogen Supplementation on Chardonnay and Pinot Noir Winemaking and Wine Quality

Creator:: Ruppel, Meghan L.
Abstract:: Nitrogen is a crucial nutrient required by yeast to successfully complete alcoholic fermentation. In particular, the concentration of yeast assimilable nitrogen (YAN) influences fermentation kinetics and the production of a range of volatile aroma compounds, both desirable and undesirable. YAN is naturally present in the grape, but producers can boost...
Resource Type:: Masters Thesis
Full Text:: well cared for each year. Additional thanks are also due to Dr. Paul Schreiner and Dr. Emily Ho for

Metabolic effects of consumption of quercetin, ellagic acid, cherry, and apple phytochemical extracts in high-fat fed mice

Creator:: Smith, Sarah M.
Abstract:: Metabolic improvements and changes in gene expression were measured in mice fed polyphenol-rich extracts derived from apples and sweet cherries, and the common phytochemicals, quercetin and ellagic acid. Polyphenol-rich extracts were produced by solid phase extraction and column chromatography. Extracts and purified compounds were mixed into a high-fat (HF, 60%...
Resource Type:: Masters Thesis

Modulation of metabolic syndrome by soy isoflavones : in-vitro and in-vivo models

Creator:: Luo, Ting
Abstract:: Metabolic syndrome is a problem affecting people around the world. In a number of studies, soy intake has been documented to possess antidiabetic and anticardiovascular effect. My project is focused on the impact of the intake of compounds found within soy, the isoflavones, their impact on metabolic syndrome symptoms, and...
Resource Type:: Dissertation
Full Text:: . Bakalinsky, and Dr. Ho, for serving on my committee and providing indispensable advice, and support on my

Variation of sugars and acids during ripening of pears and in the production and storage of pear concentrate

Creator:: Akhavan, Iradj
Abstract:: Two methods of separating sugars and acids of Bartlett pears were compared to decide upon a working method for later studies involving identification and quantitation of sugars and acids during ripening of pears and in the production and storage of pear concentrate. The first method involved precipitation of acids with...
Resource Type:: Dissertation
Full Text:: CONCENTRATE Abstract approved: Dr. R, E, Wrolstad Two methods of separating sugars and acids

Apple polyphenolics and their antioxidant properties : influence of cultivars, post-harvest storage, and 1-MCP treatment

Creator:: Widyasari, Maria Angela Artania
Abstract:: The distribution of total phenolics, antioxidant capacity, monomeric anthocyanin, and ascorbic acid contents in the peel and flesh of Red Delicious, Granny Smith, and Fuji apples during a six-month storage period were determined. In addition, the effect of 1-MCP (1-Methyl cyclopropene) on these parameters of the edible portion of apples...
Resource Type:: Masters Thesis
Full Text:: Storage and 1- MCP Treatment Abstract approved: Ronald E. Wrolstad The distribution of total

The potato : composition, non-enzymatic browning and anthocyanins

Creator:: Rodriguez-Saona, Luis Enrique
Abstract:: Chipping varieties and model systems were used to determine the role of potato constituents on chip color. Composition was evaluated by HPLC and chip color measured using a ColorQuest colorimeter. Reducing sugar (RS) content did not completely explain color quality when present in low concentrations (<60 mg/lOOg). Levels of ascorbic...
Resource Type:: Dissertation
Full Text:: Potato: Composition. Non- Enzvmatic Browning and Anthocyanins Abstract approved by: Ronald E

Influence of processing and storage on the phenolic composition of apple, pear and white grape juice

Creator:: Spanos, George A.
Abstract:: Methodology for characterization of the phenolic profile of apple, pear and grape juice was developed. It utilized High Performance Liquid Chromatography (HPLC) for separation of individual phenolic compounds and Diode Array Detection for recording the Ultra-violet (UV) spectrum of chromatographic peaks. The high resolution achieved and the ability of recording...
Resource Type:: Dissertation
Full Text:: Abstract approved — ..- .,—^ —.- Dr. Ronald E. Wrolstad Methodology for characterization of the phenolic

An investigation of the carbonyl compounds in gamma irradiated milk fat

Creator:: Papaioannou, Stamatios Evangelos
Resource Type:: Masters Thesis
Full Text:: : H20 > H- + HO- H20 >• H20 ++e H20 + > HO' + H+ HO + e > H20

Use of anthocyanin analyses to determine glycosidase activity in juice- and wine-processing enzymes

Creator:: Wightman, JoLynne Dee
Resource Type:: Dissertation
Full Text:: approved: Ronald E. Wroistad A screening procedure combining HPLC and spectrophotometric analyses was

Pineapple juice : phenolic composition and enzymatic browning inhibition

Creator:: Wen, Ling
Abstract:: The phenolic profile of pineapple juice was analyzed by reverse-phase HPLC/Diode Array Detector, and 9 major peaks accounting for 70% of total peak area were characterized. None of these peaks are represented by the pineapple phenolics reported to be present by previous workers. Most of the major peaks are not...
Resource Type:: Dissertation
Full Text:: : Phenolic Composition and Enzymatic Browning Inhibition. Abstract approved: Ronald E. Wrolstad The

Flavors associated with the use of Cheddar cheese whey powder in ice cream mix

Creator:: Andrews, Matthew V.
Abstract:: Flavor problems associated with the use of cheddar cheese whey in the formulation of ice cream and other food products were investigated. During spray drying of whey, which transforms bulky liquid whey into an easily transportable and storable powder, various degrees of off-flavor development may occur depending on the care...
Resource Type:: Masters Thesis
Full Text:: Abstract approved ' (Dr. M. E./Morgan) Flavor problems associated with the use of cheddar cheese

Clarification of pear juice by hollow fiber ultrafiltration

Creator:: Kortekaas, Marjan G.
Resource Type:: Masters Thesis
Full Text:: : CLARIFICATION OF PEAR JUICE BY HOLLOW FIBER ULTRAFILTRATION Abstract approved: Dale E. Kirk

Extending shelf-life of fresh-cut pears

Creator:: Dong, Xiaoling
Abstract:: Different concentrations of various browning inhibitors and a firming agent were evaluated to prevent browning and softening of Bartlett, Bosc and Anjou pear slices during cold storage at 2-4°C. Browning inhibition effect of Semperfresh, Snow Fresh and cysteine were compared with that of 4-hexylresorcinol (4-HR). The effect of ripeness on...
Resource Type:: Masters Thesis
Full Text:: Shelf-Life of Fresh-Cut Pears Abstract approved: , , Ronald E. Wrolstald Different concentrations

[9,10-methylene-¹⁴C] sterculic acid metabolism in the rat : urinary metabolites, liver tissue distribution, and induced [omega]-hydroxylase activity

Creator:: Eisele, Thomas Anthony
Abstract:: Corn oil (CO) and Sterculic foetida oil (SFO) fed rats were injected with [9, 10-methylene-¹⁴C]sterculic acid. Less than 1% of the label was expired as carbon dioxide. The majority of the label was excreted in the urine as short-chain dicarboxylic acids with an intact cyclopropane ring. The major metabolites for...
Resource Type:: Masters Thesis
Full Text:: Joseph E. I^ixon Corn oil (CO) and Sterculic foetida oil (SFO) fed rats were 14 injected with [9

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