Index Catalog // ScholarsArchive@OSU

Color of strawberry juice and concentrate as influenced by heating and storage temperatures

Creator:: Hassanein, Sitir M.
Abstract:: This investigation was conducted to study the effects of blanching and storage temperatures on the color of strawberry juice and concentrate. Strawberry juice and concentrate (42°βrix) were prepared from blanched crushed Tioga strawberries. Crushed strawberries were blanched, in a steam-jacketed kettle, at 70°, 80°, and 90°C for 1 min. Ascorbic...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Sitir M. Hassanein for the

Analysis of flavor precursors in radish and radish color extracts

Creator:: Kucza, Myriam M.
Abstract:: Radish anthocyanin extract has potential as a natural colorant because of its pigment stability and attractive red hue. Presence of undesirable aroma compounds could limit its applications in foods. The pungent principle of radish, 4-methylthio-3-butenyl isothiocyanate (MTBI), is produced enzymatically upon cell injury from its glucosinolate precursor, 4-methylthio-3-butenyl glucosinolate (MTBG),...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Myriam M. Kucza for the degree of

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:: committee, Georgene V. Barte, Dr. M. W. Montgomery, Dr. H. D. Reese, and Dr. H. W

Strawberry wine color quality : influence of variety, maturity and mold contamination

Creator:: Pilando, Leticia S.
Abstract:: This study was conducted to evaluate the influence of maturity, mold contamination and variety on the color quality of strawberry wines. Indices for acceptability were determined using instrumental measurements and sensory analysis. Compositional analyses were done on the fully ripe and overripe Benton and Totem strawberries. Included were anthocyanin content,...
Resource Type:: Masters Thesis
Full Text:: /M 12 3 4 5 Storage Time (weeks) Figure 6. Change in Hunter "a" values of wines through

Development of a process for production of cantaloupe juice concentrate and determination of its composition and quality

Creator:: Galeb, Abduljalil Derhm Saeed
Abstract:: Fresh ripe, cantaloupes were processed into juice and juice concentrate. Processing trials were conducted on fresh and frozen fruits with and without rind. The effects of maceration enzymes and fining agents on yield and quality were investigated. Compositional measurement included °Brix, pH, titratable acidity, formol values, ascorbic acid content, total...
Resource Type:: Masters Thesis
Full Text:: indices and Hunter color parameters. Considerable ascorbic acid degradation occurred during processing

The role of ascorbic acid on discoloration of strawberry juice and concentrate

Creator:: Poei, Metty Soek-Kioen
Abstract:: The purpose of this.investigation was to determine how enzymes and oxygen influence the role ascorbic acid has on pigment degradation and browning during storage for strawberry juice and concentrate. The ascorbic and dehydroascorbic acid content of blanched and unblanched, nitrogen-treated and air-exposed samples of strawberry juice and concentrate was measured...
Resource Type:: Masters Thesis
Full Text:: polymeric color, color density, Hunter "a" value, and Hunter "L" value, suggesting that ascorbic acid can

Characterization of anthocyanins in fruit juices and natural colorants

Creator:: Hong, Victor
Abstract:: A method for separation and characterization of individual anthocyanins was developed. High Performance Liquid Chromatography (HPLC) with a polymer based reversed-phase column was used to separate the pigments while on-line Photodiode Array Detection (PDA) was employed to record the UV and Visible spectrum of the individual peaks. Spectral information obtained...
Resource Type:: Dissertation
Full Text:: for most of the samples were also determined. Included were Hunter L, a, b values, total

Red raspberry and blackberry juice and wine : the effect of processing and storage on color and appearance

Creator:: Rommel, Angelika
Abstract:: Wines were made from thawed, frozen red raspberries and blackberries (Meeker and Evergreen varieties, respectively) by 1. fermentation on the pulp, 2. fermentation of depectinized juice, and 3. fermentation of high temperature short time (HTST) treated depectinized juice. The influence of fining was also investigated. The wines were stored at...
Resource Type:: Masters Thesis
Full Text:: for six months. High performance liquid chromatography (HPLC), spectral and Hunter measurements

Causes of browning in pear juice concentrate during storage

Creator:: Cornwell, Chris
Resource Type:: Masters Thesis
Full Text:: storage was measured as increased absorbance at 420 nm, and as changes in Hunter L, a, b values

Development of analytical methodology for verification of authenticity in cranberry juice drinks and concentrates

Creator:: Hong, Victor
Resource Type:: Masters Thesis
Full Text:: Liquid Chromatography; Hunter L,a,b tristimulus parameters; Degree Brix; Titratable Acidity

ScholarsArchive@OSU

Color of strawberry juice and concentrate as influenced by heating and storage temperatures

Analysis of flavor precursors in radish and radish color extracts

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

Strawberry wine color quality : influence of variety, maturity and mold contamination

Development of a process for production of cantaloupe juice concentrate and determination of its composition and quality

The role of ascorbic acid on discoloration of strawberry juice and concentrate

Characterization of anthocyanins in fruit juices and natural colorants

Red raspberry and blackberry juice and wine : the effect of processing and storage on color and appearance

Causes of browning in pear juice concentrate during storage

Development of analytical methodology for verification of authenticity in cranberry juice drinks and concentrates

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search