Index Catalog // ScholarsArchive@OSU

Influence of cultivar and maturity on blackberry polyphenolics and investigation of sediment formation in blackberry juice

Creator:: Siriwoharn, Thanyaporn
Abstract:: The influence of cultivar and maturity on polyphenolic composition and antioxidant activity was investigated by UV-Visible spectrophotometry and analytical high performance liquid chromatography (HPLC) in commercially important blackberry cultivars and selections. The anthocyanin pigments changed tremendously with ripening. Total anthocyanins increased from 74.7-317 mg/100g fw from underripe to over ripe...
Resource Type:: Dissertation

Effect of organic production system and harvest date on the quality of blackberry fruit for fresh and processed markets

Creator:: Liu, Mingyang
Abstract:: Blackberry (Rubus sp.) fruit are a good source of phenolic compounds and anthocyanins, and are consumed in fresh and processed forms. Though organic products become more popular, limited information is available about how different organic production methods affect the post-harvest quality of blackberry fruit. The objective of this project was...
Resource Type:: Masters Thesis
Full Text:: and maturity affect postharvest quality of fruit from erect blackberries. HortScience 31 (2):258-261

Polyphenol oxidase of D'Anjou pears (Pyrus communis L.)

Creator:: Halim, David Husien
Abstract:: Stability, substrate and inhibitor specificity and electrophoretic properties of a crude polyphenol oxidase (PPO) preparation extracted from d'Anjou pears (Pyrus communis L.) were investigated. Levels of polyvinylpyrrolidone and pH of buffer for extraction were found to affect the specific activity of the extracted enzyme. An extract prepared with 1.5 g...
Resource Type:: Masters Thesis

Impact of seasonal variation and growing environment on blackberry aroma

Creator:: Wang, Yuanyuan
Abstract:: Blackberries have been enjoyed for their delicious flavor and high nutritional value for hundreds of years. In North America, blackberries were cultivated since 1850-1860. Blackberries have their characteristic and unique aromas depending on the cultivar and growing conditions. The objective of this study was to evaluate the impact of seasonal...
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:: Puree Products. HortScience 2005, 40, 513-515. Guichard, E. Formation of Volatile Components of two

Edible coatings to improve storability and enhance nutritional value of strawberries (Fragaria ananassa) and raspberries (Rubus ideaus)

Creator:: Han, Chunran
Abstract:: Strawberries {Fragaria ananasa) and raspberries {Rubus ideaus) are good sources ofmany important nutrients, and have great potential to improve human health. However, they are highly perishable and have a very short shelf-life mainly due to the attack of fungi and high respiration rate. Edible coatings, especially chitosan-based coatings have been...
Resource Type:: Masters Thesis
Full Text:: Arul, J. 1992a. Chitosan coating to extend the storage life of tomatoes. Hortscience. 27: 1016-1018

Improved moisture permeability determinations for packaging films and food coatings

Creator:: Tello-Lopez, Edgar Eduardo
Abstract:: Equipment and procedures for the rapid measurement of the water vapor permeability of polymer films and food coatings has been evaluated. The method uses an electronic sensor to measure the concentration increase in water vapor diffusing through a film into a chamber of known volume. Air of known humidity is...
Resource Type:: Masters Thesis

Effects of maturity and blanching on carbohydrate components of frozen normal sweet (su) and supersweet (sh₂) corn

Creator:: Su, Shanghe
Abstract:: Three varieties of sweet corn (Zea mays L.) , including two supersweet (Crisp 'N Sweet 710 and Rogers 3376) and one normal sweet (Jubilee), were harvested at six stages of maturity (80-72% moisture for supersweet and 75-68% moisture for normal sweet) at three days intervals. Changes in physical and chemical...
Resource Type:: Masters Thesis

Data Mining in Food Science Research and Technical Functionality of Wheat Straw-Derived Fibers

Creator:: Karaarslan Urhan, Tuba
Abstract:: This dissertation focused on data mining in food science research and on the technical functional properties of wheat straw-derived biorefinery-byproduct fiber preparations as related to potential applications as food ingredients. This first study evaluated the importance of electronic bibliographic database selection and multiple database usage during the information retrieval phase...
Resource Type:: Dissertation

Characterization of phenolics in Marion and Evergreen blackberries

Creator:: Siriwoharn, Thanyaporn
Abstract:: Frozen Marion (Rubus sp. hyb) and Evergreen blackberries (Rubus laciniatus) (whole berries, berries without seeds, and seeds alone) were acetone/ chloroform extracted. Phenolics were isolated using C₁₈ cartridges and polyamide resins, then characterized and measured by reversed-phase HPLC/diode array spectral techniques. The Polyamide isolated fractions of Marion berries contained four...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Influence of cultivar and maturity on blackberry polyphenolics and investigation of sediment formation in blackberry juice

Effect of organic production system and harvest date on the quality of blackberry fruit for fresh and processed markets

Polyphenol oxidase of D'Anjou pears (Pyrus communis L.)

Impact of seasonal variation and growing environment on blackberry aroma

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

Edible coatings to improve storability and enhance nutritional value of strawberries (Fragaria ananassa) and raspberries (Rubus ideaus)

Improved moisture permeability determinations for packaging films and food coatings

Effects of maturity and blanching on carbohydrate components of frozen normal sweet (su) and supersweet (sh₂) corn

Data Mining in Food Science Research and Technical Functionality of Wheat Straw-Derived Fibers

Characterization of phenolics in Marion and Evergreen blackberries

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