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
Full Text:: . Clifford B. Pereira, and Dr. Florian L. Cerklewski for their valuable advice and wonderful support. I

Gas chromatographic identification of chlorinated insecticides based on their U.V. degradation

Creator:: Banks, K. A. and Bills, D. D.
Abstract:: Certain chlorinated insecticides can be identified by electron capture gas-liquid chromatographic (EC-GLC) analysis of the prepared sample before and after treatment with ultraviolet irradiation, Upon U.V. treatment, characteristic degradation products arise from the insecticides investigated. Comparison of the degradation pattern obtained by EC-GLC of unknown and authentic insecticides provides an...
Resource Type:: Capstone Project
Full Text:: . IO H.F. \V1cH:1>1AKN, "'- I. P.uTERSON, P.A. CLIFFORD, A. K. KEIN AND l f. \'. CLARoR:--:,]. Ass,ic

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
Full Text:: dysfunction, and stroke (Stavric 1997; Parr and Bolwell 2000). A review by Clifford (2000b) showed that 5-0

Studies of aflatoxin B1 in rainbow trout (Salmo gairdneri) ;|b1. Carcinogenicity and chemical structure : 2. Tissue and subcellular distribution of 14C from aflatoxin B₁-14C

Creator:: Ayres, James Lee
Resource Type:: Dissertation
Full Text:: toxicity, this organ 16 has been the most widely studied. Butler and Clifford (19) found

The effect of irradiation with ultraviolet light on chlorinated hydrocarbon insecticides : a review

Creator:: Banks, Kenneth A.
Abstract:: Pesticide chemists have recognized since the 1940's that ultraviolet light was deleterious to the insecticidal properties of certain compounds. However, it has been only within the last 15 years that a number of photodecomposition products of the chlorinated hydrocarbon insecticides have been isolated and identified. The degradation of insecticides by...
Resource Type:: Capstone Project
Full Text:: . Patterson, P. A. Clifford, A. K. Klein and H. V. Claborn. 19h6. Decomposition and Volatility of DDT and

Perceptual characteristics of selected acidulants by different sensory and multivariate methods

Creator:: Rubico, Sonia Mendoza
Abstract:: The taste qualities of acidulants have not been studied in detail despite the fact that they are widely used by the food industry. Studies on characterizing the sensory properties of organic and inorganic acids are very limited. Reported studies are commonly on threshold, equi-sour and the time intensity values of...
Resource Type:: Dissertation
Full Text:: ., Nancy M., Leila S., Chuck S., Jolynne W., Newton Y., Carlos K., Paty G., Anne A., Alex L., Xiao-Lin

Identification of bacteria crucial to histamine formation and monitoring their occurrence and histamine accumulation in scombroid fish

Creator:: Kim, Shin-Hee
Abstract:: Bacterial histamine formation in mackerel and albacore was studied by inducing histamine in the muscles under controlled storage conditions. The optimum temperature for histamine formation was 25°C. The highest level of histamine detected was 283 mg/100 g in the 2-day stored mackerel; and 67.1 mg/100 g in the 6-day stored...
Resource Type:: Dissertation
Full Text:: of histamine, i.e., 270 mg/100 g (Clifford et al., 1989) and 500 mg/100 g (Russell and Maretic

Sensory evaluation and shelf-life modeling of ground coffee

Creator:: Briggs, Judith A.
Abstract:: Both consumer and descriptive analyses were used to study the shelf-life of packaged, roasted and ground coffee in order to evaluate the utility of using sensory data in a shelf life model, and to examine the ability of consumers to detect a difference between treated and control samples. Two types...
Resource Type:: Masters Thesis
Full Text:: changes to a stale coffee aroma at higher levels (M. Clifford, 1986b). Coffee Flavor When roasted

The Role of Ascorbic Acid, β-Cyclodextrins, and Alternative Substrates in Dictating Rates of Polyphenol Oxidase-Catalyzed Browning in Potato-Based Reaction Mixtures

Creator:: Jiang, Shu
Abstract:: Enzymatic browning is a consequence of a series of reactions initiated by polyphenol oxidase (PPO)-catalyzed quinone formation. Unwanted browning negatively affects food quality and lowers consumer acceptability. Thus, there is general interest in strategies to control enzymatic browning. Cyclodextrins are cyclic glucan oligosaccharides that form inclusion complexes with a number...
Resource Type:: Dissertation
Full Text:: . Critical Reviews in Food Science and Nutrition, 52, 213-248. Lim, J.-Y., Ishiguro, K., Kubo, I. 1999

Hop Kilning Temperature Sensitivity of Dextrin-Reducing Enzymes in Hops

Creator:: Rubottom, Lindsey N.
Abstract:: Kilning, which is the drying operation in hop cultivation, is a processing step that can have a tremendous impact on hop quality. Historically, hops have been dried at temperatures ranging from 140-155°F. In the last decade, growers have moved toward kilning hops at lower temperatures averaging between 125-140°F in the...
Resource Type:: Masters Thesis
Full Text:: , T.; Koichiro, K.; Yutaka, I.; Yuta, K.; Masayuki, S.; Yasuyuki, N.; Junji, W

ScholarsArchive@OSU

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

Gas chromatographic identification of chlorinated insecticides based on their U.V. degradation

Characterization of phenolics in Marion and Evergreen blackberries

Studies of aflatoxin B1 in rainbow trout (Salmo gairdneri) ;|b1. Carcinogenicity and chemical structure : 2. Tissue and subcellular distribution of 14C from aflatoxin B₁-14C

The effect of irradiation with ultraviolet light on chlorinated hydrocarbon insecticides : a review

Perceptual characteristics of selected acidulants by different sensory and multivariate methods

Identification of bacteria crucial to histamine formation and monitoring their occurrence and histamine accumulation in scombroid fish

Sensory evaluation and shelf-life modeling of ground coffee

The Role of Ascorbic Acid, β-Cyclodextrins, and Alternative Substrates in Dictating Rates of Polyphenol Oxidase-Catalyzed Browning in Potato-Based Reaction Mixtures

Hop Kilning Temperature Sensitivity of Dextrin-Reducing Enzymes in Hops

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

Creator

Contributor

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search