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Determination of dimethylamine in barley malt

Creator:: Yoo, Lee-joung
Abstract:: Dimethylamine (DMA), in addition to the alkaloids hordenine and gramine, has been suggested as a potential precursor of nitrosodimethylamine (NDMA) in malt. Analytical procedures were adopted and applied to extract and quantify DMA from malt, green malt, malt roots and raw barley. Ground malt was extracted at room temperature with...
Resource Type:: Masters Thesis
Full Text:: exhibited a linear relationship between DMA concentration and GC peak height within a given range. The

Kinetic properties and characterization of purified proteases from Pacific whiting (Merluccius productus)

Creator:: Wu, JuWen
Abstract:: Kinetic properties of the two proteases, causing textural degradation of Pacific whiting (Merluccius productus) during heating, were compared and characterized with the synthetic substrate, Z-Phe-Arg-NMec. Pacific whiting P-I and P-II showed the highest specificity on Z-Phe-Arg-NMec, specific substrate for cathepsin L. The K [subscript m] of preactivated P-I and P-II...
Resource Type:: Masters Thesis
Full Text:: by preactivating the enzyme at a range of pH 5.5 to 7.5. The highest activation rate for both

Evaluation of zebrafish (Brachydanio rerio) as a model for carcinogenesis

Creator:: Tsai, Hsi-Wen
Abstract:: Zebrafish (Brachydanio rerio) are small, freshwater teleost fishes in the family Cyprinidae, the true minnows. They are native to the tropical latitudes of India, but have become widespread through their use as aquarium fish and as models for several branches of biological research. Their ease of rearing, short generation time,...
Resource Type:: Dissertation
Full Text:: prevent its use as a model for environmental monitoring, however, is its narrow range of temperature

Analytical approach to the quantitative analysis of silicon in plants : its application to plant silica extraction

Creator:: Boone, Carmen E.
Abstract:: The literature available on the silica content of herbaceous biomass, and its relative mobility in leaching/extraction systems, includes studies that have employed several different methods for silica quantification. This makes comparison of the data difficult. The objective of this thesis research was to determine the quantitative relationships between the measured...
Resource Type:: Masters Thesis
Full Text:: in (29)) and on the surface of leaves and other parts of the plant (37). The excessive accumulation

Chemical analysis of acid precipitated colloid of ripe Bartlett pear juice

Creator:: Chang, Yih Hermon
Resource Type:: Masters Thesis
Full Text:: Mechanism of Orange Juice 11 Plant Phenolics 11 Tannins 14 Phenolics and Protein interactions 15

Extraction of lentil proteins and their use in supplementation of bread

Creator:: Idris, Nor Aini
Abstract:: The purpose of this study was to extract proteins from lentils for use in bread making to improve nutritional quality of bread. Three solvents, distilled water, 0.7 M NaCl and 0.05 M NaOH solutions, were used for extraction. Extractions were done at an alkaline pH near 10 for 30 min....
Resource Type:: Masters Thesis
Full Text:: Effect of lentil protein supplementation on crumb and crust color of breads. 37 8 Hunter color values

Salt and polyelectrolyte affect on food colloid function : polygalacturonic acid and egg albumen case studies

Creator:: Chen, Chi-Shen
Abstract:: The primary purpose of this study was to try to (1) provide information on the chemical nature, including turbidity formation, of polygalacturonic acid in different concentrations of NaCl solution. (2) use turbidity formation characteristics to develop an assay for determining the activities polygalacturonic acid depolymerases by using a polyelectrolyte. (3)...
Resource Type:: Dissertation
Full Text:: ...........................................................................................................37 4 EFFECT OF NACL ON THE HEAT AGGREGATIONS OF EGG WHITE PROTEINS

The influence of enzymes on color deterioration of strawberry juice and concentrate

Creator:: Lee, Dai-lih Doris
Resource Type:: Masters Thesis
Full Text:: storage-absorbance at 420 nm of bisulfite treated sample. 37 4 Browning in strawberry concentrate

Proteolytic activity in Pacific shrimp (Pandalus jordani) processing waste; distribution, effects on muscle proteins, and partial characterization

Creator:: Decker, Carl David
Abstract:: Proteases present in shrimp processing waste are factors in the technology of shrimp. The distribution of proteolytic activity in shrimp parts was determined using hemoglobin and casein as substrates. The effects of various parameters upon activity of proteases in the inedible portion were determined using muscle protein as a substrate....
Resource Type:: Dissertation
Full Text:: 18 20 21 21 22 23 23 24 24 24 24 29 31 37 37 37 40 40 46 49 51 TABLE OF

Lipid hydrolysis and oxidation development in frozen mackerel (Scomber scombrus): Effect of a high hydrostatic pressure pre-treatment

Creator:: Vázquez, Manuel, Torres, J. Antonio, Gallardo, José M., Saraiva, Jorge A., and Aubourg, Santiago P.
Abstract:: This work focused on assessing lipid damage during the storage of frozen Atlantic mackerel (Scomber scombrus) subjected to a high hydrostatic pressure (HHP) treatment (150, 300, 450 MPa with holding times of 0.0, 2.5, and 5.0 min) prior to freezing. The extent of lipid hydrolysis (free fatty acids) and oxidation...
Resource Type:: Article
Full Text:: : saubourg@iim.csic.es, +34986292762 (fax), +34986231930 (phone) 36 37 2 ABSTRACT 1 This work

ScholarsArchive@OSU

Determination of dimethylamine in barley malt

Kinetic properties and characterization of purified proteases from Pacific whiting (Merluccius productus)

Evaluation of zebrafish (Brachydanio rerio) as a model for carcinogenesis

Analytical approach to the quantitative analysis of silicon in plants : its application to plant silica extraction

Chemical analysis of acid precipitated colloid of ripe Bartlett pear juice

Extraction of lentil proteins and their use in supplementation of bread

Salt and polyelectrolyte affect on food colloid function : polygalacturonic acid and egg albumen case studies

The influence of enzymes on color deterioration of strawberry juice and concentrate

Proteolytic activity in Pacific shrimp (Pandalus jordani) processing waste; distribution, effects on muscle proteins, and partial characterization

Lipid hydrolysis and oxidation development in frozen mackerel (Scomber scombrus): Effect of a high hydrostatic pressure pre-treatment

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