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Roles of microorganisms in the deterioriation of rockfish

Creator:: Lobben, J. C. and Lee, J. S.
Abstract:: Seven species of microorganisms indigenous to fish were inoculated into sterile fish muscle, obtained from Sebastodes alutus and Sebastalobus alascanus, and the production of total volatile acids (TVA) and total volatile bases (TVB) was determined during storage at 1 C. No production of TVA and TVB was noted in sterile...
Resource Type:: Capstone Project

Volatile compounds from thermally oxidized methyl oleate

Creator:: Withycombe, Donald A., Libbey, L. M., and Lindsay, R. C.
Abstract:: Thermal oxidation of methyl oleate was studied over a range of temperatures from 50 C to 150 C for periods of time up to 30 min. Degradation was quantitatively followed by gas liquid chromatography (GLC) and liquid scintillation counting of the products of methyl oleate-U-14C heated under a stream of...
Resource Type:: Capstone Project

Heat-induced compounds in strawberries

Creator:: Sloan, Jerry L.
Abstract:: Dimethyl sulfide, acetaldehyde, isobutyraldehyde, furan, 2-furaldehyde, 2-acetyl furan, and ethyl furoate were produced when pureed strawberries were heated to 120° C. for 30 minutes. Shorter heating periods were sufficient to produce the first three compounds. With the exception of acetaldehyde, none of the heat-induced compounds were detected in unheated, pureed...
Resource Type:: Capstone Project

Lipid-protein interactions : autoxidation studies involving freeze-dried methyl linolenate-gelatin foams

Creator:: Wehr, H. Michael and Sinnhuber, Russell O.
Abstract:: Studies involving freeze-dried methyl linolenate-gelatin foams indicate that the extent of lipid-protein interaction corresponds to the degree of autoxidation of the lipid fraction. It appears that approximately 11% of the malonaldehyde as defined by the 2-thiobarbituric acid test is firmly bound to the protein. The induction period of autoxidation is...
Resource Type:: Capstone Project

Influence of free fatty acids on sweet cream butter flavor

Creator:: McDaniel, Mina R., Sather, Lois A., and Lindsay, R. C.
Abstract:: A threshold pattern for the even-numbered free fatty acids (FFA) in butter depended on chain-length. Butyric acid had the lowest total average flavor threshold (AFT) of the more volatile FFA, and the total AFT values increased as chain-length increased through hexanoic and octanoic acids. A soapy after-taste predominated at and...
Resource Type:: Capstone Project

Inhibition of Pseudomonas species by hydrogen peroxide producing Lactobacilli

Creator:: Price, Robert James and Lee, J. S.
Abstract:: Eighty-one microbial species isolated from seafoods and other marine sources were examined to determine the extent of interactions among these species. Spot-plates, cross-plates, and concurrent growth experiments at 7, 15, 20, and 30 C indicated that Lactobacillus species were capable of inhibiting other microorganisms. Lactobacillus species isolated from oysters and...
Resource Type:: Capstone Project

The Incorporation of Novel Water-Soluble Potato Protein Extract in Pacific whiting (Merluccius productus) Fillets Through Brine Injection Technology to Improve Quality

Creator:: Pasewark, George D.
Abstract:: Pacific whiting (Merluccius productus) is one of the most abundant fisheries on the American west coast. However, these fish are historically underutilized due to quality issues resulting from fillet softening that occurs as a result of both endogenous and exogenous (Myxosporidian parasite infection) cathepsin protease action during either storage (cathepsin...
Resource Type:: Masters Thesis

Cleaning and sanitizing agents for seafood processing plants [1973]

Creator:: Lee, Jong S. and Oregon State University. Extension Service/Marine Advisory Program
Abstract:: Published April 1973. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
Resource Type:: Technical Report

Color and pigment analyses in fruit products

Creator:: Wrolstad, Ronald E. and Oregon State University. Agricultural Experiment Station
Abstract:: Methods are described for making the following determinations in fruits and processed fruit products: anthocyanin pigment content, color density, polymeric color, browning, turbidity, and anthocyanin degradation index. Tables list the anthocyanins of common fruits, their molecular weights, molar absorbances, and wavelengths of maximum absorption. Thirty-one references are given.
Resource Type:: Technical Report

ScholarsArchive@OSU

Roles of microorganisms in the deterioriation of rockfish

Volatile compounds from thermally oxidized methyl oleate

Heat-induced compounds in strawberries

Lipid-protein interactions : autoxidation studies involving freeze-dried methyl linolenate-gelatin foams

Influence of free fatty acids on sweet cream butter flavor

Inhibition of Pseudomonas species by hydrogen peroxide producing Lactobacilli

The Incorporation of Novel Water-Soluble Potato Protein Extract in Pacific whiting (Merluccius productus) Fillets Through Brine Injection Technology to Improve Quality

Cleaning and sanitizing agents for seafood processing plants [1973]

Color and pigment analyses in fruit products

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