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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Classification, grouping and identification of bacteria isolated from food and the environment

Ternström, Anders. January 1992 (has links)
Thesis (doctoral)--Lund University, 1992. / Added t.p. with thesis statement inserted.
32

Classification, grouping and identification of bacteria isolated from food and the environment

Ternström, Anders. January 1992 (has links)
Thesis (doctoral)--Lund University, 1992. / Added t.p. with thesis statement inserted.
33

Numerical simulation of thermal transport in a high hydrostatic pressure food processing vessel

Khurana, Meenakshi. January 2008 (has links)
Thesis (M.S.)--Rutgers University, 2008. / "Graduate Program in Food Science." Includes bibliographical references (p. 101-106).
34

Strategies for the Prevention of Potato Spoilage During Storage and the Discovery of the Antimicrobial Activity of Potatoes

Rioux, Amanda January 2007 (has links) (PDF)
No description available.
35

The combined use of modified atmosphere packaging (MAP) and glucose oxidase (GOX) dipping solutions to control melanosis in shrimp /

Wang, Xin. January 1992 (has links)
No description available.
36

Utilization of low molecular weight substrates by psychrotrophic meat spoilage organisms

Gauthier, Elisabeth January 1990 (has links)
No description available.
37

Reformulation packaging studies to delay staling in a bakery product

Assouad, Marie-Christine January 1996 (has links)
No description available.
38

Clostridium botulinum toxin development in refrigerated reduced oxygen packaged Atlantic croaker (Micropogonias undulatus)

Rheinhart, Courtney Elizabeth 25 May 2007 (has links)
The purpose of this study was to determine the effects of storage temperature and film oxygen transmission rate (OTR) on toxin development by Clostridium botulinum in refrigerated raw vacuum packaged croaker fillets, and to determine if toxin development precedes microbiological and/or organoleptic spoilage. Raw croaker fillets were vacuum packaged in oxygen-permeable films (OTR of 10,000 cc/m2/24hr or 3,000 cc/m2/24hr) and stored at either 4ºC or 10ºC. Type 83F, 17 Type B, Beluga, Minnesota, and Alaska nonproteolytic strains of C. botulinum were used to inoculate fish prior to vacuum packaging. At both temperatures, microbial spoilage preceded toxin production in fillets vacuum packaged in both film types. At 4ºC microbial spoilage occurred after approximately 7 days for fillets vacuum packaged in the 10,000 cc/m2/24hr OTR film and after 8 days for fillets vacuum packaged in the 3,000 cc/m2/24hr OTR film. However, toxin was not detected until day 8. At 10ºC microbial spoilage occurred after approximately 3 days for fillets vacuum packaged in the 10,000 cc/m2/24hr OTR film, while toxin production occurred on day 5. For fillets vacuum packaged in the 3,000 cc/m2/24hr OTR film microbial spoilage occurred after 4 days. However toxin production did not occur until day 6. In contrast, at both temperatures toxin production preceded or coincided with organoleptic spoilage in fillets vacuum packaged in both film types. At 4ºC organoleptic spoilage occurred after 10 days for fillets packaged in the 10,000 cc/m2/24hr OTR film and after 9 days in the 3,000 cc/m2/24hr OTR film, while toxin production occurred on day 8. At 10ºC organoleptic spoilage occurred after 6 days for fillets packaged in the 10,000 cc/m2/24hr OTR film, and toxin was detected on day 5. For fillets packaged in the 3,000 cc/m2/24hr OTR film and stored at 10ºC, organoleptic spoilage occurred after 6 days, while toxin production occurred on day 6. Although toxin production preceded or coincided with organoleptic spoilage in both film types, this may have been because samples were presented on ice, which could have masked potential odors. This study shows that there are not significant differences between these film types when it comes to microbial and organoleptic spoilage. Therefore lower OTR films, such as 3,000 cc/m2/24hr film, may be used to vacuum package Atlantic croaker. / Master of Science in Life Sciences
39

Pearl millet lipids: composition and changes during storage

Lai, Christopher Chun-Ching. January 1979 (has links)
Call number: LD2668 .T4 1979 L35 / Master of Science
40

The use of ultraviolet radiation as a nonthermal treatment for the inactivation of alicyclobacillus acidoterrestris spores in water, wash water from a fruit processing plant and grape juice concentrate

Groenewald, W.H., Gouws, P.A., Cilliers, F.P., Witthuhn, R.C. January 2013 (has links)
Published Article / Alicyclobacillus acidoterrestris is a non-pathogenic, spore-forming bacterium that can survive the commercial pasteurisation processes commonly used during fruit juice production. Surviving bacterial endospores germinate, grow and cause spoilage of high acid food products. Fruit juices can be treated using ultraviolet light (UV-C) with a wavelength of 254 nm, which has a germicidal effect against micro-organisms. In this study, A. acidoterrestris was inoculated into water, used wash water from a fruit processing plant and grape juice concentrate. Ultraviolet dosage levels (J L-1) of 0, 61, 122, 183, 244, 305 and 367 J L-1 were applied using a novel UV-C turbulent flow system. The UV treatment method was shown to reliably achieve in excess of a 4 log10 reduction (99.99%) per 0.5 kJ L-1 of UV-C dosage in all the liquids inoculated with A. acidoterrestris. The applied novel UV technology could serve as an alternative to thermal treatments of fruit juices for the inactivation of Alicyclobacillus spores as well as in the treatment of contaminated wash water used in fruit processing.

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