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  1. Book ; Thesis: Fermentation of whey permeate to lactic acid in high cell density bioreactors

    Tejayadi, Susy

    1990  

    Author's details by Susy Tejayadi
    Size 2 Mikrofiches
    Publishing country United States
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Urbana-Champaign, Ill., Univ., Diss., 1989
    Note Umfang des Ms.: IX, 126 S. : Ill., graph. Darst. - Mikroform erschienen beiUMI, Ann Arbor, Mich.
    HBZ-ID HT004980603
    Database Catalogue ZB MED Nutrition, Environment, Agriculture

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    Shelf markLoan statusLocation
    LM-Fiche 1338 order for loan Geschlossenes Magazin (U2)

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  2. Article ; Online: Inactivation of Salmonella, Shiga Toxin-producing E. coli, and Listeria monocytogenes in Raw Diet Pet Foods Using High-Pressure Processing.

    Lee, Alvin / Maks-Warren, Nicole / Aguilar, Viviana / Piszczor, Karolina / Swicegood, Brittany / Ye, Mu / Warren, Joshua / O'Neill, Edward / Fleck, Mark / Tejayadi, Susy

    Journal of food protection

    2023  Volume 86, Issue 9, Page(s) 100124

    Abstract: Pet food formulated with raw meat can pose health risks to pets and humans. High-pressure processing (HPP) was evaluated to achieve a 5-log reduction ofSalmonella,E. coliSTEC, andL. monocytogenesin commercial raw pet foods and maintain a 5-log reduction ... ...

    Abstract Pet food formulated with raw meat can pose health risks to pets and humans. High-pressure processing (HPP) was evaluated to achieve a 5-log reduction ofSalmonella,E. coliSTEC, andL. monocytogenesin commercial raw pet foods and maintain a 5-log reduction throughout post-HPP storage.Three formulation types that varied in the amounts of striated meat, organ meat, bone, seeds, and other ingredients (fruits, vegetables, and minor ingredients) designated as A-, S-, and R-formulations were used. Eight raw diet pet foods, consisting of three beef formulations (A-, S- and R-Beef), three chicken formulations (A-, S-, and R-Chicken), and two lamb formulations (A- and S-Lamb), were inoculated with 7 log CFU/g cocktails ofSalmonella,E. coliSTEC orL. monocytogenes, HPP at 586 MPa for 1-4 min, and stored refrigerated (4°C) or frozen (-10 to -18°C) for 21 days with microbiological analyses at various time intervals. A- formulations (20-46% meat, 42-68% organs, 0.9-1.3% seeds, and 10.7-11.1% fruits, vegetables, and minor ingredients) inoculated withSalmonellaand treated at 586 MPa for at least 2 min achieved a 5-log reduction 1 day post-HPP and maintained that inactivation level during frozen storage. A- and S-formulations inoculated withE. coliSTEC and treated at 586 MPa for at least 2 min achieved a 5-log reduction from day 6 of frozen storage. L. monocytogeneswas more HPP resistant thanSalmonellaandE. coliSTEC.S-formulations containing chicken or beef and stored frozen post-HPP had lower inactivation of L. monocytogenes compared to A-formulations containing chicken or beef. S-Lamb had higher frozen storage inactivation (5.95 ± 0.20 log CFU/g) compared to chicken (2.52 ± 0.38 log CFU/g) or beef (2.36 ± 0.48 log CFU/g). HPP coupled with frozen storage time was effective in achieving and maintaining a 5-log reduction ofSalmonellaandE. coliSTEC whileL. monocytogeneswas more resistant and requires further optimization to achieve a 5-log reduction.
    MeSH term(s) Cattle ; Animals ; Sheep ; Humans ; Food Handling ; Listeria monocytogenes ; Colony Count, Microbial ; Food Microbiology ; Diet ; Shiga-Toxigenic Escherichia coli ; Salmonella ; Shiga Toxins
    Chemical Substances Shiga Toxins
    Language English
    Publishing date 2023-07-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 243284-5
    ISSN 1944-9097 ; 0362-028X
    ISSN (online) 1944-9097
    ISSN 0362-028X
    DOI 10.1016/j.jfp.2023.100124
    Database MEDical Literature Analysis and Retrieval System OnLINE

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