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Content Provider | World Health Organization (WHO)-Global Index Medicus |
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Author | Kim, Jinkyung Miller, Cortney M. Shepherd, Marion W. Jiang, Xiuping Liu, Xiaohua |
Description | Country affiliation: United States Author Affiliation: Kim J ( Department of Food, Nutrition, and Packaging Sciences, Clemson University, Clemson, SC 29634-0316, USA.) |
Abstract | Both autoclaving and dry-heat treatments were applied to dairy manure-based compost to achieve target populations of indigenous microorganisms. A 3 strain-mixture of Escherichia coli O157:H7 of ca. 2 log CFU/g was inoculated into acclimated autoclaved compost (AAC) and dry heat-treated compost (DHTC) with different moistures, and stored at 8, 22, or 30 °C. Only selected groups of microorganisms grew in AAC during acclimation, whereas the relative ratio of each group of microorganisms was maintained in DHTC after heat treatment. E. coli O157:H7 grew more in AAC than DHTC in the presence of same level of indigenous mesophiles. However, control compost (no heat treatment) did not support E. coli O157:H7 growth. Our results revealed that both the type and population of indigenous microorganisms is critical for suppressing E. coli O157:H7 growth in compost, and dry-heat treatment can result in a compost product which resembles cured compost with different levels of indigenous microorganisms. |
ISSN | 09608524 |
Issue Number | 20 |
Volume Number | 102 |
e-ISSN | 18732976 |
Journal | Bioresource Technology |
Language | English |
Publisher | Elsevier |
Publisher Date | 2011-10-01 |
Publisher Place | Great Britain (UK) |
Access Restriction | Subscribed |
Subject Keyword | Escherichia Coli O157 Growth & Development Soil Base Sequence Dna Primers Electrophoresis, Polyacrylamide Gel Hot Temperature Polymerase Chain Reaction Rna, Ribosomal, 16s Genetics Journal Article Research Support, Non-u.s. Gov't Research Support, U.s. Gov't, Non-p.h.s. Discipline Bioresource |
Content Type | Text |
Resource Type | Article |
Subject Domain (in MeSH) | Bacteria Nucleic Acids, Nucleotides, and Nucleosides Complex Mixtures Investigative Techniques Physical Phenomena Chemical Phenomena |
Subject | Bioengineering Renewable Energy, Sustainability and the Environment Waste Management and Disposal Environmental Engineering Medicine |
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