The Resource Succession of colonisation of surfaces with thermophilic bacilli : a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University, Loo Chia Mint

Succession of colonisation of surfaces with thermophilic bacilli : a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University, Loo Chia Mint

Label
Succession of colonisation of surfaces with thermophilic bacilli : a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University
Title
Succession of colonisation of surfaces with thermophilic bacilli
Title remainder
a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University
Statement of responsibility
Loo Chia Mint
Creator
Contributor
Author
Degree granting institution
Subject
Language
eng
Summary
Thermophilic bacilli, B. licheniformis E3COI, A. flavithermus (P2, T18C, T215G, B12 and T2) and G. stearothermophilus (20, 21A, D1, A1, P3 and BS) thrive at high temperatures with ability to form biofilm. The growth of biofilms of single species, is understood but interaction between different species is inknown. B. licheniformis often appears early in milk manufacturing plant while other thermophilic bacteria are detected later. This suggests that B. licheniformis may generate conditions that support growth of other species. Understanding this interaction may help in controlling thermophilic bacilli growth in a dairy manufacturing plant. This study investigated this interaction using a microtitre plate assay to quantify biofilm formation of the different species, individually, in combination and sequentially. It was found that enhanced growth could be seen with interactions of B. licheniformis and G. steaothermopnilus in reconstituted skimmed milk medium and was well supported with past research where G. stearothemophilus strains D1, P3 and A1 form completely difference biofilms. A laboratory reactor was used to investigate the strongest biofilm combination in an environment that represented conditions found in a dairy manufacturing plant. There was no evidence of B. licheniformis conditioning the surface for the growth of other species but there was evidence of interactions between some strains of thermophilic bacteria producing stronger biofilms than the individual strains. Hence, there may be a higher risk of contamination when mixed species are found in the dairy industry--Abstract
Cataloging source
PU
http://library.link/vocab/creatorName
Loo, Chia Mint
Degree
BFoodTech(Hons)
Dissertation year
2014
Granting institution
Massey University
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
bibliography
http://library.link/vocab/relatedWorkOrContributorName
  • Massey University
  • Massey University
http://library.link/vocab/subjectName
  • Thermophilic bacteria
  • Bacteria
  • Biofilms
  • Dairy microbiology
Label
Succession of colonisation of surfaces with thermophilic bacilli : a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University, Loo Chia Mint
Instantiates
Production
Note
At head of cover title: Massey University. Institute of Food, Nutritiona nd Human Health final year project report
Bibliography note
Includes bibliographical references
Carrier category
volume
Carrier MARC source
rdacarrier
Content category
text
Content type MARC source
rdacontent
Contents
Introduction -- Literature review. Background information ; Review of past and present literature ; Importance of study ; Theory -- Materials and methods. Source of bacterial isolates ; Type of materials ; Equipment ; Media preparation and storage ; Microtitre plate analysis ; Epi-fluroscence microscopy ; Statistical analysis -- Results and discussion. Microtitre plate assay ; Rotary disk reactor trials ; Epi-fluoroscence microscopy ; Impact of results -- Conclusions -- Recommendations
Dimensions
30 cm
Extent
ix, 40, xxv pages
Media category
unmediated
Media MARC source
rdamedia
Other physical details
colour illustrations
Label
Succession of colonisation of surfaces with thermophilic bacilli : a report presented in partial fulfillment of the requirements for the degree of Bachelor of Food Technology (Honours) of Massey University, Loo Chia Mint
Production
Note
At head of cover title: Massey University. Institute of Food, Nutritiona nd Human Health final year project report
Bibliography note
Includes bibliographical references
Carrier category
volume
Carrier MARC source
rdacarrier
Content category
text
Content type MARC source
rdacontent
Contents
Introduction -- Literature review. Background information ; Review of past and present literature ; Importance of study ; Theory -- Materials and methods. Source of bacterial isolates ; Type of materials ; Equipment ; Media preparation and storage ; Microtitre plate analysis ; Epi-fluroscence microscopy ; Statistical analysis -- Results and discussion. Microtitre plate assay ; Rotary disk reactor trials ; Epi-fluoroscence microscopy ; Impact of results -- Conclusions -- Recommendations
Dimensions
30 cm
Extent
ix, 40, xxv pages
Media category
unmediated
Media MARC source
rdamedia
Other physical details
colour illustrations

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