Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion
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| 1. Verfasser: | |
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| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Düsseldorf
VDI-Verl.
2007
|
| Ausgabe: | Als Ms. gedr. |
| Schriftenreihe: | Fortschritt-Berichte VDI
Reihe 14, Landtechnik/Lebensmitteltechnik ; 127 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
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| 007 | t| | ||
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| 020 | |a 9783183127146 |9 978-3-18-312714-6 | ||
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| 100 | 1 | |a Müller-Merbach, Mareile |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Lactococcus lactis bacteriophages in milk systems |b thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |c Mareile Müller-Merbach |
| 250 | |a Als Ms. gedr. | ||
| 264 | 1 | |a Düsseldorf |b VDI-Verl. |c 2007 | |
| 300 | |a XXI, 135 S. |b Ill., graph. Darst. |c 21 cm | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Fortschritt-Berichte VDI : Reihe 14, Landtechnik/Lebensmitteltechnik |v 127 | |
| 500 | |a Zugl.: Hohenheim, Univ., Diss. | ||
| 650 | 0 | 7 | |a Hitzekonservierung |0 (DE-588)4297504-9 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Lactococcus lactis |0 (DE-588)4183661-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Milchprodukt |0 (DE-588)4235506-0 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Hydrostatischer Druck |0 (DE-588)4113982-3 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Bakteriophagen |0 (DE-588)4125508-2 |2 gnd |9 rswk-swf |
| 655 | 7 | |0 (DE-588)4113937-9 |a Hochschulschrift |2 gnd-content | |
| 689 | 0 | 0 | |a Milchprodukt |0 (DE-588)4235506-0 |D s |
| 689 | 0 | 1 | |a Lactococcus lactis |0 (DE-588)4183661-3 |D s |
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| 830 | 0 | |a Fortschritt-Berichte VDI |v Reihe 14, Landtechnik/Lebensmitteltechnik ; 127 |w (DE-604)BV000021889 |9 127 | |
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| 943 | 1 | |a oai:aleph.bib-bvb.de:BVB01-016244936 | |
Datensatz im Suchindex
| DE-BY-TUM_call_number | 0701 65 B 276 |
|---|---|
| DE-BY-TUM_katkey | 1616773 |
| DE-BY-TUM_location | Mag |
| DE-BY-TUM_media_number | 040071118473 |
| _version_ | 1820899120803479552 |
| adam_text | Table of Contents
Symbols and abbreviations XIII
Summary XVII
Zusammenfassung XIX
1 Introduction
1.1 Scope 1
1.2 Outline 1
2 Background
2.1 Virus 3
2.2 Bacteriophage 5
2.2.1 Multiplication cycles 6
2.2.2 Morphology and taxonomy of phages with focus on
Lactococcus lactis phages 9
2.2.3 Detection methods 13
2.3 Starter culture Systems and fermentation failure 17
2.3.1 Phage occurrence in the dairy 17
2.3.2 Culture rotation 18
2.3.3 Phage resistant Starter bacteria 19
2.4 Inactivation of bacteriophages 21
2.4.1 Inactivation byheattreatment 22
2.4.2 Inactivation by high pressure treatment 25
2.4.3 Inactivation by other physical means 28
2.4.4 Inactivation by chemical means 30
2.5 Modeling inactivation reactions 32
2.6 References 37
3 Kinetics of the Thermal Inactivation of the Lactococcus Lactis
Bacteriophage P008
Abstract 49
3.1 Introduction
3.2 Materials and methods 51
3.2.1 Phage and host strain 51
3.2.2 Thermal treatment 52
3.2.3 Determination of the phage titer
3.3 Results and discussion 52
3.3.1 Thermal inactivation of phage P008 in Ca M17 broth 52
3.3.2 Thermal inactivation of phage P008 in milk M
3.3.3 Formal kinetics ^
3.3.4 Dataanalysis x
3.3.5 Influenceofthemedium 59
3.4 Conclusions 59
fil
3.5 References
4 Screening of Heat Resistant Lactococcus Lactis Bacteriophages
Abstract 63
4.1 Introducöon M
4.2 Material and methods 65
4.2.1 Experimental procedure
4.2.2 Survey ^
4.2.3 Sample preparation ^
4.2.4 Heat treatment 66
4.2.5 Plaqueassay 67
4.2.6 Dataanalysis 67
4.3 Results and discussion
67
4.3.1 Screening of thermostability in L/actfs phages
4.3.2 Thermal inactivation kinetics of the particulaiiy heat
resistant phage P1532 70
4.4 Conclusion
4.5 References 7
5 Inactivation of Bacteriophages by Thermal and High Presstire Treatm^*1
Abstract
5.1 Introduction
5.2 Materials and methods 79
5.2.1 Phages and host 79
5.2.2 Thermal treatment 79
5.2.3 High pressure treatment 80
5.2.4 Determination of the phage titer 80
5.2.5 Non Iinear regression 81
5.3 Results and discussion 82
5.3.1 Phage inactivation by heat 82
5.3.2 Inactivation of phage by high pressure 84
5.3.3 Inactivation of phage by combined heat and high
pressure treatment 85
5.3.4 Modeling inactivation kinetics 86
5.3.5 Phage inactivation in dependency of p and T 88
5.4 Condusion 90
5.5 References 91
6 Envlronmental Factors for Phage Induced Fermentation Problems:
Replication and Adsorption of the Lactococcu» ImcHs Phage P008 as
Influenced by Temperatur« and pH
Abstract 94
6.1 Introduction 95
6.2 Materials and methods 96
6.2.1 Phage and host strain 96
6.2.2 Growthmedium 97
6.2.3 Incubation conditions 97
6.2.4 Plaqueassay 98
6.2.5 Multiplicity of infection 98
6.2.6 One step growth experiment 98
6.2.7 Adsorption assay 100
6.2.8 Growth curves 100
6.2.9 Software 100
6.3 Results and discussion 101
6.3.1 Latency period and average burst size 101
6.3.2 Adsorption 103
6.3.3 Extrapolation of growth 107
6.4 Conclusions 112
6.5 References 112
7 Diffusion of Bacteriophages in an Agar Gel and a Fermented Milk Matrix
Abstracl 115
7.1 Introduction 116
7.2 Materials and methods 117
7.2.1 Phage and host strain 117
7.2.2 Two chamber diffusion tube 118
7.2.3 Plaqueassay 119
7.2.4 Evaluation and diffusion coefficient 119
7.2.5 Photon correlation spectroscopy (PCS) 12°
7.3 Results and discussion 1
im
7.3.1 Phage diffusion in agar gel
191
7.3.2 Phage diffusion in quarg u
121
7.3.3 Influenceofthematrix
172
7.3.4 Phage dissemination by diffusion and progeny
193
7.3.5 Diffusion coefficients and hydrodynamic diameter UJ
7.4 Conclusion 123
124
7.5 References ™
8 Concluding Remarks
8.1 Phage induced fermentation failure as a present problem in the
126
dairy industry
8.2 Thermal phage inacüvation in the context of thermal effects in
milk 128
8.3 Possible mechanisms of phage inactivation by heat and high
pressure
8.4 Resume of results
8.5 Further needs for research
8.6 References
135
Appendix: High Pressure Processing Plant
|
| any_adam_object | 1 |
| author | Müller-Merbach, Mareile |
| author_facet | Müller-Merbach, Mareile |
| author_role | aut |
| author_sort | Müller-Merbach, Mareile |
| author_variant | m m m mmm |
| building | Verbundindex |
| bvnumber | BV023041407 |
| classification_rvk | VN 8001 |
| ctrlnum | (OCoLC)212376497 (DE-599)BVBBV023041407 |
| dewey-full | 637.141 |
| dewey-hundreds | 600 - Technology (Applied sciences) |
| dewey-ones | 637 - Processing dairy and related products |
| dewey-raw | 637.141 |
| dewey-search | 637.141 |
| dewey-sort | 3637.141 |
| dewey-tens | 630 - Agriculture and related technologies |
| discipline | Chemie / Pharmazie Agrar-/Forst-/Ernährungs-/Haushaltswissenschaft / Gartenbau |
| edition | Als Ms. gedr. |
| format | Book |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV023041407 |
| illustrated | Illustrated |
| indexdate | 2024-12-23T20:44:15Z |
| institution | BVB |
| isbn | 9783183127146 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-016244936 |
| oclc_num | 212376497 |
| open_access_boolean | |
| owner | DE-91G DE-BY-TUM DE-210 DE-83 |
| owner_facet | DE-91G DE-BY-TUM DE-210 DE-83 |
| physical | XXI, 135 S. Ill., graph. Darst. 21 cm |
| publishDate | 2007 |
| publishDateSearch | 2007 |
| publishDateSort | 2007 |
| publisher | VDI-Verl. |
| record_format | marc |
| series | Fortschritt-Berichte VDI |
| series2 | Fortschritt-Berichte VDI : Reihe 14, Landtechnik/Lebensmitteltechnik |
| spellingShingle | Müller-Merbach, Mareile Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion Fortschritt-Berichte VDI Hitzekonservierung (DE-588)4297504-9 gnd Lactococcus lactis (DE-588)4183661-3 gnd Milchprodukt (DE-588)4235506-0 gnd Hydrostatischer Druck (DE-588)4113982-3 gnd Bakteriophagen (DE-588)4125508-2 gnd |
| subject_GND | (DE-588)4297504-9 (DE-588)4183661-3 (DE-588)4235506-0 (DE-588)4113982-3 (DE-588)4125508-2 (DE-588)4113937-9 |
| title | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |
| title_auth | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |
| title_exact_search | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |
| title_full | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion Mareile Müller-Merbach |
| title_fullStr | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion Mareile Müller-Merbach |
| title_full_unstemmed | Lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion Mareile Müller-Merbach |
| title_short | Lactococcus lactis bacteriophages in milk systems |
| title_sort | lactococcus lactis bacteriophages in milk systems thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |
| title_sub | thermalhydrostatic inactivation and proliferation by means of propagation and diffusion |
| topic | Hitzekonservierung (DE-588)4297504-9 gnd Lactococcus lactis (DE-588)4183661-3 gnd Milchprodukt (DE-588)4235506-0 gnd Hydrostatischer Druck (DE-588)4113982-3 gnd Bakteriophagen (DE-588)4125508-2 gnd |
| topic_facet | Hitzekonservierung Lactococcus lactis Milchprodukt Hydrostatischer Druck Bakteriophagen Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016244936&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV000021889 |
| work_keys_str_mv | AT mullermerbachmareile lactococcuslactisbacteriophagesinmilksystemsthermalhydrostaticinactivationandproliferationbymeansofpropagationanddiffusion |