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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la800794x
|2 doi
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|a pubmed25n0601.xml
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|a (DE-627)NLM180317571
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|a (NLM)18564865
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Wiacek, Agnieszka Ewa
|e verfasserin
|4 aut
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|a Effect of temperature on n-tetradecane emulsion in the presence of phospholipid DPPC and enzyme lipase or phospholipase A2
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 15.08.2008
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|a Date Revised 21.11.2013
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Zeta potentials and effective diameters of n-tetradecane emulsions in 1 M ethanol were investigated in the presence of 1,2-dipalmitoyl- sn-glycero-3-phosphocholine (DPPC) (1 mg/100 mL), Candida cylindracea lipase (CCL), and phospholipase PLA2 (1 mg/100 mL) at 20, 37, and 45 degrees C. The enzyme was added at the beginning of mechanical emulsion homogenization or 1 min before the end of stirring for 10 min at 10,000 rpm. It was found that DPPC decreases the negative zeta potentials at all three temperatures. The decrease was largest at 20 degrees C and smallest at 45 degrees C. The influence of the enzymes on the zeta potentials depended on the enzyme kind, time of its injection, and temperature. More negative values of the zeta potentials relative to n-C14H30/DPPC droplets were obtained if the lipase was present. Generally, the effective diameters correlate with the zeta potentials, i.e., lower zeta potential corresponds with bigger effective diameter. Possible reasons for the observed changes of the measured parameters are discussed
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Alkanes
|2 NLM
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|a Emulsions
|2 NLM
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|a Solutions
|2 NLM
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|a n-tetradecane
|2 NLM
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|a 03LY784Y58
|2 NLM
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|a 1,2-Dipalmitoylphosphatidylcholine
|2 NLM
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|a 2644-64-6
|2 NLM
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|a Ethanol
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|a 3K9958V90M
|2 NLM
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|a Lipase
|2 NLM
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|a EC 3.1.1.3
|2 NLM
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|a Phospholipases A2
|2 NLM
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| 650 |
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|a EC 3.1.1.4
|2 NLM
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| 700 |
1 |
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|a Holysz, Lucyna
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chibowski, Emil
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 24(2008), 14 vom: 15. Juli, Seite 7413-20
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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| 773 |
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|g volume:24
|g year:2008
|g number:14
|g day:15
|g month:07
|g pages:7413-20
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|u http://dx.doi.org/10.1021/la800794x
|3 Volltext
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|h 7413-20
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