A kinetic study of the formation of β-cyclodextrin complexes with monomolecular films of fatty acids and glycerides spread at the air/water interface

Alahverdjieva, V.S.; Ivanova, М.; Verger, Robert; Panaı̈otov, I.

doi:10.1016/j.colsurfb.2005.01.003

Cited by 17 publications

(13 citation statements)

References 17 publications

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“…FA acyl chains are non-polar and have a cross-sectional diameter of *4.0 Å [17], which would likely facilitate their inclusion in the hydrophobic cavity (diameter = 6-6.5 Å ) of bCD. This assertion is supported by several experimental studies, which have shown that bCD can form complexes with lipids containing single or double alkyl chains of variable length [18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 53%

β‐Cyclodextrin‐Mediated Removal of Soy Phospholipids from the Air–Water Interface

Arora

Damodaran

2010

J Americ Oil Chem Soc

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Binding of soy phosphatidylcholine (PC) and phosphatidylinositol (PI) with b-cyclodextrin (bCD) was studied using a spread monolayer technique at the airwater interface. First, surface pressure (p) versus surface concentration (C) isotherms of both PC and PI were characterized by forming spread monolayers on an aqueous subphase. PC and PI monolayers reached saturation at C of 1.98 and 3.24 lmol/m 2 , respectively, at 25°C. Subsequently, desorption of PC or PI from the spread monolayer in the presence of 2-14 mM bCD in the subphase was studied by measuring changes in p of monolayer. This desorption was indicative of a complex formation between bCD and PC or PI. The amount of PC or PI bound to bCD was determined by converting the net change in p to C by using p-C isotherms. From the saturated monolayers at the air water-interface, approximately 30% of PC and 50% of PI could be removed by 14 mM bCD. It was calculated that the free energy change required to transfer a PL from the monolayer at air-water interface to the aqueous phase in presence of bCD was decreased by 6-7 kcal/mol. Hydrolysis of PC in the monolayer by phospholipase A 2 (PLA 2 ) improved extraction efficiency of bCD. By incorporating 2.29 lM PLA 2 and 10 mM bCD in subphase, up to 80% of PC monolayer could be desorbed from the air-water interface. These results are discussed in terms of the potential use of bCD to remove PLs bound to soy protein.

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Section: Introductionmentioning

confidence: 53%

β‐Cyclodextrin‐Mediated Removal of Soy Phospholipids from the Air–Water Interface

Arora

Damodaran

2010

J Americ Oil Chem Soc

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“…A detailed theoretical approach describing the kinetics of formation and solubilization of the CD-P complex was recently developed [16]. We prefer hereby to interpret the data A(t) (curves 2 and 3 in Fig.…”

Section: Monolayermentioning

confidence: 99%

“…In order to solubilize the water insoluble lipolytic products, a large excess of ␤-CD as selective lipolytic products acceptor (see Fig. 1A) has been used [16,24].…”

Section: Monolayermentioning

confidence: 99%

“…3 The solubilization fluxesˇandˇ0 were obtained experimentally from data A(t) and the following experimental form of the equation of mass conservation at the interface A(t) = A 0ˇ( t) + A iˇ( t − t i ), where A 0 is the area of the substrate monolayer initially present in the reaction compartment; A i is the contribution of i area portions of substrate monolayer supplied progressively by the moving barrier from the reservoir to the reaction compartment in order to maintain constant the surface pressure [16]. The obtained results for p (t) from Eq.…”

Section: Monolayermentioning

confidence: 99%

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Comparative study of lipolysis by PLA2 of DOPC substrates organized as monolayers, bilayer vesicles and nanocapsules

Mircheva¹,

Minkov²,

Ivanova³

et al. 2008

Colloids and Surfaces B: Biointerfaces

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“…Phospholipid MF (Fig. 1, D) could be regarded as a "half" of the TLF and was used for a long time as a model system for studying the interactions between membrane components with different agents and ions presenting in the liquid subphase [15,[26][27][28][29][30].…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Influence of steroid hormone progesterone on the properties of phosphatidyl serine monolayers and thin liquid films

Georgiev¹,

Georgiev²,

Lalchev³

2007

Biophysical Chemistry

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT1 Influence of Steroid Hormone Progesterone on the Properties of Phosphatidyl Serine Monolayers and Thin Liquid FilmsGeorgi D. Georgiev, Georgi As. Georgiev, Z. Lalchev* Sofia University "St. Kl. Ohridski", Biological Faculty, Department of Biochemistry, 8Dragan Tsankov Str. , 1164 Sofia, Bulgaria *-corresponding author E-mail: lalchev@biofac.uni-sofia.bg A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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A kinetic study of the formation of β-cyclodextrin complexes with monomolecular films of fatty acids and glycerides spread at the air/water interface

Cited by 17 publications

References 17 publications

β‐Cyclodextrin‐Mediated Removal of Soy Phospholipids from the Air–Water Interface

β‐Cyclodextrin‐Mediated Removal of Soy Phospholipids from the Air–Water Interface

Comparative study of lipolysis by PLA2 of DOPC substrates organized as monolayers, bilayer vesicles and nanocapsules

Influence of steroid hormone progesterone on the properties of phosphatidyl serine monolayers and thin liquid films

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