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Home > Journals > Biochemistry and Cell Biology > List of Issues > Volume 95, Number 1, February 2017 > Protein–surfactant interactions between bovine lactoferrin and sophoro...
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Protein–surfactant interactions between bovine lactoferrin and sophorolipids under neutral and acidic conditions1
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Kentaro Matsumiya,a Yasushi A. Suzuki,b Yoshihiko Hirata,b Yuko
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a Laboratory of Quality Analysis and Assessment, Division of Agronomy and Horticultural Science,
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Graduate School of Agriculture, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
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b Lactoferrin Laboratory, Saraya Co., Ltd., 2-2-8 Yuzato, Higashisumiyoshi-ku, Osaka 546-0013, Japan.
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Corresponding author: Kentaro Matsumiya (email:
[email protected]).
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Published on the web 19 January 2017. Received March 30, 2016. Accepted October 16, 2016.
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Biochemistry and Cell Biology, 2017, 95(1): 126-132, https://doi.org/10.1139/bcb-2016-0057
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1 This Article is part of a Special Issue from the XIIth Lactoferrin Conference.
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Nambu,a Yasuki Matsumura a
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ABSTRACT To understand the protein–surfactant interactions between naturally derived sophorolipids (SLs) and bovine lactoferrin (bLf), we carried out spectroscopic, microscopic, and biochemical experiments under weakly acidic and neutral pH conditions. Particle size analysis, microscopy, and enzymatic digestion indicated that bLf and SLs interact with each other to form sheet-like and small aggregated structures reflecting the original self-organization of SLs at pH 5.0 and 7.0, respectively. Circular dichroism (CD) showed that SLs did not significantly affect the secondary structure of bLf.
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Keywords: lactoferrin, sophorolipids, protein–surfactant interaction, complex, electrostatic interaction
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