% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Saha:1046472,
author = {Saha, Debasish and Kumar, Sugam and Dubey, Purushottam S.
and Mata, Jitendra P. and Whitten, Andrew E. and
Kohlbrecher, Joachim and Frielinghaus, Henrich and Aswal,
Vinod K.},
title = {{C}ontrolling the {C}old-{S}et {G}elation of {B}ovine
{S}erum {A}lbumin {P}rotein using {A}lcohol and {I}onic
{S}urfactant},
journal = {Food hydrocolloids},
volume = {172},
issn = {0268-005X},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {FZJ-2025-03824},
pages = {111991},
year = {2026},
abstract = {Heating of globular protein solutions usually leads to
protein denaturation and subsequent gelation at high
temperatures. Under “cold gelation”, protein forms a gel
at a much lower temperature than its original gelation
temperature (TG), which can be achieved by modifying various
physicochemical conditions such as the pH of the solution,
the presence of salts, etc. In this study, we investigated
the cold gelation of Bovine Serum Albumin (BSA) protein
induced by ethanol and controlled by ionic surfactant, using
small-angle neutron scattering (SANS), dynamic light
scattering (DLS), and rheology The results show that the TG
of the protein with ethanol is systematically decreased as
compared to the that of pure BSA solutions (~80 ◦C),
reaching ~60 ◦C at 10 $wt\%$ ethanol, ~55 ◦C at 20
$wt\%$ and finally as low as ~38 ◦C in presence of 30
$wt\%$ ethanol in the solution. Rheo-logical measurements
demonstrate a significant strengthening of the gel network,
with the enhancement in storage modulus (G′) from ~20 Pa
at 0 $wt\%$ to ~250 Pa at 30 $wt\%$ ethanol. Structural
characterization reveals an increase in fractal dimension
with rising ethanol content, indicating denser and more
branched gel networks. Interestingly, the addition of the
anionic surfactant sodium dodecyl sulfate (SDS) inhibits the
alcohol-assisted cold gelation of BSA protein, depending
upon the relative amount of ethanol and SDS in solution. The
results are explained based on the interplay of interactions
in the protein, manipulated by the presence of alcohol,
elevated temperatures, and ionic surfactant. Our study
highlights the tunability of gelation pathways and offers
useful inputs for controlled protein gelation in biomaterial
and food industry.},
cin = {JCNS-FRM-II / MLZ / JCNS-4},
ddc = {640},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-4-20201012},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
doi = {10.1016/j.foodhyd.2025.111991},
url = {https://juser.fz-juelich.de/record/1046472},
}