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@ARTICLE{Romano:602185,
author = {Romano, Alon and Engelberg, Yizhaq and Landau, Meytal and
Lesmes, Uri},
title = {{A}lpha-lactalbumin amyloid-like fibrils for intestinal
delivery: {F}ormation, physiochemical characterization, and
digestive fate of capsaicin-loaded fibrils},
journal = {Food hydrocolloids},
volume = {136},
issn = {0268-005X},
address = {Amsterdam},
publisher = {Elsevier},
reportid = {PUBDB-2024-00511},
pages = {108248},
year = {2023},
abstract = {Engineering protein architectures offers numerous
opportunities to deliver consumers with added values yet
mandates careful screening of possible risks. This study
explores the fabrication of bovine alpha-lactalbumin (ALA)
amyloid-like fibrils (AF) for gastro-intestinal delivery of
capsaicin (CAP), a pungent compound which possesses health
beneficial virtues. Acidic incubation of ALA with CAP
accelerates formation of ALA-AF, as confirmed by
transmission electron microscope, with a size increase from
3.7 ± 0.4 nm to 175 ± 58 nm and a melting temperature
shift from T$_m$ = 61.8 °C to T$_m$ = 89.9 °C for native
ALA and ALA-AF entrapping 200 μM CAP, respectively. In
addition to encapsulation efficiency and loading capacity
measurements, this work provides evidence that fibrillation
attenuates the in vitro digestive proteolysis of ALA and
diminishes the levels of bioaccessible bioactive peptides by
an order of magnitude compared to native ALA. This is
accompanied by sustained release of 7.8 ± 1.7\% to 55.7 ±
12.3\% CAP under gastric and intestinal conditions. Overall,
this work presents a new possible avenue for designing
protein structures to entrap bioactive moieties along-side a
call to interrogate the possible ramifications to protein
digestion and consumer health.},
cin = {CSSB-F},
ddc = {640},
cid = {I:(DE-H253)CSSB-F-20230420},
pnm = {633 - Life Sciences – Building Blocks of Life: Structure
and Function (POF4-633)},
pid = {G:(DE-HGF)POF4-633},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001017491100001},
doi = {10.1016/j.foodhyd.2022.108248},
url = {https://bib-pubdb1.desy.de/record/602185},
}