Zein Monolayers: Characterization and Interaction with (Bio)surfactants.

ABSTRACT: Zein is the main protein of corn seeds, which is often employed in food packaging and as a model of keratin. In this study, zein monolayers were deposited from nonconventional solvents: aqueous ethanol and acetic acid, on pure water that was later exchanged for 1% (bio)surfactant solutions: SDS, CTAB, Triton X-100, and the saponin-rich plant extracts of soapwort (Saponaria officinalis L.) and cowherb (Saponaria vaccaria [P. Mill.] Rauschert), as well as Quillaja bark saponins (QBS). The monolayers on pure water could be reversibly compressed up to ∼47 mN/m. On the basis of neutron reflectivity (NR) results, the liquid expanded-liquid expanded (LE-LE) transition observed at π ≈ 30 mN/m was assigned to an expulsion of the well-packed monolayer initially located on the air side

SUBMITTER: Wojciechowski K 

PROVIDER: S-EPMC12333351 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature