Preparation and Surface Activities of Modified Soy Protein–Dextrin Surfactants

Abstract

A series of polymeric surfactants has been prepared through the reaction of soy protein with polyethoxylated stearyl ethers of various hydrophilic chain lengths. These surfactants exhibited surface activity, evaluated using surface tension, foaming, and wetting power that was superior to that of traditional surfactants containing only one hydrophobic moiety and one hydrophilic head group. Changing the ethoxylate (EO) group length had a significant effect on the surface activity. Increasing the EO group length decreased the critical micelle concentration (CMC) and increased the surface tension at the CMC (γCMC). The good surface properties of these polysaccharide/protein‐type surfactants suggest that they could be used as emulsifiers to prepare oil‐in‐water emulsions displaying good stability.

Wheat gliadin hydrolysates based nano-micelles for hydrophobic naringin: Structure characterization, interaction, and in vivo digestion

“…The treatment caused disruption of protein hydrogen bonds and hydrophobic interactions, and formed polypeptides with more flexible structure. A decrease in CMC values suggested an enhancement in the interfacial properties of the peptides ( Lin, Lai, Chen, & Li, 2016 ). The flexible structure of WGHs led to a notable increase in contact area and promoted hydrophobic interactions between naringin and hydrolysates.…”

DPPH scavenging capacity of extracts from Camellia seed dregs using polyol compounds as solvents

“…These results revealed that the polyol solvents in this experiment effectively extracted the quintessential ingredients of C. oleifera Abel dregs. The extracts in this study exhibited strong UVA and UVB absorbance, rendering them ideal for application in sunscreens [17, 18, 19, 20].

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Preparation, Surface Activities, and Biodegradability of a Bola‐Type Collagen Hydrolysate‐Based Siloxane Surfactant

“…For instance, the wetting ability of surfactants may accelerate the diffusion or penetration of dyestuffs into fibrous materials and improve their effectiveness and efficiency during the process of dyeing leather or textiles. In general, the wetting ability of a surfactant can be characterized by the contact angle (θ) of its droplet on the surface of a substrate: the smaller the contact angle, the better its wetting ability (Lin, Lai, Chen, & Li, 2016). In this study, we used a paraffin sheet, a chrome-tanned leather, and a cotton fabric to assess the wettability of CBES.…”