Abstract：
In recent years, the utilization of aerogel templates in oleogels to replace animal fats has garnered considerable attention due to health concerns. This study employed a \"fiber-particle core-shell nanostructure model\" to combine sodium carboxymethylcellulose (CMCNa) and soy protein isolate (SPI) or SPI hydrolysate (SPIH), and freeze-dried to form aerogel template, which was then dipped into oil to induce oleogels. The results showed that adding SPIH significantly improved the physicochemical properties of oleogels. The results of ζ-potential, FTIR, and rheology demonstrated a stronger binding of SPIH to CMC-Na compared to SPI. The CMC-Na-SPIH aerogels exhibited a coarser surface and denser network structure in contrast to CMC-Na-SPI aerogels, with an oil holding capacity (OHC) of up to 84.6 % and oil absorption capacity (OAC) of 47.4 g/g. The mechanical strength of oleogels was further enhanced through chemical crosslinking. Both CMC-Na-SPI and CMC-Na-SPIH oleogels displayed excellent elasticity and reversible compressibility, with CMC-Na-SPIH oleogels demonstrating superior mechanical strength. Additionally, CMC-Na-SPIH oleogels exhibited enhanced slow release of antimicrobial substances and antioxidant properties. Increasing the content of SPI/SPIH significantly improved the mechanical strength, antioxidant capacity, and OHC of the oleogels. This research presents a straightforward and promising approach to enhance the performance of aerogel template oleogels.
摘要：
近年来,在油凝胶中利用气凝胶模板来代替动物脂肪已经引起了相当大的关注，因为健康问题。本研究采用“纤维颗粒核-壳纳米结构模型”将羧甲基纤维素钠（CMCNa）和大豆分离蛋白（SPI）或SPI水解物（SPIH）结合起来，并冷冻干燥形成气凝胶模板，然后将其浸入油中以诱导油凝胶。结果表明,添加SPIH能显著改善油凝胶的理化性质。ζ电位的结果，FTIR,和流变学表明SPIH与CMC-Na的结合比SPI更强。与CMC-Na-SPI气凝胶相比，CMC-Na-SPIH气凝胶具有更粗糙的表面和更致密的网络结构，持油能力（OHC）高达84.6%，吸油能力（OAC）为47.4g/g。通过化学交联进一步提高了油凝胶的机械强度。CMC-Na-SPI和CMC-Na-SPIH油凝胶均表现出优异的弹性和可逆性。CMC-Na-SPIH油凝胶表现出优异的机械强度。此外,CMC-Na-SPIH油凝胶表现出增强的抗微生物物质的缓慢释放和抗氧化性能。增加SPI/SPIH的含量显著提高了机械强度,抗氧化能力，和OHC的油凝胶。这项研究提出了一种直接且有前途的方法来增强气凝胶模板油凝胶的性能。
