The present study investigates the effect of oil type on the formation, morphology and mechanical properties of phytosterol-based organogels. The formation of organogels can be satisfactorily predicted with a criterion based on Hansen Solubility Parameters (HSPs), provided that the sterol and sterol ester in these systems assemble as tubules. When structures other than tubules are formed, the predictability of the HSP-based criterion becomes void. In cases where organogelling occurred, the morphology and mechanical properties of the tubular network of the gels and water-in-oil emulsions were investigated. The findings revealed that the structure of the tubular network formed in oils with different compositions, could be grouped based on the dielectric constants of the oils. Curly and bundled tubules which formed networks, were observed in gels prepared with low dielectric constant oils (i.e. decane and limonene). For oils with a moderate dielectric constant (i.e. castor oil and sunflower oil), the tubules became less curly and straighter. Upon increasing the dielectric constant of the oil (eugenol), individual tubules were observed next to the bundled tubules. The results showed that straighter, bundled tubules are associated with firmer gels, whereas less straight (i.e. curly) tubules rendered weaker gels. The tubular network of the water-in-oil emulsions obtained for oils with a low dielectric constant appeared more open with straighter tubules. For oils with relatively high dielectric constant, the water-in-oil emulsions lost most of their tubular structure and only a few tubules could be observed. In the presence of emulsion droplets fewer tubules are formed, resulting in weaker networks.

本研究调查了油类类型对基于植物甾醇的有机凝胶的形成，形态和力学性能的影响。可以使用基于Hansen溶解度参数（HSP）的标准令人满意地预测有机凝胶的形成，前提是这些系统中的甾醇和甾醇酯组装成小管。当形成除肾小管以外的结构时，基于HSP的标准的可预测性将变得无效。在发生有机胶凝的情况下，研究了凝胶和油包水乳液的管状网络的形态和机械性能。这些发现表明，在具有不同组成的油中形成的管状网络的结构可以根据油的介电常数进行分组。弯曲和捆绑的小管形成网络，在用低介电常数油（即癸烷和柠檬烯）制得的凝胶中观察到。对于介电常数适中的油（如蓖麻油和葵花籽油），小管的卷曲度和直度降低。增加油（丁子香酚）的介电常数后，在捆绑的小管旁观察到单个小管。结果表明，较直的，成束的小管与较硬的凝​​胶有关，而较不直的（即卷曲的）小管则使较弱的凝胶。对于具有低介电常数的油而言，获得的油包水型乳液的管状网络在直管的情况下显得更加开放。对于具有相对高的介电常数的油，油包水型乳液失去了大部分的管状结构，只能观察到少量的小管。在存在乳剂液滴的情况下，形成的小管较少，