Spontaneously foaming oil systems have been formulated from water‐in‐oil emulsions by the controlled release and entrapment of gas in emulsified water droplets contained within the oil. The cascade of events leading to their formation is as follows: Two Span 60‐emulsified populations of water droplets, one containing Na₂CO₃, the other 10% HCl and caseinate, were mixed in miglyol oil; the controlled coalescence of Na₂CO₃ droplets with the HCl ones served as a microreactor for the pH reduction and the subsequent release of CO₂ from Na₂CO₃; these gas microbubbles were arrested by sodium caseinate, stabilizing a microfoam within the water droplets; these droplets expanded under the rising gas pressure, spontaneously transforming the surrounding oil into a foamy oleogel containing water droplets.

中文翻译：

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油包水乳液中的自发泡沫油

自发性起泡的油体系是由油包水型乳剂通过在油中所含的乳化水滴中进行控制性释放和截留气体而制成的。导致其形成的事件的级联如下：将两个Span 60乳化的水滴群体（其中一个包含Na ₂ CO ₃，另一个10％HCl和酪蛋白酸盐）混合在米格洛尔油中。Na ₂ CO ₃液滴与HCl液滴的受控聚结充当微反应器，用于pH降低以及随后从Na ₂ CO ₃释放CO ₂; 这些气体微气泡被酪蛋白酸钠阻止，稳定了水滴中的微泡。这些液滴在不断上升的气压下膨胀，自发地将周围的油转变成含有水滴的泡沫油凝胶。