金宗企业带你一起探索食品乳化的奥秘
发布日期：2023-12-21
阅读量：402
乳化定义速览
乳化是一种液体以极微小液滴均匀地分散在互不相溶的另一种液体中的作用。乳化是液-液界面现象，两种不相溶的液体，如油与水，在容器中分成两层，密度小的油在上层，密度大的水在下层。若加入适当的表面活性剂在强烈的搅拌下，油被分散在水中，形成乳状液，该过程叫乳化。
乳化在食品制作中的功效
目前我国规定允许使用的乳化剂有：单硬脂酸甘油酯、蔗糖脂肪酸酯、酪蛋白酸钠、山梨醇酐单硬脂酸酯、木糖醇酐单硬脂酸酯等30多种。
乳化剂在食品加工中有多种功效，不同的乳化剂由于组成和结构不同，在食品加工中可起到乳化、润湿、渗透、发泡、消泡、分散、增溶、润滑等作用，广泛用于面包、糕点、饼干、人造奶油、冰淇淋、饮料、乳制品、巧克力等食品工业中，约占食品添加剂使用量的一半以上，是食品加工中必不可少的食品添加剂。乳化剂能稳定食品的物理性质，促进油水相溶，渗入淀粉结构的内部，促进内部交联，防止淀粉老化，起到提高食品质量、延长食品保质期、改善食品风味、增加经济效益等作用。
乳化技术的深入作用
食品中大多含有溶解性质不同的组分，乳化剂有助于它们均匀、稳定地分布，从而防止油水分离，防止糖和油脂的起霜，防止蛋白凝集或沉淀。除此之外，乳化剂还起到发泡和充气作用，悬浮作用，破乳作用和消泡作用，络合作用，结晶控制作用，润滑作用，润湿作用及抗菌、保鲜作用等。
乳化的广泛应用
植物稀奶油以植物油脂为主要原料，再加上其他配料制作而成，乳化剂可以乳化植物油脂，使之形成稳定的结构。一些常见糖果，如奶油糖、太妃糖以及巧克力中都含有大量油脂，在加工过程中添加乳化剂（如分子蒸馏单甘酯），可以将糖果中的油脂乳化，使油脂与其他物质形成乳化体系，防止糖果油脂分离，稳定糖果的外形，抑制巧克力中的油脂结晶，改善巧克力及糖果的口感。
乳化剂可以使冰淇淋中的油脂分子大小一致且均匀分布，有效防止冰淇淋中由于冰晶的形成，而影响产品的细腻口感，提高乳状液的稳定性。一些饮料（如豆奶、花生牛奶、可可乳等）中也含有大量油脂，乳化剂（如乳清蛋白、分子蒸馏单甘酯、酪酸钠等）能使饮料中的油脂乳化，形成稳定的乳化体系，避免饮料分层，保证饮料良好的感官性状以及口感。
金宗企业20多年来一直专注于乳化设备的研发生产，自主研发的真空乳化机，具有以下特点：
智能操控系统：操作简单，自动化，工艺状态实时监控
无死角挂壁搅拌系统：防止沉降和贴壁粘附，降低材料损耗
高剪切均质系统：运行稳定，生产产品质量好
真空系统：真空吸料、干净彻底，真空消泡，无菌生产
设备单一、占地小，设备利用率高，投资成本低
量身定制：根据客户需求进行定制化设计，提供设计、制造、工程安装等一站式解决方案
欢迎各大厂商前来参观洽谈指导交流！
专栏：技术交流
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