低吸油面包屑的研制

为了制取低吸油量的面包屑,通过在普通面包屑配料中添加黄原胶、大豆膳食纤维、变性淀粉、羧甲基纤维素纳、脱脂大豆粉、地瓜淀粉、卵磷脂、马铃薯淀粉、单甘酯、蔗糖酯、糊化面粉等物质的一种或三种研究其对面团成筋性、面包屑吸油量、面包屑附着性和酥脆性的影响,得到合适的配方。结果表明:添加的物质中除了大豆卵磷脂外均可以降低面包屑的吸油量;结合面包屑油炸后的附着性和酥脆性能,最优配方为:3%变性淀粉+2%大豆膳食纤维+0.15%蔗糖酯和30%的糊化面粉+70%的普通面粉配合,按常规生产方式进行生产。使用膳食纤维可以改善面团质地和延展性,赋予酥脆感,试验中把变性淀粉、膳食纤维以及乳化剂配合使用克服面包屑产品变硬的缺点,使面包屑即降低了吸油量又酥脆可口。

低吸油面包糠的制备工艺研究

[目的]制备低吸油率面包糠,以有效利用挂面面头,并为改进油炸食品质量提供新源料。[方法]以挂面面头为主要原料,以吸油率为考察指标,在单因素试验的基础上,进行4因素3水平正交试验,优化低吸油率面包糠的制备工艺,并比较分析了不同原料制备的面包糠的感官、吸油率、微观特性。[结果]低吸油率面包糠的适宜制备工艺条件为发酵温度28℃,发酵时间2.5 h,烘烤时间30 min,烘烤温度190℃,此条件下面包糠的吸油率为20.41%。面包糠的显微结构致密度与其吸油率高低密切相关。[结论]以挂面面头和面粉为主要原料制备低吸油率面包糠不仅拓展了挂面面头的应用市场,而且为油炸食品提供了新型的涂膜材料。

Influence of Partial Drying on Oil Uptake ＆ Quality Attributes of French Fries

Today＇s customers are looking for non-fat or low-fat containing products. One of the methods to reduce oil absorption in fried products is partial drying before frying. In this study, influence of partial drying （10 min, 20 min, 30 min） on oil absorption and quality attributes of three potato cultivars （Agria, Satina, kenebek） was evaluated. Our results reveled that in Agria, partial drying leads to an increase in oil absorption compared with non-dried sample （p〈0.05）. In kenebek, partial drying reduced the oil absorption and improved the texture and color of the produced French fries （p〈0.05）. Similar results were observed with Satina as with kenebek. In all three varieties, partial drying increased the dry matter, color quality and required cutting force of the French fries （p〈0.05）.