食用天然色素

食用天然色素刘志皋（天津轻工业学院天津，３００２２２）一、食用色素概述食用色素是以食品着色和改善食品色彩为目的的食品添加剂。长期以来，人们为了美化生活，同时使食品更有吸引力，常在食品加工的过程中使用一定的着色物质。这在最初，大多是应用来自某些含有天然...     

世界用量最大的食用色素——焦糖色素

综述了焦糖色素在食品加工业的发展应用及其性质，生产与评价 。     

有机淀粉颜料在纸张涂料中的应用

VTT与芬兰赫尔辛基大学和约恩苏(Joensuu)大学联合开发出一种可替代矿物类颜料的有机淀粉颜料.该淀粉颜料具有密度小、有利于提高纸张强度、对纸机部件(如网部、切纸刀)磨损轻、与环境友好等特点.     

Natural Pigments: Stabilization Methods of Anthocyanins for Food Applications

The production of natural food pigments continues to grow worldwide. The global market is expected to grow at a compound annual growth rate of 6.22%, by revenue, over the period 2015 to 2019. Pigments such as anthocyanins, carotenoids, betalains, and chlorophylls have been used to color foods. However, there are challenges related to color losses during food processing, storage, and commercialization due to a low stability of natural pigments compared to synthetic colorants. This review summarizes the most recent studies and patents aimed at enhancing anthocyanin stability in food systems. The stabilizing methods include additions of copigment compounds, such as polymers, phenolic compounds, and metals. In addition, the exclusion of O₂ during processing and storage, hard‐panned candy coating methods for blue, green, and brown colors, and various encapsulation techniques were considered. Combining strategies and evaluating new materials capable of stabilizing anthocyanins will enhance their potential for use as value‐added natural food pigments.     

食用级羟丙基糯玉米淀粉制备条件的研究

羟丙基糯玉米淀粉在国外已广泛的应用于多种食品体系，国内尚未见有研究或应用的报道。本文以山东农业大学玉米育种教研室提供的“花糯一号”为原料提取糯玉米淀粉，并对其进行羟丙基化变性，得出羟丙基糯玉米淀粉的合成条件为：淀粉乳浓度40％，环氧丙烷用量8％－10％，反应温度40℃－45℃，反应时间18h-20h，NaOH用量1.0%-1.2%,Na2SO4用量13％－15％。     

Amaranthus Betacyanin Pigments Applied in Model Food Systems

Amaranthus betacyanin pigments and commercial colorants were evaluated to determine color characteristics and stability at different temperatures in jelly, ice cream, and a model beverage. The betacyanin exhibited brighter color characteristics than red radish anthocyanin, with similar color stability during 20-wk storage (≤ 14 °C) or during the initial 4-wk storage (≤ 25 °C), but was less stable than red radish anthocyanin at 37 °C. The betacyanin was not as stable as synthetic Food, Drug, and Cosmetics Red No. 3 under most storage conditions. Ascorbic acid had a protective effect on Amaranthus pigments. Excessive sucrose (≥ 16%) decreased stability of the pigments. The betacyanin tested may be a feasible natural colorant for jelly, higher pH beverages, and ice cream under selected conditions.     

天然色素在烘焙食品中的应用

本文介绍了天然色素的分类、性质、市场前景及其在烘焙食品中的应用概况。     

高效液相色谱法测定挂面中食用合成色素的测定

通过添加木瓜蛋白酶和α- 淀粉酶水解挂面中淀粉和蛋白质,减少淀粉和蛋白质在提取过程中对合成色素的吸附,以研究适合于挂面中食用合成色素的测定方法。结果表明：在加酶的情况下,色素回收率显著提高,并随着加酶种类和含量的不同,色素回收率也有所不同,α- 淀粉酶和木瓜蛋白酶组成的复合酶制剂的添加效果优于单一酶制剂。复合酶添加量α- 淀粉酶为2%、木瓜蛋白酶为2.5% 时,5 种色素柠檬黄、苋菜红、胭脂红、日落黄、亮蓝加标回收率均在80% 以上,较对照组有显著提高。     

高效液相色谱法测定葡萄酒中人工合成色素

建立了葡萄酒中柠檬黄、苋菜红、胭脂红、日落黄含量的高效液相色谱法测定方法. 采用ODS-Cl8色谱柱,甲醇和002mol/L乙酸铵的水溶液为流动相进行梯度洗脱,流速为08mL/min,采用紫外检测器,检测波长为470nm. 该方法测定结果的相对标准偏差小于3%-n=6-,平均回收率大于95%.     

淀粉糖酯——新型的食品乳化剂

本叙述了一类新型的有待开发的食品乳化剂一淀粉糖酯,产品的开发能丰富我国食品添加剂的品种,并介绍了淀粉糖酯产品的品种、性能和产品的应用前景及制取的方法。     

蜡质玉米淀粉的性质及其在食品加工中的应用

本文研究了蜡质玉米淀粉的品质特性，结果表明蜡质玉米淀粉糊液的粘性比马铃薯淀粉低，但明显高于普通玉米淀粉，蜡质玉米淀粉糊化后不易老化，其糊液抗凝沉、透光度都优于普通玉米淀粉和马铃薯淀粉。用Brabender粘度计测定了蜡质玉米淀粉糊在不同pH值及添加物条件下粘度曲线的变化情况。