Microencapsulation by Spray Drying Ethyl Caprylate in Whey Protein and Carbohydrate Wall Systems

Ethyl caprylate was microencapsulated by spray drying in wall systems consisting of whey protein in combination with maltodextrin (DE 5–15) or corn syrup solids (DE 24). Ester particle-size distribution in the infeed emulsion was adversely affected by high proportions of low DE maltodextrin. Ester retention during drying was affected (P < 0.05) by type of carbohydrate used and its proportion and ranged from 70 to 91%. The proportion of solvent extractable core was reduced with increasing DE value of carbohydrate. Combinations of whey proteins and high DE mal-todextrins or corn syrup solids are effective wall systems for microencapsulation of volatiles.     

喷雾干燥法制备微胶囊化杜仲籽油的研究

选用阿拉伯胶和麦芽糊精作微胶囊壁材,对喷雾干燥法制备杜仲籽油微胶囊的技术进行研究.结果表明,杜仲籽油微胶囊的优化配方为:阿拉伯胶与麦芽糊精配比1:1,心材与壁材比率2:3,乳化液浓度25%(W/V);喷雾干燥最佳工艺条件为:进风温度180 ℃,出风温度80℃,均质压力35 MPa;在此条件下,杜仲籽油微胶囊的包埋效率可稳定在84%～86%,经微胶囊化处理的杜仲籽油,氧化稳定性显著增强,微胶囊产品的颗粒外形较圆整,表面光滑,大小分布较均匀.     

喷雾干燥法制备芥末油微胶囊化的研究

实验以提取的芥末油为芯材,以阿拉伯胶和麦芽糊精作为壁材,经乳化、均质和喷雾干燥将芥末油树脂制成微胶囊,研究表明包埋芥末油树脂的最佳工艺条件为∶阿拉伯胶∶麦芽糊精为2∶8,芯材∶壁材为1∶3,固形物含量为35％,均质压力26MPa、进料速度15 r/min、进出口风温度235℃/90℃,包埋率可达到93.1％.     

喷雾干燥工艺制备大豆异黄酮微胶囊的研究

研究喷雾干燥法制备微胶囊大豆异黄酮的工艺及技术。结果表明:制备大豆异黄酮微胶囊的最佳配方为壁材以大豆分离蛋白和麦芽糊精质量比1∶1混合、原料液固形物含量30%、芯材与壁材比例为2∶3;最佳生产工艺参数为均质压力40 MPa,喷雾干燥进风温度200℃、出风温度100℃。     

Microencapsulation by Spray Drying of Multiple Emulsions Containing Carotenoids

ABSTRACT: Water-in-oil-in-water (W1/O/W₂) multiple emulsions with 25% and 35% solids contents were spray-dried producing microcapsules with 3.9:1, 2.6:1, and 1.4:1 biopolymers blend to primary emulsion ratios and 0.25% (w/w) theoretical carotenoids concentration. Microcapsules with better morphology, encapsulation efficiency, and larger particle size were those obtained from higher biopolymers blend to primary emulsion ratios and solids content, but showed relatively higher carotenoids degradation kinetics than microcapsules made with lower biopolymers blend to primary emulsion ratios and solids content, which exhibited poorer morphology, encapsulation efficiency, and smaller particle size. Microcapsules stored at different water activities showed maximum carotenoids degradation at a water activity (a_w) of 0.628, with lower carotenoids degradation occurring at lower or higher a_w.     

双歧杆菌微胶囊喷雾干燥工艺的影响因素研究

选择明胶为壁材,以两歧双歧杆菌(Bifidobacterium bifidus)Bbm为实验菌株,采用喷雾干燥的方法制成徽胶囊。研究了喷雾干燥过程中的固形物浓度、进样流量、进风温度、出口温度对微胶囊产率及菌体存活率的影响,确定最佳操作工艺参数为:固形物浓度为3%,进样流量为360 mL/h,进风温度为105℃,出口温度为54～57℃,微胶囊产率为65.7%,活菌存活率为53.5%,活菌数超过1×10~(10)cfu/g。     

喷雾干燥法制备微胶囊化甜橙油的研究

研究了喷雾干燥法制备微胶囊化甜橙油的工艺条件,以阿拉伯胶和麦芽糊精为壁材,通过正交实验得出了微胶囊化包埋甜橙油的最佳工艺条件,运用此工艺制备的微胶囊甜橙油包埋率可达90.25%,长期贮藏后经检测其易挥发性成分损失很小。     

Polydextrose as Wall Material for Microencapsulation of Yacon Juice by Spray Drying

The juice from yacon roots was encapsulated by spray drying using polydextrose and gum Arabic as wall materials. The effects of the concentration of the encapsulating agents and drying temperature on total phenolics, antioxidant activity, fructooligosaccharides, moisture content, water activity, solubility, hygroscopicity, color, and morphology of the microparticles were investigated to assess the potential use of polydextrose as wall material. The microparticles produced with polydextrose showed retention of bioactive compounds and physicochemical characteristics similar to those produced with gum Arabic. The phenolic retention ranged from 73.67 to 85.49 %, and the antioxidant activity by DPPH varied from 80.78 to 90.58 %. The fructooligosaccharides have undergone little depolymerization into simple sugars even at high temperatures. With respect to the physicochemical characteristics, high stability (low moisture and water activity), low hygroscopicity, and high solubility were observed in the microparticles. The spray dried samples showed a hue angle close to 100, indicating yellow color of the particles. Regarding the microstructure, particle agglomeration was observed in both treatments, probably due to the hygroscopic characteristic of the spray dried powders.     

变性淀粉应用于雾干燥的粉末配料工艺探讨

随着食品工业的发展，越来越多的食品配料采用喷雾干燥进行加工。各种亲水性胶体和变性淀粉正在被广泛的应用于这一领域，用于改善食品配料的分散性，抗吸潮性和速溶性。本文探讨了以食用变性淀粉对酱油粉进行微胶囊处理的实际案例，详细介绍了变性淀粉微胶囊壁材系统应用于粉末配料生产的工艺，同时介绍了粉末配料生产时喷雾干燥参数选择的依据。     

喷雾干燥法制备无花果微胶囊的研究

以阿拉伯胶和麦芽糊精为壁材,以无花果的乙醇提取物为芯材,用喷雾干燥法制取无花果微胶囊粉。通过正交试验分析,确定了最佳生产工艺条件:芯材与壁材的比例为1:4,阿拉伯胶与麦芽糊精的比例为1:1,固形物浓度为30%,乳化剂用量为0.3%,30 MPa均质2遍,进风温度为200℃,出风温度为81℃。生产出的微胶囊无花果粉色泽、溶解性好,水、表面油含量低,无甚粘壁现象,适合于工业化生产。     

蜂胶在食品保鲜中的应用

蜂胶是一种天然、安全、具有多种生物活性的物质，因其具有抗菌性和成膜性，也被作为一种高效的食品保鲜剂应用于各种食品的保鲜。本文主要介绍蜂胶的功能成分及抗菌机理，同时展望了蜂胶在食品保鲜上应用的方向和前景。     

血浆蛋白粉喷雾干燥工艺的研究

考查了喷雾干燥进风温度(200、230、260℃)、出口温度(70、80、90℃)对血浆蛋白粉免疫球蛋白、氮溶解指数、粗蛋白质、得率、水分各项指标的影响。结果表明:当进风温度为230℃,出风温度为80℃时,免疫球蛋白(17.89%)质量分数达到最高,综合各项指标的分析,合适的喷雾干燥工艺参数为进风230℃,出风80℃。     

微胶囊技术及其在食品工业中的应用

简要介绍了食品工业中的微胶囊技术、微胶囊材料、微胶囊化方法及微胶囊作用,并阐述了徽胶囊技术在食品工业中的应用及前景。     

微胶囊技术及其在食品工业中的应用

本文简要介绍了食品工业中食品微胶囊化的壁材、方法及作用,并阐述了微胶囊技术在食品工业中的应用及前景。     

Influence of Wall Material and Inlet Drying Air Temperature on the Microencapsulation of Fish Oil by Spray Drying

Several single and composite milk-originated wall materials were used to microencapsulate fish oil via spray drying at various inlet drying air temperatures. Skim milk powder (SMP), whey protein concentrate, whey protein isolate (WPI), 80% WPI?+?20% milk protein concentrate, and 80% WPI?+?20% sodium caseinate (NaCas) were applied as the wall for capsules generated at drying air temperatures of 140, 160, and 180 °C. The higher the drying air temperature, the higher was the particle size, encapsulation efficiency, and peroxide value and the lower was the moisture content and bulk density. The microcapsules prepared with SMP showed the highest encapsulation efficiency and lowest peroxide value for the oil due to the presence of lactose in its chemical composition. Differential scanning calorimetry and Fourier transform infrared analyses indicated the absence of any significant interaction between SMP and fish oil.     

食品中蛋白质的工能特性(英文)

The structure, shape, color, smell and taste of food were decided by protein functionality.The utilization of protein will improve by changing the protein functionality.Protein functionality is also advantage to maintain and utilize the nutrition of food.This paper summarized the nature, classification, factors and prospect of protein functionality.It ccn provide a theoretical basis for application of protein in food industry.