在水包油乳液中添加蘑菇副产物，通过喷雾干燥对葵花籽油进行微胶囊化。
Addition of a mushroom by-product in oil-in-water emulsions for the microencapsulation of sunflower oil by spray drying.
机构信息
Departmentof Chemistry, University of the Balearic Islands, Ctra. Valldemossa, km. 7.5, 07122 Palma de Mallorca, Spain.
UniversitéParis-Saclay, INRAE, AgroParisTech, UMR SayFood, 91300 Massy, France; Université Paris-Saclay, IUT d'Orsay, 91400 Orsay, France.
出版信息
Food Chem. 2021 May 1;343:128429. doi: 10.1016/j.foodchem.2020.128429. Epub 2020 Oct 20.
The by-product generated after ergosterol extraction from mushrooms (A. bisporus) is rich in polysaccharides (β-glucans) and proteins. The usefulness of this mushroom's by-product (MC) in oil microencapsulation by spray drying was evaluated partially replacing maltodextrin (13.5% w/w dry matter) and totally substituting Tween®20 with MC. Ergosterol was investigated as antioxidant. Non-Newtonian stable emulsions with mono-modal droplet size distributions were obtained with MC. Oil encapsulation efficiency was high (≥89%) and oil within microcapsules containing MC exhibited higher (p < 0.05) oxidative stability during spray drying. Powders containing MC exhibited larger particles (d27% larger), 12% lower solubility in water and perceptible color changes. During storage (35 °C 50% RH), conjugated dienes increased more slowly in microcapsules containing MC. Reductions up to 28% in linoleic acid were observed after 150 days. Ergosterol was 95% degraded after 150 days in powders with MC and totally degraded after 2 days in powders without MC.
从蘑菇（双孢蘑菇）中提取麦角固醇后产生的副产物富含多糖（β-葡聚糖）和蛋白质。通过喷雾干燥部分替代麦芽糊精（13.5%w/w 干物质）和完全用 MC 替代 Tween®20，评估了这种蘑菇副产物（MC）在油微胶囊化中的用途。麦角固醇被用作抗氧化剂。用 MC 获得了具有单峰粒径分布的非牛顿稳定乳液。包埋油的效率很高（≥89%），并且含有 MC 的微胶囊内的油在喷雾干燥过程中表现出更高的（p<0.05）氧化稳定性。含有 MC 的粉末表现出更大的颗粒（d27%更大），在水中的溶解度低 12%，并且颜色变化明显。在储存（35°C 50%RH）期间，含有 MC 的微胶囊中的共轭二烯增长更缓慢。在含有 MC 的微胶囊中，亚油酸减少了 28%，在 150 天后观察到。在含有 MC 的粉末中，麦角固醇在 150 天后降解了 95%，而在没有 MC 的粉末中，2 天后就完全降解了。
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