美藤果油微胶囊包埋工艺优化及抗疲劳作用研究

Optimization of microencapsulation process for Sacha inchi oil and study on its anti fatigue effect

中文关键词:  美藤果油，芯壁比，包埋率，货架期

英文关键词:Sacha inchi oil  microcapsule  core to wall ratio  embedding rate  shelf life  anti fatigue

中文摘要:

      目的 优化美藤果油微胶囊的制备工艺, 并探讨其抗疲劳功效。方法 以美藤果油为芯材, 以大豆分离蛋白、麦芽糊精为壁材, 利用喷雾干燥法制备美藤果油微胶囊, 并优化工艺参数, 采用Schaal烘箱法进行加速氧化实验, 并根据Van’t Hoff经验预测美藤果油微胶囊货架期; 设置对照组、美藤果油组、微胶囊组, 通过负重游泳实验及检测相关生化指标考察美藤果油及其微胶囊的抗疲劳作用。结果 大豆分离蛋白:麦芽糊精质量为2:1时, 微胶囊外观颗粒完整, 呈规则圆形, 包埋效果较好, 最佳的工艺参数为进风温度: 173℃、芯壁比: 1:4、乳化剂用量: 1.5%, 包埋率为93.8%, 与预测值较接近, 加速氧化实验表明微胶囊化能够有效延长美藤果油保质期达608 d; 与对组相比, 美藤果油及其微胶囊能够延长负重游泳时间, 减少血清尿素氮、血乳酸的积累, 增加机体肌糖原、肝糖原水平, 提升运动持久性, 减少疲劳。结论 美藤果油的包埋效果良好, 微胶囊化有利于提高其氧化稳定性, 并且具有明显的抗疲劳功效。

英文摘要:

      Objective To optimize the preparation technology of Sacha inchi oil microcapsules and investigate its anti-fatigue effect. Methods With Sacha inchi oil as the core material, soybean protein isolate and maltodextrin as the wall material, Sacha inchi oil microcapsules were prepared by spray drying method, and the process parameters were optimized. The accelerated oxidation experiment was conducted by Schaal oven method, and the shelf life of Sacha inchi fruit oil microcapsules was predicted according to Van’t Hoff experience; setting up a control group, a Sacha inchi oil group, and a microcapsule group to investigate the anti fatigue effect of Sacha inchi oil and its microcapsules through weight-bearing swimming experiments and detection of relevant biochemical indicators. Results When the mass ratio of soy protein isolate and maltodextrin was 2:1, the appearance of the microcapsules was intact, in a regular circular shape, and the embedding effect was good. The optimal process parameters were inlet temperature: 173℃, core to wall ratio: 1:4, emulsifier dosage: 1.5%, and embedding rate was 93.8%, which was close to the predicted value. Accelerated oxidation experiments showed that microencapsulation could effectively extend the shelf life of Sacha inchi fruit oil by 608 days; compared with the control group, Sacha inchi oil and its microcapsules could prolong weight-bearing swimming time, reduce the accumulation of blood urea nitrogen and blood lactic acid, increase the levels of muscle glycogen and liver glycogen in the body, improve exercise endurance, and reduce fatigue. Conclusion The embedding effect of Sacha inchi oil is good, microencapsulation is beneficial for improving its oxidative stability, and it has significant anti fatigue effects.