基于云模型的益生菌微胶囊干燥技术评价

Evaluation of Probiotic Microcapsule Drying Technology Based on Cloud Model

益生菌微胶囊的干燥制备技术是保证益生菌在长期贮存期间稳定性的关键。为客观评价现有不同干燥技术对益生菌微胶囊的干燥效果。通过分析喷雾干燥(B_1)、真空冷冻干燥(B_(2))、流化床干燥(B_3)以及微波真空冷冻干燥(B_(4)) 4种干燥技术在益生菌微胶囊干燥中的应用,构建益生菌微胶囊干燥技术多过程分级评价指标体系。基于排队理论确定了水分特性、表观特性、结构特性、化学特性、生物特性及评价因子的序列等级和权重。同时引入黄金分割率法以及云发生器原理综合构建了益生菌微胶囊干燥技术云评价模型,定量评价4种干燥方式对于益生菌微胶囊的干燥效果。结果表明:4种干燥技术的综合评价云分别为:Z_(B1)(0.4624,0.0674,0.0088)、Z_(B2)(0.5810,0.0591,0.0106)、Z_(B3)(0.6772,0.0595,0.0111)、Z_(B4)(0.7635,0.0582,0.0119)。对于益生菌微胶囊的干燥性能综合排序为B_(4)>B_3>B_(2)>B_1。本研究方法与结论可为丰富及完善益生菌微胶囊干燥技术研究提供理论参考。

The drying preparation technology of probiotic microcapsules is the key to ensure the stability of probiotics during long-term storage.In order to objectively evaluate the drying effect of different drying techniques on probiotic microcapsules.In this paper,the applications of spray drying(B1),vacuum freeze drying(B2),fluidized bed drying(B3)and microwave vacuum freeze drying(B4)4 in probiotic microcapsule drying were analyzed.The multi-process grading evaluation index system of probiotic microcapsule drying technology was constructed.Based on the queuing theory,the sequence grades and weights of water characteristics,apparent characteristics,structural characteristics,chemical characteristics,biological characteristics and evaluation factors were determined.At the same time,the cloud evaluation model of probiotic microcapsule drying technology was constructed by introducing the golden section method and cloud generator principle,and the drying effects of four drying methods on probiotic microcapsules were quantitatively evaluated.The results showed that the comprehensive evaluation of the four drying techniques were ZB1(0.4624,0.0674,0.0088),ZB2(0.5810,0.0591,0.0106),ZB3(0.6772,0.0595,0.0111)and ZB4(0.7635,0.0582,0.0119),respectively.The comprehensive order of drying performance of probiotic microcapsules is B4>B3>B2>B1.The research method and conclusion can provide theoretical support and useful reference for enriching and perfecting the drying technology of probiotic microcapsules.