| 郑 峰,王忠明,王 迪,牟秀梅,来海中.基于变异系数权重法评价干燥无花果多糖品质[J].保鲜与加工,2019,19(4):119~124 |
| 基于变异系数权重法评价干燥无花果多糖品质 |
| Quality Evaluation of Drying Ficus carica Polysaccharides Based on Variation Coef?覱cient Weight Method |
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| DOI： |
| 中文关键词: 无花果多糖 干燥方式 品质 变异系数权重法 综合评分 |
| 英文关键词:Ficus carica polysaccharide drying method quality variation coef?覱cient weight comprehensive score |
| 基金项目:乌鲁木齐高新技术产业开发区(新市区)创业孵化专项（2015CHYFH） |
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| 中文摘要: |
| 以无花果粉为原料，经过脱脂、加水酶解、超声波提取和脱蛋白处理后得到无花果多糖提取液，浓缩后通过热风干燥、真空冷冻干燥、真空干燥、喷雾干燥和微波干燥分别对其进行干燥制粉，并对5种无花果多糖粉多糖保留率、颜色、溶解度、干燥能耗和清除DPPH自由基能力进行测定，利用变异系数权重法对5种无花果多糖粉品质综合评分，以确定其最佳的干燥方式。结果表明：干燥方式对各指标影响显著，其中，真空冷冻干燥的多糖保留率最高，得到的多糖颜色变化最小，溶解度最大，对DPPH自由基清除能力最强；色度和干燥能耗在综合评价中所占权重较大，分别为0.416、0.403，品质综合评分结果为：FCPS2（真空冷冻干燥无花果多糖）品质最优，评分为0.637。 |
| 英文摘要: |
| Five dried methods including blast drying, vacuum freeze drying, vacuum drying, spray drying and microwave drying were used to dry Ficus carica polysaccharides extracting solution obtained from Ficus carica powder treated by degreasing, enzymolysis, ultrasonic, deproteinization and condensing. The polysaccharide retention, color, solubility, drying energy consumption and DPPH· scavenging ability of the five dried polysaccharide powder samples were measured, and the variation coefficient weight method was used to evaluate their comprehensive quality to determine the optimal drying method. Results showed that different drying methods had a signi?覱cant effect on all investigated quality parameters. The samples dried by vacuum freeze were rich in polysaccharides, exhibited the best solubility, colour and antioxidant activity. Color and drying energy consumption contributed greatly to the comprehensive score of dried polysaccharides based on variation coefficient weight analysis, the scores were 0.416 and 0.403 respectively. Comprehensive evaluation results indicated that the quality of polysaccharides obtained by vacuum freeze drying was the best with comprehensive scores of 0.637. |
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