浙江农业学报 ›› 2024, Vol. 36 ›› Issue (1): 205-214.DOI: 10.3969/j.issn.1004-1524.20230414

• 食品科学 • 上一篇    下一篇

干燥方式对桑叶枸杞固体饮料品质的影响及其口感优化

陈恒辉1,2(), 王军峰3, 韩延超2, 陈慧芝2, 吴伟杰2, 丁玉庭1, 童川1, 郜海燕2,*()   

  1. 1.浙江工业大学 食品科学与工程学院,浙江 杭州 310014
    2.浙江省农业科学院 食品科学研究所,农产品质量安全危害因子与风险防控国家重点实验室,农业农村部果品产后处理重点实验室,中国轻工业果蔬保鲜与加工重点实验室,浙江省果蔬保鲜与加工技术研究重点实验室,浙江 杭州 310021
    3.缙云县山里人家农产品开发有限公司,浙江 缙云 321400
  • 收稿日期:2023-03-30 出版日期:2024-01-25 发布日期:2024-02-18
  • 作者简介:陈恒辉(1994—),男,安徽宿州人,硕士研究生,研究方向为食品物流保鲜与品质调控。E-mail:chh2268173673@163.com
  • 通讯作者: * 郜海燕,E-mail:spsghy@163.com
  • 基金资助:
    “十三五”国家重点研发计划(2017YFD0400804)

Effects of drying methods on quality of solid drinks made from mulberry leaves and barbary wolfberry fruits and its taste optimization

CHEN Henghui1,2(), WANG Junfeng3, HAN Yanchao2, CHEN Huizhi2, WU Weijie2, DING Yuting1, TONG Chuan1, GAO Haiyan2,*()   

  1. 1. College of Food Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
    2. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. Jinyun County Shanli Renjia Agricultural Products Development Co., Ltd., Jinyun 321400, Zhejiang, China
  • Received:2023-03-30 Online:2024-01-25 Published:2024-02-18

摘要:

为研究不同干燥方式对桑叶枸杞固体饮料品质的影响,以桑叶、枸杞为基本原料,通过微波干燥、鼓风干燥和真空冷冻干燥3种方式分别制备桑叶枸杞固体饮料,并检测干燥后粉体的质构、色泽及营养品质变化。从物理性质来看,真空冷冻干燥的粉体在稳定性、可压性与均一性上表现较好,鼓风干燥的粉体在堆积性和流动性上相对更好。真空冷冻干燥粉体的总糖含量最高,亮度值最大,湿润下沉时间短。结合吸湿特性与微观结构判断,真空冷冻干燥制备的粉体品质优于其他2种干燥方式。为了改善饮料风味,采用响应面试验进行口感优化,结果表明,当木糖醇添加量为27.30%(质量分数,下同)、甜菊糖苷添加量为3.67%、苹果酸添加量为0.11%时,口感最好。

关键词: 干燥方式, 桑叶, 枸杞, 固体饮料

Abstract:

In this study, the influence of drying methods on the quality of solid drinks prepared by mulberry (Morus alba L. ) leaves and barbary wolfberry (Lycium barbarum) fruits was investigated. The mulberry leaves and barbary wolfberry fruits were used as the basic raw materials, and the solid drinks were dried by three methods including microwave drying, forced air drying and vacuum freeze drying. The changes in the texture, color and nutritional quality of the solid drinks powder after drying were analyzed. The results of physical properties showed that vacuum freeze drying had good stability, homogeneity and compressibility, while the forced air drying showed the best accumulation and flowability. The powder dried by vacuum freeze drying had the highest total sugar content, the highest brightness and the shortest moisture sinking time. Given the moisture absorption characteristics and microstructure, the quality of solid drinks powder prepared by vacuum freeze drying was better than the others. In order to improve the flavor of the soild drinks, the response surface test was conducted. The results showed that, the taste of the solid drinks was the optimal with the addition of xylitol (mass fraction of 27.30%), stevia glycoside (mass fraction of 3.67%) and malic acid (mass fraction of 0.11%).

Key words: drying method, mulberry leaves, barbary wolfberry fruit, solid drinks

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