石 勇^1*，石 训¹，纵 伟²，张攀攀¹，段小果¹，周艳华³

（1.好想你健康食品股份有限公司，河南郑州 450000；

2.郑州轻工业大学食品与生物工程学院，河南郑州 450000

3.郑州好想你经济管理中等专业学校，河南郑州 450000）

摘要：为确定金花葵花冷冻干燥工艺条件，通过正交实验优化金花葵花冷冻干燥工艺条件，并比较不同干燥方法对产品特性的影响。结果表明：冷冻干燥优化工艺条件为预冻时间2.5 h、铺放厚度3 cm、隔板温度50 ℃、真空压强65 Pa，在此条件下金花葵花复水比达到2.68 g/g。经冷冻干燥、自然晾干、热风干燥、真空干燥处理的金花葵花总黄酮的保留率分别为95.26%、85.49%%、80.38%、89.35%。表明冷冻干燥的金花葵花品质优于自然晾干、热风干燥和真空干燥方法干燥的金花葵花品质。

关键词：金花葵花，冷冻干燥，产品特性

中图分类号：TQ461    文献标识码：A    文章编号：1674-506X（2022）05-0083-0004

Optimum of Freeze-drying Technology of Flower of Aurea helianthustems and Study its Product Characteristics

SHI Yong^1*, SHI Xun¹, ZONG Wei², ZHANG Panpan¹, DUAN Xiaoguo¹, ZHOU Yanhua³

（1.Haoxiangni Health Food Co., Ltd., Zhengzhou Henan 450000, China;

2.Zhengzhou University of Light Industry, College of Food and Biological Engineering, Zhengzhou Henan 450000, China;

3.Zhengzhou Haoxiangni Economics And Management Specialized Secondary School, Zhengzhou Henan 450000, China）

Abstract：In order to determine the technological conditions of freeze-drying of flower of Aurea helianthustems. Orthogonal experiment methodology were used to optimal technological conditions. The effects of different drying methods on product characteristics were compared. The result showed that optimal freeze-drying conditions are as follows: pre-freezing time 2.5 h, material thickness 3 cm, partition temperature 50 ℃, vacuum pressure 65 Pa. The rehydration rate was 2.68 g/g under the optimum conditions. The total flavonoids retention rates of freeze drying, natural air drying, hot air drying, vacuum drying were 95.26%, 85.49%%, 80.38%, 89.35%. The results showed that the quality of freeze-dried flower of Aurea helianthustems was better than that of natural air drying, hot air drying and vacuum drying.

Keywords：flower of Aurea helianthustems; freeze-drying; product characteristics

doi：10.3969/j.issn.1674-506X.2022.05-014

收稿日期：2021-12-22

基金项目：郑州市重大科技创新专项项目（2020CXZX0086）

作者简介：石勇（1984-），男，高级工程师。研究方向：保健食品研究。

*通信作者

引用格式：石勇,石训,纵伟,等.金花葵花冷冻干燥工艺优化及产品特性研究[J].食品与发酵科技,2022,58(5):83-86.