Effect of multi-mode dual-frequency ultrasound pretreatment on the vacuum freeze-drying process and quality attributes of the strawberry slices

文献类型： 外文期刊

第一作者： Xu, Baoguo

作者： Xu, Baoguo;Chen, Jianan;Tiliwa, Essodezam Sylvain;Azam, S. M. Roknul;Wei, Benxi;Zhou, Cunshan;Ma, Haile;Yuan, Jun;Xu, Baoguo;Azam, S. M. Roknul;Ma, Haile;Yan, Weiqiang

作者机构：

关键词： Ultrasonic; Strawberry; Vacuum freeze-drying; Water migration

期刊名称：ULTRASONICS SONOCHEMISTRY （ 影响因子：7.491； 五年影响因子：7.537 ）

ISSN： 1350-4177

年卷期： 2021 年 78 卷

页码：

收录情况： SCI

摘要： The effects of osmotic pretreatment assisted by ultrasound in different frequency modes before vacuum freezedrying (VFD) on moisture migration and quality characteristics of strawberry slices were investigated. The frequency modes are single-frequency modes under 20, 40 kHz (SM-20, SM-40), and dual-frequency under 20/ 40 kHz including sequential mode (SeDM) and simultaneous mode (SiDM). The quality characteristics of dried strawberry products including rehydration, hardness, color, flavor, total anthocyanins, total phenols, vitamin C content, and active antioxidant components (DPPH and -OH) were determined. Results showed that drying time of the strawberry slices irradiated by ultrasound was reduced by 15.25%-50.00%, compared to the control samples. Besides, dual-frequency ultrasound shortened the drying time more than single-frequency ultrasound. The drying time of SeDM was the shortest. In addition to vitamin C content, the quality characteristics including rehydration, hardness, color, flavor, total anthocyanins, total phenols, and antioxidant activity of dried strawberry products pretreated by SeDM were significantly (p < 0.05) better than those of control and other pretreated samples. It can be concluded that the SeDM was an effective pretreatment method to produce high-quality vacuum freeze-dried strawberry products.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序