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Comparative analysis of drying characteristics, physicochemical properties and volatile flavor components of Dendrocalamus brandisii shoots under four drying techniques

文献类型： 外文期刊

作者： Wang, Hailang 1 ; Wu, Boxiao 1 ; Zhang, Min 1 ; Chen, Lin 1 ; Liu, Yun 1 ; Li, Zelin 2 ; Li, Zhengtian 3 ; Kan, Huan 1 ; Cao, Changwei 1 ;

作者机构： 1.Southwest Forestry Univ, Coll Biol & Food Engn, Dept Food Sci & Engn, Kunming 650224, Peoples R China

2.Yunnan Acad Agr Sci, Inst Agr Prod Proc, Kunming 650224, Peoples R China

3.Qujing Normal Univ, Coll Bioresources & Food Engn, Qujing 655011, Peoples R China

关键词： Bamboo shoots; Drying technology; Volatile organic components; Quality assessment; Energy consumption

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2024 年 205 卷

页码：

收录情况： SCI

摘要： This study compared the differences in drying characteristics, physicochemical properties, and flavor composition of Dendrocalamus brandisii shoots (DBS) under four drying techniques: sun drying (SD), hot air drying (HAD), heat pump drying (HPD), and vacuum freeze-drying (VFD). The results show that Logarithmic model is the best choice for predicting DBS drying process. The color of VFD and HPD samples was closest to that of fresh samples, the texture properties of VFD and HPD were closest; Compared with HAD, SD and HPD, VFD exhibited loose and porous structure, good rehydration, and little destruction of nutrients, but HPD was closer to VFD. The chemical structure and microstructure of DBS dried using different techniques exhibit obvious differences. A total of 111 volatile organic compounds (VOCs) were identified by HS-SPME-GC-MS, of which 20 were identified as characteristic VOCs, and 8 were the key reasons for the flavor differences of DBS samples, among which the special pyrazine compounds in HPD and HAD samples gave them unique flavor, and HPD has the lowest energy and time consumption. In summary, considering the characteristics of bamboo shoots, energy consumption, drying rate and product quality, HPD is the best method for bamboo shoot drying.

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