Mass transfer characteristics during ultrasound-assisted osmotic dehydration of button mushroom (Agaricus bisporus)
Mass transfer characteristics during ultrasound-assisted osmotic dehydration of button mushroom (Agaricus bisporus)
复制标题
双孢蘑菇超声辅助渗透脱水过程中的传质特性
DOI：
10.1007/s13197-019-03707-8
复制
发表时间：
2019-04-01
影响因子：
3.1
通讯作者：
Hu, Qiuhui
中科院分区：
文献类型：
--
作者：
Pei, Fei;Xiao, KunPeng;Hu, Qiuhui
采用超声辅助渗透脱水（UOD）技术对双孢蘑菇（Agaricus bisporus）切片进行脱水，研究了蔗糖、葡萄糖和氯化钠3种渗透剂对其传质特性、平均密度和微观结构的影响。选择了不同的数学模型来描述渗透行为，并计算了UOD期间的有效水分（Dm）和固体扩散系数（Ds）。结果表明，在UOD过程中，冬菇在氯化钠溶液中的dm值最高，在葡萄糖溶液中的ds值最高，说明在这两种渗透溶液中水分和固体的转移速度更快。此外，Weibull模型对本研究工况下的钮扣菇UOD曲线拟合效果最好，对钮扣菇UOD期间的水分和固含量具有较好的可预测性。此外，由于蔗糖制剂具有较好的微观结构，且在发酵过程中有效水分和固体扩散率适宜，故建议采用蔗糖制剂进行发酵。本研究为蘑菇等食品的深加工提供了理论依据。
Button mushroom (Agaricus bisporus) slices were dehydrated using ultrasound-assisted osmotic dehydration (UOD), and three osmotic agents including sucrose, glucose and sodium chloride were investigated for their effects on the mass transfer characteristics, average density and microstructure. Different mathematical models were selected to describe the osmotic behaviours, and the effective moisture (Dm) as well as solid diffusivities (Ds) during UOD were also calculated. The results showed that, during UOD, button mushrooms had the highestDmvalues in the sodium chloride solutions, and they had the highestDsvalues in the glucose solutions, which indicated that faster moisture and solid transfers could occur in these two osmotic solutions, respectively. Moreover, the Weibull model provided the best fit for the UOD curves of button mushrooms under the study’s operating conditions, which showed good predictability for the moisture and solid contents of the button mushrooms during UOD. In addition, sucrose agents were suggested for use in the UOD of button mushrooms due to the better microstructure of the products as well as the appropriate rates of effective moisture and solid diffusivities during UOD. This study provides a theoretical basis for the deep processing of mushrooms and other food products.