食品科学2026，Vol.47Issue(6)：253-261,9.DOI:10.7506/spkx1002-6630-20251013-055
干银耳复水方式对凉拌预制菜品质及水分迁移的影响
Effects of Rehydration Methods on the Quality and Water Mobility in Rehydrated Dried Tremella fuciformis
摘要
Abstract
This study systematically investigated the effects of different rehydration methods on the quality characteristics and water mobility in rehydrated dried Tremella fuciformis.Dried T.fuciformis was subjected to four rehydration methods:hot water rehydration(HWR)at 70 and 100℃,and ultrasound hot water rehydration(US-HWR)at 70 and 100℃with treatment times of 3,4 and 5 min.Quality evaluation was by measuring rehydration ratio,color,texture properties(hardness and viscosity),polysaccharide content,and sensory scores.Low-field nuclear magnetic resonance(LF-NMR)was used to analyze the mobility of water during the rehydration process.The results showed that ultrasound-assisted rehydration(US-HWR)significantly increased the water absorption rate of T.fuciformis and accelerated water migration.However,it also led to a decrease in hardness,an increase in viscosity,and a reduction in polysaccharide content.Overall,the optimal rehydration process was US-HWR at 100℃for 3 min.Under these conditions,the rehydration ratio was 12.79±0.78,the hardness was(69.36±3.13)g,the viscosity was(0.030±0.002)g·s,and the sensory score reached the highest value of 82.50±2.55.LF-NMR analysis revealed that the water in rehydrated T.fuciformis was mainly composed of four components(T2b,T21,T22,and T23).Both extended rehydration time and ultrasound treatment significantly increased the mobility of water in T.fuciformis and promoted water migration.US-HWR at 100℃for 3 min is an efficient and high-quality rehydration technology.It can produce a product with excellent sensory and physicochemical quality in the shortest time,making it an ideal rehydration method for industrial production of ready-to-eat cold T.fuciformi dishes.关键词
干银耳/复水方式/凉拌预制菜/品质/水分迁移Key words
dried Tremella fuciformis/rehydration methods/ready-to-eat cold dishes/quality/water mobility分类
农业科技引用本文复制引用
汤葆莎,吴俐,肖正,郑志鹏,陈寿辉,李怡彬..干银耳复水方式对凉拌预制菜品质及水分迁移的影响[J].食品科学,2026,47(6):253-261,9.基金项目
"十四五"国家重点研发计划重点专项(2024YFD2100802) （2024YFD2100802）
中央引导地方科技发展专项(2024L3019) （2024L3019）
福建省自然科学基金项目(2025J011241 （）
2023J01201) （）
福建省农业科学院科技创新项目(CXPT2023009 （）
ZYTS202417) （）
