CAJ | 학술논문

利用氯化钙处理大平顶枣，通过低场核磁共振技术监测枣贮藏过程中水分分布状态和含量，研究钙处理对枣的保鲜效果。试验结果表明，氯化钙溶液浸渍具有很好的保鲜效果，钙盐处理可以很好地保持大枣的质构特性，维持枣果的水分和营养成分。经低场NMR谱拟合后，分别对应反演谱T2值为结合水T21（0.1-10ms）、半结合水T22（10-200ms）和自由水T23（200-1000ms），对大枣贮藏过程的水分进行动态监控，能够有效区分不同新鲜度的大平顶枣，为大枣的无损检测提供参考。
이용록화개처리대평정조，통과저장핵자공진기술감측조저장과정중수분분포상태화함량，연구개처리대조적보선효과。시험결과표명，록화개용액침지구유흔호적보선효과，개염처리가이흔호지보지대조적질구특성，유지조과적수분화영양성분。경저장NMR보의합후，분별대응반연보T2치위결합수T21（0.1-10ms）、반결합수T22（10-200ms）화자유수T23（200-1000ms），대대조저장과정적수분진행동태감공，능구유효구분불동신선도적대평정조，위대조적무손검측제공삼고。
In order to explore the storage and fresh-keeping methods of using CaCl2 treatment, Low-field nuclear magnetic resonance techniques is used to monitor the water moisture distribution of jujube. Experiment results showed that fresh-keeping effects were well with treatments of calcium solution. Calcium salt treatment can keep the texture properties of jujube well, keep moisture and nutrients. Distributed exponential analysis of the NMR T2 transverse relaxation data revealed the existence of three states of water, immobile water (0.1-10ms), mobile wa-ter (10-200ms), free water (200-1000ms). NMR also can as a detection method for jujube storage quality. Our research work results may provide a positive reference for studying of Dapingding jujube fresh-keeping at low tem-perature conditions.