Key Laboratory of Grains and Oils Quality Control and Processing, Collaborative Innovation Center for Modern Grain Circulation and Safety, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing 210023, China.
School of Agriculture and Food Science, Meru University of Science Technology, P.O. Box 972-60400, Meru, Kenya.
Food Chem. 2019 Mar 15;276:790-796. doi: 10.1016/j.foodchem.2018.10.088. Epub 2018 Oct 19.
Rapid deterioration of postharvest Agaricus bisporus is a serious problem. Measures to improve the shelf-life are of great importance. Therefore, we used a nanocomposite-based packaging material (Nano-PM) containing nano-TiO, nano-SiO, nano-Ag and attapulgite to study its effect on microstructure and energy metabolism of A. bisporus. Nano-PM reduced the oxidation of lipids and proteins by activating antioxidant enzyme activities and inhibiting the accumulation of ROS, thereby maintained high level of energy status. Meanwhile, ATP content and energy charge of A. bisporus in Nano-PM increased through the energy metabolism system. This was attributed to the lower respiration rate and higher mitochondrial respiratory enzyme activities. These results indicated that Nano-PM could maintain the dense and intact microstructure of A. bisporus thus improve its shelf-life.
鲜蘑菇采后迅速劣变是一个严重的问题。采取措施延长货架期具有重要意义。因此，我们使用基于纳米复合材料的包装材料（纳米-PM），其中含有纳米-TiO2、纳米-SiO2、纳米-Ag 和凹凸棒石，研究其对双孢蘑菇微观结构和能量代谢的影响。纳米-PM 通过激活抗氧化酶活性和抑制 ROS 积累来减少脂质和蛋白质的氧化，从而维持高水平的能量状态。同时，纳米-PM 通过能量代谢系统增加了双孢蘑菇的 ATP 含量和能量荷。这归因于较低的呼吸速率和较高的线粒体呼吸酶活性。这些结果表明，纳米-PM 可以保持双孢蘑菇致密完整的微观结构，从而延长其货架期。
