摘要:
A non-destructive method of testing of fruits and vegetables for post-harvest quality (firmness, texture, aroma and color) using fluorescence intensity of the skin or leaves is described. A low intensity red light source (10) is used to irradiate the skin or leaves of fruits or vegetables to provide a first level F.sub.o of fluorescence intensity above that of red light in the 710 to 740 nM range. A second high intensity red light source is used to produce a maximal second fluorescence intensity F.sub.m in the skin or leaves in the 710 to 740 nM range. The ratio F.sub.v /F.sub.m =(F.sub.m -F.sub.o)/F.sub.m is then preferably determined to provide a measure of the quality of the fruit or vegetable.
摘要翻译:描述了利用皮肤或叶子的荧光强度测试水果和蔬菜以获得后质量(坚实度,质地,香气和颜色)的非破坏性方法。 使用低强度红光源(10)照射水果或蔬菜的皮肤或叶子,以提供高于710至740nM范围内红光的荧光强度的第一级Fo。 第二高强度红光源用于在710至740nM范围内产生皮肤或叶中的最大第二荧光强度Fm。 然后优选确定比率Fv / Fm =(Fm-Fo)/ Fm以提供水果或蔬菜的质量的量度。
摘要:
A method for increasing aroma and reducing fungal growth in vegetables and fruits is described. The method uses hexanal in a controlled atmosphere to treat the harvested fruit. The method has been found to be particularly effective for Penicillium sp. and Botrytis sp.