果蔬保鲜剂可分为两类,即化学合成的和天然的果蔬保鲜剂。化学合成的果蔬保鲜剂对人体健康有一定的影响,因此,人们开始把注意力转向天然果蔬保鲜剂的应用上。 1.魔芋提取液 魔芋的地下茎块含有大量魔芋粉,粉中主要成分为魔芋甘露糖酐,含量可达50％,用有机溶剂 Fruit and vegetable preservatives can be divided into two categories, namely chemical synthesis and natural fruits and vegetables preservatives. Chemical synthesis of fruits and vegetables Preservatives have a certain impact on human health, therefore, people began to turn their attention to the application of natural fruits and vegetables Preservatives. 1. Konjac extract Konjak underground stem contains a lot of konjac flour, the main component of konjac powder mannitol content of up to 50%, with organic solvents