Evaluation of Nano-packing on the Shelf Life of Fresh-Cut Lotus Root (NelumbonuciferaGaerth)

摘要

The effect of nanocomposite low-density polyethylene (LDPE) films containing ZnO and silver nanoparticles on preservation of lotus root (NelumbonuciferaGaerth) store at 4 ℃ for 12 days was investigated. The nano-packing not only suppressed the growth of aerobic bacteria (<4 log cfu g-1). but also inhibited the increasing of yeast and molds, the maximum growth of which reached only 3.3 log cfu g-1 in the nano-packing while 5.6 log cfu g-1 in control. The least degradation of ascorbic acid (AA) (39.2 mg/100 g) and browning rate (0.56) were observed in package containing nano-ZnO and nanosilver particles. Fruit decay and MDA content were efficiently reduced in nano-packing samples. The results reveal that nano-ZnO and nanosilver coated film as an alternative non-thermal technology can extend the shelf life of fresh-cut lotus root up to 9 days.