Jiangsu Key Laboratory of Marine Bioresources and Environment, Huaihai Institute of Technology, 59 Cangwu Road, Haizhou 222005, China; Jiangsu Key Laboratory of Marine Biotechnology, 59 Cangwu Road, Haizdhou 222005, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, 59 Cangwu Road, Haizhou 222005, China.
Int J Biol Macromol. 2019 Jun 1;130:640-644. doi: 10.1016/j.ijbiomac.2019.03.022. Epub 2019 Mar 3.
Cactus Opuntia dillenii polysaccharide (ODP) exhibits antibacterial and antioxidant activities and can form semipermeable coatings. This study explored on extending the shelf-life of fresh-cut potato with ODP-based edible coatings. Fresh-cut potatoes were treated with ODP solutions of different concentrations (0.5%, 1% and 1.5%) and stored at 5 °C for 5 d. Treatment with ODP-based edible coatings effectively suppressed browning, microbial growth and respiration rate and inhibited weight loss and total sugar formation during storage at 5 °C compared with the control (p < 0.05). Based on the efficiency of ODP-based edible coatings, 1% was considered the optimum dose for preservation of fresh-cut potatoes. Results demonstrated that treatment with ODP-based edible coatings may be a practical method for extending the shelf-life of fresh-cut potatoes.
仙人掌梨果仙人掌多糖（ODP）具有抗菌和抗氧化活性，并能形成半透性涂层。本研究探索了基于 ODP 的可食用涂层对鲜切土豆货架期的延长作用。将鲜切土豆用不同浓度（0.5%、1%和 1.5%）的 ODP 溶液处理，并在 5°C 下储存 5 天。与对照组相比，基于 ODP 的可食用涂层处理能有效抑制褐变、微生物生长和呼吸速率，并抑制在 5°C 下储存过程中的失重和总糖形成（p<0.05）。基于 ODP 基可食用涂层的效率，1%被认为是保鲜鲜切土豆的最佳剂量。结果表明，基于 ODP 的可食用涂层处理可能是延长鲜切土豆货架期的一种实用方法。
