Studies On Physiological Characteristic And Preservation Techniques Of Fresh-cut Sugarcane

Sugarcane (Saccharum officinarum L.) of'Badila'cultivar were used in this study. All of the sugarcane were cut and dipped into three different preservatives after packaging. They were stored at room and refrigeration(12℃)temperature. By investigating the changes of sensory quality and testing some physiological characteristics such as juice rate,respiration,pH,total sugar,reducing sugar,sucrose,VC,alcohol,MDA and PPO,POD,SOD,CAT during storage. Study on the preservation effect of fresh-cut sugarcane. The results are as follows: 1,Preservatives had certain fresh-keeping effect on the fresh-cut sugarcane. They contributed differently to the water balance, the lower of PPO and POD activity, restrain the SOD and CAT activity in a proper level, cutdown the changes of MDA,make respiratory rate rose slowly, contents of total sugar,sucrose,VC and pH ,contents of reducing sugar and alcohol increased initially. Keeping the sugarcane freshen longer. 2,Different preservatives has different fresh-keeping effect on sugarcane. fresh-cut sugarcane would turn dry,browning and go mouldy during storage. The effect of the preservative (1% chitason +2% boric acid+4% sodium borate) was better than others. 3,Storage temperature affect fresh-keeping time limit of fresh-cut sugarcane stored in refrigeration(12℃) temperature can keep freshen longer than that stored in room temperature. In room temperature,fresh-cut sugarcane can store 15 days and fresh-cut sugarcane can store 21 days in refrigeration(12℃) temperature. So stored in refrigeration (12℃) temperature can delay the time of fresh-cut sugarcane rot. Totally ,this thesis introduce preservatives which were used in our sugarcane frsh-keeping experiment and their fresh-keeping effect, how the preservatives and low temperrature wokes on in fresh-cut sugarcane ,then the fresh-cut sugarcane can keep a good quality more long time than before. Think about the maximum economic obtain and the minimum costs,link theory with practice,we suggest that preservation of fresh-cut sugarcane can use (1% chitason +2% boric acid+4% sodium borate ) and a proper low temperature, the technique had testified by our experiment and practice in Wutong Guilin in this yeas. It can keep the fresh-cut sugarcane in a good quality about 20 days which stored in refrigeration and 15 days which stored in room.