不同保鲜剂处理对岳西高山茭白贮藏效果的影响

Effects of Different Preservatives on the Storage Quality of Fewflower Wildrice Grown on the Mountains in Yuexi County.

为了探讨高山茭白可能的最佳贮藏保鲜措施,采集了安徽岳西高山茭白,研究了赤霉素、苯甲酸钠、茭白专用剂等不同保鲜剂处理对其低温贮藏效果的影响,并分析比较了不同处理措施对其贮藏过程中各项生理品质指标的影响。结果表明:各保鲜剂处理后的茭白呼吸强度随贮藏天数先逐渐上升,然后快速下降;赤霉素与苯甲酸钠混合液处理的茭白呼吸强度变化最慢,其次是茭白专用剂和赤霉素。所有处理的茭白底部与中部硬度均呈缓慢下降趋势,而其上部基本不变或略微增加;采用赤霉素与苯甲酸钠混合液处理的茭白各部位硬度随贮藏天数的变化小于其它处理。贮藏期内各处理茭白可溶性糖含量总体上呈下降趋势,其中赤霉素与赤霉素+苯甲酸钠混合液处理的茭白糖含量下降最慢;Vc和蛋白质含量也下降但各处理间差异不明显。综合分析表明:赤霉素与苯甲酸钠混合液处理对岳西高山茭白贮藏保鲜效果最好。

In order to search for the best preservative of fewflower wildrice on the mountains, the samples of fewflower wildrice grown on the mountains in Yuexi County were collected, and the effects of different preservatives on the storage quality and the indexes of the physiology and quality of fewilower wildrice were analyzed and compared. The results are as follows： The respiration rates of fewflower wildrice gradually increased with the storage days and then rapidly fell down. The slowest respiration rates occurred in the fewflower wildrice treated by the mixture of GA and Sodium Benzoate, followed by special reagent of fewflower wildrice and GA. The hardness in the bottom and central parts of fewflower wildrice fell down with the days and it was relatively stable or slightly increased in the upper parts. The variations of the hard- ness in all parts of fewflower wildrice treated by the mixture of GA and Sodium Benzoate were slower than those by other treatments. During the storage, the content of the soluble sugar generally decreased and the slowest decreasing rates were also found in fewflower wildrice treated by the mixture of GA and Sodium Benzoate. The Vc and protein contents also decreased and the differences between the treatments were insignificant. Therefore the treatment of GA＋ Sodium Benzoate mixture is the best method for the storage of fewflower wildrice.