CAJ | 학술논문

为了进一步分析引种云南红梨在贵州的果品品质及着色相关酶活性变化，采用紫外分光光度及中和滴定的方法对早白蜜、中熟32、中熟35及云红梨1号在果实发育过程中的可溶性糖、可滴定酸及PAL酶活性的变化规律进行了研究。结果表明：4个品种发育至果实成熟时，早白蜜可溶性糖含量最高（每克样品含9．77％），中熟35的可滴定酸含量降幅最大（63％），早白蜜降酸最晚，降速最快；PAL酶活性随着果实发育不断下降，至果实成熟时达到最低酶活。参试的4个品种中，早白蜜风味品质较优；PAL酶动态变化与参试品种果实着色不相关。
위료진일보분석인충운남홍리재귀주적과품품질급착색상관매활성변화，채용자외분광광도급중화적정적방법대조백밀、중숙32、중숙35급운홍리1호재과실발육과정중적가용성당、가적정산급PAL매활성적변화규률진행료연구。결과표명：4개품충발육지과실성숙시，조백밀가용성당함량최고（매극양품함9．77％），중숙35적가적정산함량강폭최대（63％），조백밀강산최만，강속최쾌；PAL매활성수착과실발육불단하강，지과실성숙시체도최저매활。삼시적4개품충중，조백밀풍미품질교우；PAL매동태변화여삼시품충과실착색불상관。
To get a further analysis about the quality performance and changes of enzyme activities metabolic related in Yunnan red pear,four cultivars,including Zaobaimi,Zhongshu 32,Zhongshu 35 and Yunhongli 1 ,were used to study the transformation law about soluble sugar,titratable acid and PAL activities during development process by ultraviolet spectrophotometer and neutralization titration method. Results:Zaobaimi cultivar got the highest accumulation of soluble sugar content which was up to 9.77%per gram during the fruit mature period.Titratable acid content of four varieties maintained at a lower level in mature fruit,Zhongshu 3 5 got the largest decline which reached 6 3% as development stage among them,Zaobaimi dropped acid at the latest but got the fastest speed.At the early stage of the fruit development,PAL enzyme activity was higher,but falling as the fruit mature.When it was close to ripe , the PAL got the lowest enzyme activity.Conclusion:Flavor quality of Zaobaimi was better among the selected four varieties,and PAL enzyme was not associated with the fruit coloring in tested varieties.