postharvest changes in phenolic compounds and antioxidant capacity of apples cv.
jonagold growing in different locations in europe
苹果采后存储中酚类化合物和抗氧化能力变化.jonagold在欧洲不同地区
łysiak g.p. 1, michalska a.2*, wojdyło a.2
1 department of dendrology, pomology and nursery production, faculty of horticulture and landscape architecture, poznan
university of life sciences, ul. dąbrowskiego 159, poznań, poland
2 department of fruit, vegetable and plant nutraceutical technology, faculty of biotechnology and food science, wrocław
university of environmental and life sciences, ul. chełmońskiego 37, 51-630 wrocław, poland;
abstract
apples cv. 'jonagold' of the same quality were collected from four orchards in three european countries. the orchards differed in terms of longitude, latitude and microclimate. the apples were stored in controlled atmosphere storage for six months. both after harvest and after storage the apples were compared in terms of physical and chemical properties. differences in firmness, titratable acidity, total soluble solids, mass varied not more than 11%. storability was little affected by harvest location. the sum of polyphenols was more strongly influenced by storage than by orchard location. the strongest degradation of flavonols after storage was in apples grown in the most southern region of harvest (italy). the content of (+)- catechin and (-)-epicatechin depended on harvest location and its strong increase resulted in higher content of procyanidins and flavanols after storage. changes in individual polyphenols were significant after storage and depended on harvest location.
苹果从欧洲三个国家的四个果园采集到了品质相同的jonagold。果园的经度、纬度和小气候各不相同。苹果在控制气氛下贮藏六个月。对苹果采后和贮藏后的理化性质进行了比较。硬度、可滴定酸度、总可溶性固形物、质量变化不超过11%。采收地点对贮藏性影响不大。贮藏对多酚总量的影响大于果园位置。贮藏后黄酮醇的降解最严重的是在收获地最南部地区（意大利）种植的苹果。（+）-儿茶素和（-）-表儿茶素的含量取决于采摘地点，其含量的强烈增加导致贮藏后原花青素和黄烷醇的含量较高。贮藏后多酚含量的变化与采收地点有关。
keywords
malus domestica, orchard geographical location, storage, polyphenols, postharvest quality