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首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Changes in fruit quality in black chokeberry (Aronia melanocarpa) during maturation
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Changes in fruit quality in black chokeberry (Aronia melanocarpa) during maturation

机译：黑苦莓（Aronia melanocarpa）成熟期间果实品质的变化

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摘要

Black chokeberry fruits are rich in anthocyanins and can be used as a raw material for the production of natural food colourants. Fruit quality was studied during maturation in three true black chokeberry cultivars and in three cultivars derived through hybridization between chokeberry and rowans (Sorbus spp.). For each trait studied, the three black chokeberry cultivars were very similar. The three hybrid cultivars differed however from the black chokeberry cultivars for some traits in both timing and size of the response which indicates that cultivar selection for improvement of fruit quality can hardly be done among the true black chokeberry genotypes but may be efficient when the hybrid cultivars are also included. For the black chokeberry cultivars, maximum berry weight was reached already by the 22 August. Anthocyanin content increased by 180% during the period mid-August to mid-September. Meanwhile, the content of undesirable brown compunds increased by 100%. The content of malic acid remained unchanged whereas total acidity decreased in the initial part of the study period. Variation among sampling dates in total acidity was negatively correlated with variation in berry weight which suggests that dilution by water uptake affects total acidity. For the true black chokeberry cultivars, optimal harvest date was determined to be 8 September for this trial, when both mean berry weight and anthocyanin content had reached their maximum. By harvesting one week earlier browning was reduced by 32% but with a simultaneous decrease in anthocyanin content of 20%.
机译：黑苦莓果实富含花青素，可用作生产天然食用色素的原料。在三个真正的黑苦莓品种以及在苦莓和花ans杂交后衍生的三个品种中，研究了果实品质。对于每个研究的性状，三个黑苦莓品种非常相似。这三个杂交品种在响应时间和大小方面都与黑苦莓品种有所不同，这表明在真正的黑苦莓基因型中很难选择提高果实品质的品种，但当杂交品种时可能是有效的。也包括在内。对于黑苦莓品种，到8月22日已经达到最大浆果重量。在8月中旬至9月中旬期间，花色苷含量增加了180％。同时，不良的褐色化合物的含量增加了100％。在研究初期，苹果酸含量保持不变，而总酸度下降。采样日期之间总酸度的变化与浆果重量的变化呈负相关，这表明吸水稀释会影响总酸度。对于真正的黑苦莓品种，该试验的最佳收获日期被确定为9月8日，此时平均浆果重量和花色苷含量均达到最大值。通过一周的收获，褐变减少了32％，但花青素含量同时减少了20％。

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