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首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Chemical characterisation of Crataegus azarolus L. fruit from 14 genotypes found in Tunisia.
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Chemical characterisation of Crataegus azarolus L. fruit from 14 genotypes found in Tunisia.

机译：来自突尼斯的14个基因型的Crataegus azarolus L.果实的化学特征。

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Fruits from genotypes of 14 Crataegus were collected at the full-ripe stage at three locations in Tunisia. Fresh fruit juice was analysed for some chemical properties. The juice content [% (v/w)], pH, titratable acidity (g malic acid 100 ml-1), and formol index (ml NaOH 100 ml-1 juice), and the contents of total soluble solids ( degrees Brix), total sugars [g 100 g-1 fresh fruit weight (FW)], reducing sugars (g 100 g-1 FW), and salts (mg 100 g-1 FW), were established as: 2.0-11.9%, 3.2-4.2, 0.9-1.9, 2.8-4.4, 16.3-21.5, 5.3-17.0, 5.8-7.9, and 0.6-0.7, respectively. Fresh juice also contained vitamin C (31.4 mg ascorbic acid 100 g-1 FW), and the mineral elements; calcium (285.6-399.1 mg 100 g-1 FW), sodium (30.4-43.8 mg 100 g-1 FW), and potassium (138.5-169.2 mg 100 g-1 FW). The concentration of phenols ranged from 498.5-1,477 mg 100 g-1 FW. This study showed great variation betweenfruit from the 14 genotypes. Principal component analysis and hierarchical cluster analysis allowed the separation of hybrids of Crataegus species and varieties. Two groups and three sub-groups were identified. Eight genotypes were distinguished as C. azarolus var. aronia, and two others as C. azarolus var. eu-azarolus. The two genotypes of C. oxyacanthus ssp. monogyna were completely different from the other genotypes. Two genotypes were putative hybrids: C. azarolus var. eu-azarolus x C. azarolus var. aronia, and C. oxyacanthus ssp. monogyna x C. azarolus var. aronia. Fruit from C. oxyacanthus ssp. monogyna exhibited the highest phenol contents, and red-coloured fruit from C. azarolus var. eu-azarolus also showed high phenol content, whereas most C. azarolus var. aronia genotypes, with yellow fruit, had the highest percentage of juice and low phenol contents. Our results demonstrate the opportunity to improve and select genotypes of C. azarolus, especially those having fruit with high vitamin C and phenol contents with high anti-oxidant activities.
机译：在突尼斯的三个地点，在成熟阶段收集了14种Crataegus 基因型的果实。分析了新鲜果汁的一些化学性质。果汁含量[％（v / w）]，pH，可滴定的酸度（苹果酸100 ml -1 ）和甲酚指数（NaOH 100 ml -1 ）果汁），总可溶性固形物含量（白利糖度），总糖[g 100 g -1 新鲜水果重量（FW）]，还原糖（g 100 g -1 < / sup> FW）和盐（mg 100 g -1 FW）被确定为：2.0-11.9％，3.2-4.2、0.9-1.9、2.8-4.4、16.3-21.5、5.3 -17.0、5.8-7.9和0.6-0.7。新鲜果汁还含有维生素C（31.4 mg抗坏血酸100 g -1 FW）和矿物质元素。钙（285.6-399.1 mg 100 g -1 FW），钠（30.4-43.8 mg 100 g -1 FW）和钾（138.5-169.2 mg 100 g < sup> -1 FW）。 100 g -1 FW的酚浓度范围为498.5-1,477 mg。这项研究显示14种基因型的水果之间存在很大差异。主成分分析和层次聚类分析允许分离 Crataegus 物种和品种的杂种。确定了两个小组和三个小组。八个基因型被区分为 C。阿扎鲁鲁斯变种 aronia 和另外两个 C。阿扎鲁鲁斯变种 eu-azarolus 。 C的两种基因型。 oxyacanthus ssp。 monogyna 与其他基因型完全不同。两种基因型是推定的杂种：C。阿扎鲁鲁斯变种 eu-azarolus x C。阿扎鲁鲁斯变种 aronia 和 C。 oxyacanthus ssp。 monogyna x C。阿扎鲁鲁斯变种 aronia 。来自 C的水果。 oxyacanthus ssp。 monogyna 的苯酚含量最高，而 C的果实呈红色。阿扎鲁鲁斯变种 eu-azarolus 也显示出高的酚含量，而大多数 C。阿扎鲁鲁斯变种带有黄色水果的 aronia 基因型的果汁比例最高，酚含量低。我们的结果证明了改善和选择C基因型的机会。 azarolus ，尤其是那些具有高维生素C和高酚含量且具有高抗氧化活性的水果。

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