Mikulic-Petkovsek Maja, Krska Boris, Kiprovski Biljana, Veberic Robert
Univ. of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Chair for Fruit, Viticulture and Vegetable Growing, Ljubljana, Slovenia.
Mendel Univ. in Brno, Faculty of Horticulture, Valticka 337, 69144, Lednice, Czech Republic.
J Food Sci. 2017 Mar;82(3):647-658. doi: 10.1111/1750-3841.13643. Epub 2017 Feb 9.
In this study, biochemical profile of fruits of 9 Sorbus genotypes was analyzed. The content of total sugars ranged from 69.7 g/kg ('Titan') to 217.5 g/kg (Sorbus torminalis) and total organic acids from 17.7 g/kg ('Businka') to 40.2 g/kg (S. torminalis). The highest content of total anthocyanins had 'Burka' (871 mg/kg FW) and 'Businka' (856 mg/kg FW). Quercetin derivatives represented more than 95% of total flavonols. 'Alaja krupnaja' had 3.5- to 29-fold higher rutin content than other analyzed genotypes. S. torminalis fruits had the greatest diversity of isorhamnetin and kaempferol derivatives. Chlorogenic acid was the major hydroxycinnamic acid and its share was 33% to 73% of total analyzed hydoxycinnamic acid derivatives. The richest in chlorogenic acid were 'Krasavica' and 'Alaja krupnaja' fruits. Cultivar 'Businka' had the highest content of epicatechin (40.7 mg/kg) and neochlorogenic acid (1061 mg/kg). Different procyanidin oligomers were detected among flavanols in Sorbus fruits. The highest content of total flavanols was measured in 'Alaja Krupnaja' fruits. Cultivars 'Krasavica' (84.5 mg/kg) and 'Burka' (85.1 mg/kg) had 1.2- to 6.9-fold higher amount of total carotenoids. 'Businka' was highlighted as the richest in total tannin and phenolic contents (3768 mg GAE/kg) and consequently, it had the highest antioxidant activity (57.6 mM TE/kg FW). Being abundant in polyphenolics, some extracts of Sorbus genotypes, for example, 'Businka,' 'Burka,' and 'Alaja krupnaja' could serve as valuable resource of bioactive compounds to food and pharmaceutical industries.
在本研究中，分析了9种花楸基因型果实的生化特征。总糖含量范围为69.7克/千克（“泰坦”）至217.5克/千克（欧洲花楸），总有机酸含量范围为17.7克/千克（“布辛卡”）至40.2克/千克（欧洲花楸）。总花青素含量最高的是“布尔卡”（871毫克/千克鲜重）和“布辛卡”（856毫克/千克鲜重）。槲皮素衍生物占总黄酮醇的95%以上。“阿拉亚大果”的芦丁含量比其他分析基因型高3.5至29倍。欧洲花楸果实中异鼠李素和山奈酚衍生物的多样性最大。绿原酸是主要的羟基肉桂酸，其占总分析羟基肉桂酸衍生物的比例为33%至73%。绿原酸含量最丰富的是“克拉萨维察”和“阿拉亚大果”的果实。品种“布辛卡”的表儿茶素（40.7毫克/千克）和新绿原酸（1061毫克/千克）含量最高。在花楸果实的黄烷醇中检测到了不同的原花青素低聚物。“阿拉亚大果”果实中的总黄烷醇含量最高。品种“克拉萨维察”（84.5毫克/千克）和“布尔卡”（85.1毫克/千克）的总类胡萝卜素含量高1.2至6.9倍。“布辛卡”被突出显示为总单宁和酚类含量最丰富的（3768毫克没食子酸当量/千克），因此，其具有最高的抗氧化活性（57.6毫摩尔 Trolox 当量/千克鲜重）。由于富含多酚类物质，一些花楸基因型的提取物，例如“布辛卡”、“布尔卡”和“阿拉亚大果”，可以作为食品和制药行业生物活性化合物的宝贵资源。
