Major Nikola, Perković Josipa, Palčić Igor, Bažon Iva, Horvat Ivana, Ban Dean, Goreta Ban Smiljana
Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Hugues 8, 52210 Poreč, Croatia.
Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 1, 10000 Zagreb, Croatia.
Antioxidants (Basel). 2022 Aug 10;11(8):1547. doi: 10.3390/antiox11081547.
Shallots are a perennial plant from the Alliaceae family, classified with the common onion under the name of the Aggregatum group. The term shallot is also used for diploid and triploid viviparous onions, known as (Moench) Schrad and Clementi ex Vis., respectively. In this study, we compared the dry matter, pyruvic acid content, sugar content, flavonoid content, antioxidant capacity and mineral composition of 34 shallot accessions falling into three shallot species (, and Aggregatum). Shallot accessions belonging to the and groups are characterized by high dry matter content (around 25%), of which a little less than 50% is formed of inulin-type sugars, polysaccharides, considered an excellent prebiotic with beneficial effects on human health. On the other hand, accessions belonging to the Aggregatum group have lower dry matter content and, as a result, lower pungency (measured as pyruvic acid content), making them more suitable for fresh consumption by a broader range of consumers, but, at the same time, abundant in phenolic compounds, especially quercetin and isorhamnetin glycosides. We also observed a greater biodiversity among accessions within the Aggregatum group in all the analyzed physico-chemical parameters compared to the other shallot groups. The investigated shallot accessions have an excellent in vitro antioxidant capacity, as well as excellent nutritional properties.
葱是一种来自葱科的多年生植物，与普通洋葱一同被归类于葱属合被组。“葱”这个术语也用于指二倍体和三倍体胎生洋葱，分别称为（蒙奇）施拉德和克莱门蒂（维斯改）。在本研究中，我们比较了34份葱种质的干物质、丙酮酸含量、糖分含量、黄酮类化合物含量、抗氧化能力和矿物质组成，这些种质分属于三种葱种（、和葱属合被组）。属于和组的葱种质的特点是干物质含量高（约25%），其中略少于50%由菊粉型糖类、多糖组成，多糖被认为是一种对人体健康有有益作用的优质益生元。另一方面，属于葱属合被组的种质干物质含量较低，因此辛辣味较低（以丙酮酸含量衡量），这使得它们更适合更广泛的消费者鲜食，但同时，它们富含酚类化合物，尤其是槲皮素和异鼠李素糖苷。与其他葱组相比，我们还观察到葱属合被组内种质在所有分析的理化参数方面具有更大的生物多样性。所研究的葱种质具有出色的体外抗氧化能力以及优良的营养特性。
