Environment and Agro-biotechnologies Department, Centre de Recherche Public - Gabriel Lippmann, 41 Rue du Brill, 4422 Belvaux, Luxembourg.
Food Chem. 2012 Dec 15;135(4):2814-24. doi: 10.1016/j.foodchem.2012.07.028. Epub 2012 Jul 15.
The polyphenol (phenolic acids, flavanols and flavonols) and glycoalkaloid (α-chaconine and α-solanine) contents of potato tubers grown in Luxembourg were analyzed by UPLC-DAD and HPLC-MS/MS separately in peel (approx. 2mm), outer (approx. 1cm) and inner flesh. Polyphenol contents decreased from the peel via the outer to the inner flesh and differed among the cultivars. The cultivars Vitelotte and Luminella had the highest polyphenol contents (5202 and 572 μg/g dry weight (DW) in the outer flesh), whereas Charlotte and Bintje had the lowest contents (19.5 and 48.0 μg/g DW). Chlorogenic acid and its isomers (neo- and cryptochlorogenic acid) were the major polyphenols. Glycoalkaloid contents were highest in the peel and lowest in the inner flesh, values in the flesh were below guideline limits in all cultivars. In conclusion, potatoes contribute to the daily intake of polyphenols and their consumption, thereby, may have positive effects on health.
对在卢森堡种植的马铃薯块茎的多酚（酚酸、黄烷醇和黄酮醇）和糖苷生物碱（α-茄碱和α-龙葵碱）含量进行了分析，分别采用 UPLC-DAD 和 HPLC-MS/MS 法在皮（约 2mm）、外（约 1cm）和内肉中进行分析。多酚含量从皮到外肉再到内肉逐渐减少，不同品种之间存在差异。Vitelotte 和 Luminella 品种的多酚含量最高（外皮中的含量分别为 5202 和 572μg/g 干重（DW）），而 Charlotte 和 Bintje 的含量最低（19.5 和 48.0μg/g DW）。绿原酸及其异构体（新绿原酸和隐绿原酸）是主要的多酚。糖苷生物碱含量在皮中最高，在肉中最低，所有品种的肉中含量均低于指导限值。总之，马铃薯有助于人们日常摄入多酚，其消费可能对健康有积极影响。
