Data from: Comparison of chemical composition in the buds of Aralia elata from different geographical origins of China

Aralia elata buds contain many nutrients and have a pleasant taste with
unique flavor. Previous studies mainly focused on triterpene saponins in
the root bark of this species, but little information existed concerning
other chemical components, especially in the buds. To better understand
the nutritional value of Aralia elata, we compared total flavonoids, total
saponins, phenolic compounds and mineral elements contents in the buds of
Aralia elata collected from eight different geographical regions (S1:
Benxi; S2: Linjiang; S3: Pingwu; S4: Enshi; S5: Changbaishan; S6:
Shangzhi; S7: Xiaoxinganling and S8: Harbin) in China. The results showed
that the basic composition in the buds presented a wide variation noticed
by ash (8.76 to 10.35%), crude fiber (5.38 to 11.07%), polysaccharides
(33.85 to 46.79 mg/g), total flavonoid content (4.06 to 48.63 mg/g) and
total saponins (13.62 to 27.85 mg/g). UPLC combined with LC-MS/MS method
was used for the phenolic compounds analysis, and eleven phenolic
compounds were identified and quantified in the 8 samples. The total
phenolic content in Enshi (S4) was significantly higher than others, and
quercetin was the predominant phenolic compound in this sample. We used
ICP-OES to identify and quantify nine mineral elements in the buds. The Fe
and Cu contents in S5 were much higher than that of others. We got maximum
Mg, Mn, Co and Ni contents in S4, and found rich Zn content in S7.
Moreover, the maximum estimated quantity of Ca and Sr contents were found
in S8. This study indicated that the chemical composition in the buds of
Aralia elata was obviously affected by geographical origin. Our results
provided an essential theoretical basis on quality evaluation of Aralia
elata buds in food production field.

龙牙楤木（Aralia elata）芽富含多种营养成分，口感宜人且风味独特。既往研究多聚焦于该物种根皮中的三萜皂苷，但关于其他化学成分的报道较少，尤其是其芽部的相关研究尤为匮乏。为深入解析龙牙楤木的营养价值，本研究对采集自中国8个不同地理区域的龙牙楤木芽部总黄酮、总皂苷、酚类物质及矿质元素含量进行了比较分析，各采样点分别为S1：本溪；S2：临江；S3：平武；S4：恩施；S5：长白山；S6：尚志；S7：小兴安岭；S8：哈尔滨。结果显示，龙牙楤木芽部的基础成分存在显著差异：灰分含量为8.76%~10.35%，粗纤维含量为5.38%~11.07%，多糖含量为33.85~46.79 mg/g，总黄酮含量为4.06~48.63 mg/g，总皂苷含量为13.62~27.85 mg/g。本研究采用超高效液相色谱（UPLC）结合液相色谱-串联质谱（LC-MS/MS）法对酚类物质进行分析，在8份样品中共鉴定并定量得到11种酚类化合物。恩施样品（S4）的总酚含量显著高于其余采样点，且槲皮素为该样品中的优势酚类成分。本研究采用电感耦合等离子体发射光谱（ICP-OES）对芽部的9种矿质元素进行鉴定与定量分析：S5样品中的铁（Fe）与铜（Cu）含量显著高于其余采样点；恩施样品（S4）的镁（Mg）、锰（Mn）、钴（Co）及镍（Ni）含量均为所有采样点最高；S7（小兴安岭）样品中锌（Zn）含量较为丰富；此外，S8（哈尔滨）样品中的钙（Ca）与锶（Sr）含量达到所有采样点最高值。本研究表明，龙牙楤木芽部的化学成分显著受采样地理区域的影响。本研究结果可为食品生产领域中龙牙楤木芽部的品质评价提供重要的理论依据。