Key Laboratory of Plant Resources and Beijing Botanical Garden, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Food Chem. 2017 Mar 15;219:490-495. doi: 10.1016/j.foodchem.2016.09.083. Epub 2016 Sep 14.
Vaccinium glaucoalbum, a perennial evergreen shrub, is naturally distributed in high-altitude areas. In this study, the composition and content of polyphenolic compounds in the fruit and leaf of V. glaucoalbum were characterized. In total, 24 chemical compounds were detected and identified by HPLC-DAD and HPLC-ESI-MS. Among all the compounds determined, 15 were anthocyanins and detected in fruit, 5 were flavonols and monitored in leaf, and 4 were chlorogenic acids and found in both fruit and leaf. The total anthocyanin content (TAC) of fruit (682mg/100gFW) was the highest among wild Vaccinium berries in China which have been investigated for now, and the total flavonol content of leaf was 2764mg/100gFW. The antioxidant activity of both fruit and leaf was assessed by DPPH and FRAP assays. Given its high TAC and strong antioxidant activity, the fruit of V. glaucoalbum has great potential in functional food.
蓝莓，一种多年生常绿灌木，自然分布于高海拔地区。本研究对蓝莓果实和叶片中的多酚类化合物组成和含量进行了分析。采用 HPLC-DAD 和 HPLC-ESI-MS 共检测并鉴定出 24 种化合物。在所测定的化合物中，15 种为花色苷，在果实中检测到，5 种为类黄酮，在叶片中监测到，4 种为绿原酸，在果实和叶片中均有发现。蓝莓果实中的总花色苷含量（TAC）（682mg/100gFW）在中国已研究过的野生越橘浆果中最高，叶片中的总类黄酮含量为 2764mg/100gFW。采用 DPPH 和 FRAP 测定法评估了果实和叶片的抗氧化活性。鉴于其高 TAC 和较强的抗氧化活性，蓝莓果实具有很大的开发功能性食品的潜力。
