Garzón G Astrid, Narváez-Cuenca Carlos-Eduardo, Vincken Jean-Paul, Gruppen Harry
Departamento de Química, Universidad Nacional de Colombia, AA 14490 Bogotá, Colombia.
Departamento de Química, Universidad Nacional de Colombia, AA 14490 Bogotá, Colombia.
Food Chem. 2017 Feb 15;217:364-372. doi: 10.1016/j.foodchem.2016.08.107. Epub 2016 Aug 29.
Berries of Colombian Euterpe oleracea Mart. were analyzed for total phenolic content (TPC), anthocyanin (ACN) content, and antioxidant activity. Additionally, reversed-phase ultra-high performance liquid chromatography with photodiode array detection (RP-UHPLC-PDA) and heated electrospray ionization (HESI) multistage mass spectrometry (MS(n)) were used to determine the composition of phenolic compounds. Anthocyanin content was 0.57±0.39mg cyanidin-3-glucoside/g fresh weight (FW) and TPC was 6.07±2.17mg gallic acid equivalent (GAE)/g FW. The ABTS radical scavenging activity was 3.1±1.3μmol Trolox equivalents (TE)/100g FW, whereas the DPPH value was 2693.1±332.8μmol TE/100g FW. Overall, results show that Colombian açai has a more diverse polyphenolic profile and higher antioxidant activity than Brazilian açai. This information could be useful in authentification procedures to differentiate Brazilian açai from Colombian açai when used as an alternative for the supply of this fruit during the time of shortage in Brazil.
对哥伦比亚油棕榈（Euterpe oleracea Mart.）的浆果进行了总酚含量（TPC）、花青素（ACN）含量及抗氧化活性分析。此外，采用带有光电二极管阵列检测的反相超高效液相色谱法（RP-UHPLC-PDA）和加热电喷雾电离（HESI）多级质谱法（MS(n)）测定酚类化合物的组成。花青素含量为0.57±0.39毫克矢车菊素-3-葡萄糖苷/克鲜重（FW），总酚含量为6.07±2.17毫克没食子酸当量（GAE）/克FW。ABTS自由基清除活性为3.1±1.3微摩尔 Trolox当量（TE）/100克FW，而DPPH值为2693.1±332.8微摩尔TE/100克FW。总体而言，结果表明，与巴西阿萨伊果相比，哥伦比亚阿萨伊果具有更多样化的多酚谱和更高的抗氧化活性。在巴西水果短缺期间，当哥伦比亚阿萨伊果被用作这种水果供应的替代品时，该信息可能有助于在鉴别程序中区分巴西阿萨伊果和哥伦比亚阿萨伊果。
