Abstract

Myrtaceae fruits (Myrceugenia obtusa, Luma apiculata, and Luma chequen) were used as food and medicine by Chilean indigenous people. This study aimed to evaluate the bioactive properties of these berry-type fruits. The antioxidant capacity determined by the FRAP assay varied between 10.4 and 646.9 mmol Fe⁺²/g, while the antibacterial activity against Staphylococcus aureus and Salmonella typhi was 0 − 33 mm and 0 − 7.33 mm, respectively. All the extracts were rich in polyphenols and showed low cytotoxicity. Overall, M. obtusa presented dissimilar results compared to those of L. apiculata and L. chequen, encouraging the use of these native fruits as food, nutraceutical, or pharmacological ingredients.

摘要

桃金娘科果实（Myrceugenia obtusa、Luma apiculata和Luma chequen）被智利土著人用作食物和药物。本研究旨在评估这些浆果类水果的生物活性特性。FRAP 测定的抗氧化能力在 10.4 和 646.9 mmol Fe ^{+2 /g 之间变化，而对}金黄色葡萄球菌和伤寒沙门氏菌的抗菌活性分别为 0 - 33 mm 和 0 - 7.33 mm。所有提取物均富含多酚，且细胞毒性低。总体而言，与L. apiculata和L. chequen相比， M. obtusa呈现出不同的结果，鼓励使用这些本地水果作为食物、营养品或药理成分。