College of Life Science, Sichuan Agricultural University, Ya'an 625014, China.
Molecules. 2023 Sep 27;28(19):6835. doi: 10.3390/molecules28196835.
is a plant with medicinal and edible properties, where the fruits are edible and the leaves have medicinal properties. However, there is limited research on the chemical and pharmacological activities of the plant. In this study, essential oils were extracted by steam distillation and their antioxidant and antibacterial activities were further evaluated. Gas chromatography-mass spectrometry (GC-MS) was used to identify the chemical components of fresh fruit essential oil (FREO) and fresh flower essential oil (FLEO), rapeseed oil (RO) and commercial oil (CEO). The results showed that 12 chemical components were identified in FREO. Twelve chemical components were identified from FLEO, four chemical components were identified from CEO, and thirteen chemical components were identified from RO. Except for RO, the other three oils were mainly composed of terpenes, among which limonene is the main chemical component. In terms of antioxidant activity, FREO, FLEO, CEO and RO have antioxidant capacity, mainly reflected in the scavenging DPPH free radicals and the iron ion chelating ability, and the antioxidant activity shows a certain dose effect, but the antioxidant activity of FLEO is the weakest among the four oils. Meanwhile, under the stress of hydrogen peroxide, CEO demonstrated a significant antioxidant protective effect on cells. It is worth mentioning that compared with the positive control, the FREO exhibited a better antibacterial rate. When the concentration of essential oil is 20 mg/mL, the bacteriostatic rate can reach 100%. Therefore, it could be a promising candidate among medicinal and edible plants.
是一种具有药用和食用属性的植物，其果实可食用，叶子具有药用特性。然而，关于该植物的化学成分和药理活性的研究有限。在这项研究中，通过水蒸气蒸馏法提取了精油，并进一步评估了其抗氧化和抗菌活性。气相色谱-质谱联用（GC-MS）用于鉴定新鲜果实精油（FREO）和新鲜花朵精油（FLEO）、菜籽油（RO）和市售精油（CEO）的化学成分。结果表明，FREO 中鉴定出 12 种化学成分。FLEO 中鉴定出 12 种化学成分，CEO 中鉴定出 4 种化学成分，RO 中鉴定出 13 种化学成分。除 RO 外，其他三种油主要由萜烯组成，其中柠檬烯是主要的化学组成部分。在抗氧化活性方面，FREO、FLEO、CEO 和 RO 均具有抗氧化能力，主要表现为清除 DPPH 自由基和铁离子螯合能力，且抗氧化活性呈现一定的剂量效应，但 FLEO 的抗氧化活性在四种油中最弱。同时，在过氧化氢的胁迫下，CEO 对细胞表现出显著的抗氧化保护作用。值得注意的是，与阳性对照相比，FREO 表现出更好的抑菌率。当精油浓度为 20mg/mL 时，抑菌率可达 100%。因此，它可能是一种有前途的药用和食用植物候选物。
