Institute of Tropical Agriculture and Forestry, Hainan University, No. 58, Renmin Avenue, Haikou 570228, Hainan, China.
Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, No. 4, Xueyuan Road, Haikou 571101, Hainan, China.
Molecules. 2018 Oct 29;23(11):2809. doi: 10.3390/molecules23112809.
Lam. is rich in phytochemical compounds especially glucosinolates (GSs) and isothiocyanates (ITCs), which are active compounds for cancer chemoprevention benefits of Brassicaceae vegetables. In this study, we determined the total contents of GSs and ITCs and their specific profiles in different tissues including seeds, stems, leaves and roots. Seeds (seeds with shell and seed kernel) showed significantly higher levels of total GSs and ITCs than that of other tissues. The hydrogen sulfide (H₂S) releasing capacity of total ITCs extracted from different tissues was determined by lead (II) acetate assay in 24-well plates. The H₂S releasing capacity of different tissues were evaluated and compared. seeds showed the highest H₂S releasing capacity, followed by roots, leaves and stems. Our results suggest that based foods may exhibit health benefits due to its GSs and ITCs contents that are the precursors for H₂S, in addition to the recognized action mechanisms of ITCs.
蔺草富含植物化学物质，特别是芥子油苷（GSs）和异硫氰酸盐（ITCs），这些都是芸薹属蔬菜具有癌症化学预防功效的活性化合物。在这项研究中，我们测定了不同组织（包括种子、茎、叶和根）中 GSs 和 ITCs 的总含量及其特定分布。种子（带壳和种仁的种子）中的总 GSs 和 ITCs 含量明显高于其他组织。通过 24 孔板中的醋酸铅测定法，测定了从不同组织中提取的总 ITCs 的硫化氢（H₂S）释放能力。评估和比较了不同组织的 H₂S 释放能力。结果表明，蔺草种子的 H₂S 释放能力最高，其次是根、叶和茎。我们的研究结果表明，蔺草食品可能具有健康益处，这归因于其 GSs 和 ITCs 含量是 H₂S 的前体，此外还归因于 ITCs 的公认作用机制。
