辐射研究与辐射工艺学报2025，Vol.43Issue(3)：33-42,10.DOI:10.11889/j.1000-3436.2024-0085
电子束辐照对橡胶草水提液的菊糖含量及抗氧化活性的影响
Effects of electron beam irradiation on inulin content and antioxidant activities of Taraxacum kok-saghyz Rodin aqueous extracts
摘要
Abstract
To investigate the effects of irradiation on inulin extraction and the antioxidant activities of Taraxacum kok-saghyz Rodin(TKS)roots in this study,high-energy electron-beam irradiation was performed to treat dried TKS root powder.Subsequently,its physical structure,the inulin content of its aqueous extracts,and its antioxidant activities at different absorbed doses(0 kGy,10 kGy,30 kGy,and 50 kGy)were analyzed.The results showed that compared with the control group,the irradiation groups exhibited uneven distributions of surface tissue characterized by holes,cracks,and fragments;an increase in the absorption intensity of characteristic peaks in the infrared spectrum;and a decrease in the intensity of diffraction peaks in the X-ray diffraction spectrum.The inulin contents in the aqueous extracts of the irradiation groups increased significantly,with the most significant increase observed in the 30 kGy irradiation group,i.e.,19.27%higher than that of the control group.Following electron-beam irradiation,the 1,1-Diphenyl-2-picrylhydrazyl(DPPH)and 2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)diammonium salt(ABTS)radical-scavenging abilities as well as the ferric-reduction ability of the aqueous extracts enhanced significantly(p<0.05).At an assay concentration of 20 mg/mL,the DPPH and ABTS radical-scavenging abilities and the ferric-reduction ability of the 50 kGy irradiation group increased by 89.12%,9.13%,and 224.41%,respectively,compared with those of the control group.In summary,treatment with electron-beam irradiation significantly enhances the inulin content and antioxidant activities of aqueous extracts of dried TKS root powder at absorbed doses of 10‒50 kGy.This study provides a theoretical reference for the application of electron-beam irradiation for the efficient extraction and comprehensive utilization of inulin from TKS.关键词
橡胶草/电子束辐照/菊糖/提取/抗氧化活性Key words
Taraxacum kok-saghyz Rodin/Electron beam irradiation/Inulin/Extraction/Antioxidant activities分类
能源科技引用本文复制引用
魏利英,周利斌,李雪虎,曲颖,胡云霞,司怀军,辛志君..电子束辐照对橡胶草水提液的菊糖含量及抗氧化活性的影响[J].辐射研究与辐射工艺学报,2025,43(3):33-42,10.基金项目
核能开发科研项目"核辐射作物品种改良与害虫防控"、国家重点研发计划(2022YFD1200705)、甘肃省普安康药业有限公司技术开发项目(IMPSK2024073)资助 Supported by the Project of"Crop Varietal Improvement and Insect Pests Control by Nuclear Radiation",the National Key Research and Development Program(2022YFD1200705),and the Technical Development Project of Gansu Puankang Pharmaceutical Co.,Ltd.(IMPSK2024073) （2022YFD1200705）
