文献类型：期刊文献

英文题名：X-ray irradiation delayed the browning development of fresh-cut bulbs of Lanzhou Lily (Lilium davidii) during room temperature storage

作者：Ji, Jie[1,2];Li, Xuehu[2,3];Guo, Xudong[1];Liu, Xiao[2,3];Ma, Xiaohui[1];Wang, Man[4];Wang, Yuanmeng[1];Jin, Ling[1,5,6];Zhou, Libin[2,3]

第一作者：Ji, Jie

通信作者：Jin, L[1];Zhou, LB[2]

机构：[1]Gansu Univ Chinese Med, Sch Pharm, Lanzhou 730000, Peoples R China;[2]Chinese Acad Sci, Inst Modern Phys, Biomed Ctr, Biophys Grp, Lanzhou 730000, Peoples R China;[3]Univ Chinese Acad Sci, Beijing 101408, Peoples R China;[4]Lanzhou Univ Technol, Lanzhou 730000, Peoples R China;[5]Northwest Collaborat Innovat Ctr Tradit Chinese Me, Lanzhou 730000, Peoples R China;[6]Gansu Pharmaceut Ind Innovat Res Inst, Lanzhou, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Sch Pharm, Lanzhou 730000, Peoples R China;[2]corresponding author), Chinese Acad Sci, Inst Modern Phys, Biomed Ctr, Biophys Grp, Lanzhou 730000, Peoples R China.|[10735]甘肃中医药大学;

年份：2025

卷号：226

外文期刊名：RADIATION PHYSICS AND CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001318173000001)】；

基金：This work was supported by grants from Crop Varietal Improvement and Insect Pests Control by Nuclear Radiation; National Key Research and Development Program (2022YFD1200705) ; Ecological Planting and Quality Assurance Project of Daodi Medicinal Materials (China Science and Technology for Traditional Chinese Medicine (2020) 153) ; China Agriculture Research System of MOF and MARA (CARS-21) ; Strategic Research and Consulting Project of Chinese Academy of Engineering (GS2021ZDA06) ; Engineering Research Center for Evaluation, Protection, and Utilization of Rare Traditional Chinese Medicine Resources.

语种：英文

外文关键词：Lanzhou lily; X-ray irradiation; Browning index; Enzymatic activity; Lipid peroxidation

摘要：Lanzhou lily (Lilium davidii var. willmottiae) are known for its medicinal and culinary attributes and has gained popularity among consumers due to its distinct regional characteristics. However, the bulbs of Lanzhou lily are prone to browning during storage at room temperature, thus adversely affecting their quality and value. X-ray irradiation, a chemical residue-free, and energy-efficient physical technology, emerges as a promising solution for preserving freshly harvested the bulbs of Lanzhou lily. In this study, different doses of X-ray irradiation (0-400 Gy) were applied to the bulbs of freshly harvested Lanzhou lily stored at room temperature, aiming to explore the impact of irradiation on browning development, total phenolic content, and the activity of related antioxidases. The results revealed that X-ray irradiation, especially at the dose of 50 Gy, can effectively maintain the appearance and reduce the browning index (BI) of freshly harvested Lanzhou lily bulbs during storage. The 50 Gy X-ray treatment is found to significantly suppress the activity of polyphenol oxidase (PPO) and peroxidase (POD) in the bulbs of freshly harvested Lanzhou lily, thereby reducing enzymatic browning. Additionally, the X-ray irradiation can elevate the activity of phenylalanine ammonia-lyase (PAL), superoxide dismutase (SOD) and catalase (CAT) while decreasing the accumulation of malondialdehyde (MDA). This led to the preservation of cell membrane integrity, mitigation of lipid peroxidation (LOP), and a delay in browning process. These findings suggested that treating with 50 Gy X-ray irradiation can effectively slow down the color changes of Lanzhou lily bulbs during the storage under the room temperature, which is beneficial to extend the shelf-life of freshly harvested Lanzhou lily bulbs.