文献类型：期刊文献

英文题名：A novel, eco-friendly, and efficient agar extraction method using E-beam and its mechanism

作者：Liang, Yulin[1];Mao, Xuanzhi[6,7];Mu, Liuhua[5];Sheng, Shiqi[4];Wang, Minglei[2,3]

机构：[1]Guangxi Med Univ, Canc Hosp, 71 Hedi Rd, Nanning, Guangxi, Peoples R China;[2]Swiss Fed Inst Technol, Inst Environm Engn, CH-8093 Zurich, Switzerland;[3]Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China;[4]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[5]Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China;[6]Soochow Univ, State Key Lab Radiat Med & Protect, Sch Radiol & Interdisciplinary Sci RAD X, Suzhou 215123, Peoples R China;[7]Soochow Univ, Collaborat Innovat Ctr Med, Jiangsu Higher Educ Inst, Suzhou 215123, Peoples R China

年份：2026

卷号：384

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20254919655784);WOS:【SCI-EXPANDED(收录号:WOS:001637061100001)】；

基金：We greatly appreciate the support from the National Natural Science Foundation of China (No. 12305408, No. 22206081, No. 12405036) , the Fundamental Research Funds for the Central Universities (No. 2232025D-01) , the Sino-Swiss Science and Cooperation Technology program 2021, and the Postdoctoral Fellowship Program of CPSF under Grant Number GZC20232610.

语种：英文

外文关键词：Agar; E-beam; Green extraction; Agar characterization; Extraction mechanism

摘要：Traditional agar extraction methods require the use of high temperatures, harsh chemicals, and large amounts of water, resulting in environmental pollution and energy consumption. In this study, a green and efficient method for agar extraction using electron beam (e-beam) irradiation was developed. The process involved irradiation of red algae with e-beam at various absorbed doses to obtain agar. The effects of absorbed dose on agar structure and physicochemical properties were investigated. Indicating that an absorbed dose of 50 kGy is sufficient for the agar to meet the fundamental commercial requirements with significantly reduced processing time and energy consumption. Furthermore, the thermal decomposition temperature directly decreased by 27.6 degrees C, and through DSC testing, it was found that the melting peak decreased by nearly 20 degrees C. The mechanism of e-beam-induced agar extraction was also studied through ESR and found that e-beam irradiation caused structural damage to the backbone molecular chains of the algae, which facilitated the release of agar molecules during extraction. The green e-beam method developed in this study has great potential for a wide range of applications of agar with reduced environmental impact and improved efficiency.