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Green and Efficient Extraction of Taraxacum kok-saghyz Natural Rubber and Its Structural Analysis

文献类型： 外文期刊

作者： Zheng, Jiagang 1 ; Zhang, Fuquan 2 ; Zhao, Qingyun 1 ; Yu, Rentong 1 ; Zhao, Yanfang 1 ; Liao, Xiaoxue 1 ; Liao, Lusheng 2 ;

作者机构： 1.Hainan Univ, Sch Mat Sci & Engn, Haikou 570228, Peoples R China

2.Chinese Acad Trop Agr Sci, Hainan Key Lab Nat Rubber Proc, Agr Prod Proc Res Inst, Zhanjiang 524001, Peoples R China

关键词： Taraxacum kok-saghyz; natural rubber; extraction; isolation; structure

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）

ISSN： 1661-6596

年卷期： 2025 年 26 卷 3 期

页码：

收录情况： SCI

摘要： Natural rubber (NR) is in high demand due to its excellent elasticity and physical and mechanical properties, but production is limited and NR is in short supply. There is an urgent need to find new alternative rubber sources. Taraxacum kok-saghyz (TKS), as a green, renewable, widely planted and high content rubber producing plant, has shown broad application prospects. The extraction process is the key to developing efficient, green, and high-purity Taraxacum kok-saghyz Natural Rubber (TKNR) to replace NR in various applications. In this study, TKS roots were processed through repeated boiling to remove inulin, followed by alkaline treatment with potassium hydroxide (KOH) to isolate lignin and facilitate cell wall disruption. Subsequent enzymatic hydrolysis using pectinase and cellulase enabled the dissolution of root-structure carbohydrates, thereby obtained TKNR. Structural characterization of TKNR was conducted and compared with that of NR. The results showed that the combined alkaline and enzymatic extraction methodology effectively isolates TKNR from TKS roots. Structural analysis reveals that TKNR closely resembles NR, having comparable molecular weight and distribution, crystallinity, and crosslinking networks, with both polymers primarily consisting of cis-1,4-polyisoprene.

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