热处理温度对橡胶木材淀粉含量的影响  

Effect of Heat Treatment Temperature on Starch Content of Rubberwood

作　　者：李冠君[1] 李彤彤[1] 李民[1] 李晓文[1] 蒋汇川[1] 陆全济[1] 李家宁[1] LI Guanjun;LI Tongtong;LI Min;LI Xiaowen;JIANG Huichuan;LU Quanji;LI Jianing(Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences / State Engineering and Technology Research Center for Key Tropical Crops, Danzhou, Hainan 571737, China)

机构地区：[1]中国热带农业科学院橡胶研究所/国家重要热带作物工程技术研究中心,海南儋州571737

出　　处：《热带作物学报》2019年第1期180-183,共4页Chinese Journal of Tropical Crops

基　　金：中国热带农业科学院基本科研业务费专项资金(No.17CXTD-05;No.1630022018020);现代农业产业技术体系建设专项资金天然橡胶改性与综合利用岗位科学家经费(No.CARS-33-JG2)

摘　　要：以水蒸气作为保护气,将橡胶木分别于125、145、165、185℃处理2h,采用高氯酸法测定热处理橡胶木中的淀粉含量。研究表明,橡胶木素材中的淀粉含量高达11.681%,经过高温(125、145、165、185℃)处理后,其淀粉含量逐步降低。当热处理条件为125、145、165、185℃/2 h时,测出相应的淀粉含量分别为8.792%、8.500%、7.529%、4.386%。结果表明,橡胶木中的淀粉含量随着热处理温度的升高而下降。FTIR谱图分析表明淀粉发生降解。The starch content changes of thermally modified rubberwood, which was treated at 125, 145, 165, 185℃ for 2 h, respectively, were assayed using perchloric acid. The starch content of fresh rubberwood was 11.681%, but it was significantly reduced after thermal modification. When the thermal treatment temperature was 125, 145, 165, 185 ℃/2 h, the starch content was 8.792%, 8.500%, 7.529%, 4.386%, correspondingly. The results indicated that the starch content of rubberwood decreased as the thermal treatment temperature increased. Starch was degraded during thermal treatment, and no new functional groups were detected through FTIR analysis.

关 键 词：橡胶木 淀粉 热处理 高氯酸 

分 类 号：S781.4[农业科学—木材科学与技术]