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首页> 外文期刊>Journal of Applied Polymer Science >Evaluating cell wall structure and composition of developing cotton fibers using Fourier transform infrared spectroscopy and thermogravimetric analysis
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Evaluating cell wall structure and composition of developing cotton fibers using Fourier transform infrared spectroscopy and thermogravimetric analysis

机译：使用傅里叶变换红外光谱和热重分析法评估发育中的棉纤维的细胞壁结构和组成

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摘要

Universal attenuated total reflectance Fourier transform infrared (UATR-FTIR) spectroscopy and thermogravimetric analysis (TGA) were used to investigate the structural changes of cotton (Gossypium hirsutum L.) fibers as a function of developmental programming. The presence of noncellulosic compounds (wax, protein, hemicelluloses, pectic substances, amino acids, etc.) was evident from FTIR spectra of fibers at 10, 14, 17, and 20 dpa (day postanthesis). The vibration corresponding to the noncellulosic compounds disappeared at 36 dpa. Furthermore, independent TGA analysis supported the results obtained with FTIR, showing that the transition from primary cell wall synthesis to secondary cell wall synthesis occurs at or around 20 dpa. This study is the first to report on the use of the UATR-FTIR and TGA to elucidate structural changes during cotton fiber development. (C) 2007 Wiley Periodicals, Inc.
机译：通用衰减全反射傅立叶变换红外光谱（UATR-FTIR）光谱和热重分析（TGA）用于研究棉纤维的结构变化与发育程序的关系。从纤维在10 dpa，14 d，17 dpa和20 dpa（花后天）的FTIR光谱中可以明显看出非纤维素化合物（蜡，蛋白质，半纤维素，果胶物质，氨基酸等）的存在。与非纤维素化合物相对应的振动在36 dpa时消失。此外，独立的TGA分析支持FTIR获得的结果，表明从原代细胞壁合成到次生细胞壁合成的转变发生在20 dpa左右。这项研究是首次报道使用UATR-FTIR和TGA阐明棉纤维发育过程中的结构变化。 （C）2007 Wiley期刊公司

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