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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >Preparation of microcrystalline cellulose from residual Rose stems (Rosa spp.) by successive delignification with alkaline hydrogen peroxide
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Preparation of microcrystalline cellulose from residual Rose stems (Rosa spp.) by successive delignification with alkaline hydrogen peroxide

机译：通过碱性氢过氧化氢的连续脱氨基氢化合物从残留玫瑰茎（ROSA SPP）的微晶纤维素的制备

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摘要

Agricultural residues of Rose flowers (Rosa x hybrida L.) are abundant, cheap, and renewable. These lignocellulosic remains are composed of cellulose, hemicellulose, and lignin. They are an attractive feedstock to produce various value-added products, as microcrystalline cellulose (MCC). The objective of this study was to obtain MCC from residual Rose stems (RS) using a successive alkaline peroxide treatment. X-ray diffraction, Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM) were used to determine the degree of crystallinity, structure characteristics, thermal properties, and morphology, respectively, of MCC. The properties of RS-MCC were compared with those of commercial MCC. The degree of crystallinity of RS-MCC was 70.21%. The X-ray diffraction patterns reveal the presence of Type I cellulose. FTIR showed the absence of non-cellulosic components, mainly lignin, present in the amorphous regions of the RS fibers. Results are promising for taking advantage of agricultural residues as a source of MCC, which could be used as a reinforcing agent in polymeric matrices. (C) 2020 Elsevier B.V. All rights reserved.
机译：玫瑰花朵的农业残留物（Rosa X Hybrida L.）丰富，便宜，可再生。这些木质纤维素仍由纤维素，半纤维素和木质素组成。它们是一种有吸引力的原料，可以生产各种增值产品，作为微晶纤维素（MCC）。本研究的目的是使用连续碱性过氧化物处理从残留的玫瑰茎（RS）中获得MCC。 X射线衍射，傅里叶变换红外光谱（FTIR），热重分析（TGA）和扫描电子显微镜（SEM）用于确定MCC的结晶度，结构特性，热性能和形态学程度。将RS-MCC的特性与商业MCC的特性进行了比较。 RS-MCC的结晶度为70.21％。 X射线衍射图案显示I型纤维素的存在。 FTIR显示出在RS纤维的无定形区域中存在的非纤维素成分，主要是木质素。结果是有希望利用农业残留作为MCC的来源，其可用作聚合物基质中的增强剂。 （c）2020 Elsevier B.v.保留所有权利。

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