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首页> 外文会议>UKM FST Postgraduate Colloquium >Cellulose Nanocrystal from Pomelo (C. Grandis Osbeck) Albedo: Chemical, Morphology and Crystallinity Evaluation
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Cellulose Nanocrystal from Pomelo (C. Grandis Osbeck) Albedo: Chemical, Morphology and Crystallinity Evaluation

机译：来自Pomelo（C. Grandis Osbeck）Albedo：化学，形态学和结晶度评价的纤维素纳米晶

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摘要

Citrus peel is one of the under-utilized waste materials that have potential in producing a valuable fibre, which are cellulose and cellulose nanocrystal. Cellulose was first isolated from pomelo (C. Grandis Osbeck) albedo by combination of alkali treatment and bleaching process, followed by acid hydrolysis (65% H_2SO_4, 45 oC, 45min) to produce cellulose nanocrystal. The crystalline, structural, morphological and chemical properties of both materials were studied. Result reveals the crystallinity index obtained from X-ray diffraction for cellulose nanocrystal was found higher than extracted cellulose with the value of 60.27% and 57.47%, respectively. Fourier transform infrared showed that the chemical treatments removed most of the hemicellulose and lignin from the pomelo albedo fibre. This has been confirmed further by SEM and TEM for their morphological studies. These results showed that cellulose and cellulose nanocrystal were successfully obtained from pomelo albedo and might be potentially used in producing functional fibres for food application.
机译：柑橘剥离是利用含有有价值的纤维的含量不足的废料之一，该纤维是纤维素和纤维素纳米晶体。通过组合碱处理和漂白过程，首先从柚（Grandis Osbeck）Albedo中分离纤维素，然后用酸水解（65％H_2SO_4,45，45mIn）产生纤维素纳米晶体的纤维素。研究了两种材料的结晶，结构，形态学和化学性质。结果揭示了从纤维素纳米晶体的X射线衍射获得的结晶度指数，发现纤维素分别高出纤维素，分别为60.27％和57.47％。傅里叶变换红外表明，化学处理从柚子玻璃纤维中除去了大部分半纤维素和木质素。这已经通过SEM和TEM进一步确认了它们的形态学研究。这些结果表明，纤维素和纤维素纳米晶体从Pomelo Albedo中成功获得，并且可能潜在地用于生产用于食品的功能纤维。

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