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首页> 外文期刊>Journal of natural fibers >Extraction and Characterization of Cellulose Microfibers from Agricultural Wastes of Onion and Garlic
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Extraction and Characterization of Cellulose Microfibers from Agricultural Wastes of Onion and Garlic

机译：洋葱和大蒜农业废料中纤维素微纤维的提取与表征

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摘要

As a new lingo-cellulosic natural fiber sources, agricultural processing wastes of onion and garlic, stalks and skins, were investigated by determining their chemical composition and characterization of their cellulose microfibers extracted by chlorite and alkaline extraction method. The extracted cellulose microfibers were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscope (SEM). The stalks and skins of garlic and onion were composed of cellulose (41-50%), hemicelluloses (16-26%), and lignin (26-39%), which indicates that the predominant polysaccharide in the stalks and skins of onion and garlic is cellulose. The cellulose microfibers extracted from the stalks and skins of onion and garlic were more heat stable than their neat fibers. The result showed that the skin and stalk of onion and garlic have a high potential for the utilization as a new source of biopolymer resources.
机译：作为洋葱和大蒜，茎和皮的农业加工废料，作为一种新型的纤维素纤维天然纤维来源，通过确定其化学成分并通过亚氯酸盐和碱法提取的纤维素微纤维进行了表征，对它们进行了研究。提取的纤维素微纤维通过傅立叶变换红外光谱（FTIR），热重分析（TGA）和扫描电子显微镜（SEM）进行表征。大蒜和洋葱的茎和皮由纤维素（41-50％），半纤维素（16-26％）和木质素（26-39％）组成，这表明洋葱和洋葱的茎和皮中主要多糖。大蒜是纤维素。从洋葱和大蒜的茎和皮中提取的纤维素微纤维比其纯净纤维更热稳定。结果表明，洋葱和大蒜的皮和茎具有作为生物高分子资源的新来源被利用的巨大潜力。

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