...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Nutrition & Food Sciences >Preparation and Characterization of Cellulose and Nanocellulose From Pomelo (Citrus grandis) Albedo
【24h】

Preparation and Characterization of Cellulose and Nanocellulose From Pomelo (Citrus grandis) Albedo

机译：柚子反照率纤维素和纳米纤维素的制备与表征

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pomelo (Citrus grandis) peel is one of the under-utilized waste materials that have potential in the production of functional ingredients, due to its high fiber content. This study was conducted to isolate and characterize cellulose and nanocellulose from pomelo albedo. Cellulose was prepared via alkali treatment followed by bleaching process, while nanocellulose was produced via hydrolysis using sulfuric acid. The physicochemical and structural properties of the produced materials were characterized using proximate analysis, Fourier transform infrared spectroscopy (FTIR), and cellulose crystallinity index (CrI) by X-Ray Diffractometer (XRD) and water holding capacity (WHC). Proximate analysis showed that pomelo albedo contains 72.62% carbohydrate, 16.13% moisture, 6.27% protein, 3.41% ash and 1.56% fat. FTIR spectra for cellulose and nanocellulose confirms absorption bands characteristic of pure celluloses at 3334, 2902, 1630, 1427, 1030 and 896 cm-1. The crystallinity index (CrI) of the isolated nanocellulose was found considerably higher than that of cellulose with the value of 60.27% and 57.47%, respectively. Water holding capacity (WHC) of nanocellulose was also higher (p<0.05) than cellulose with the value of 12.75 g water/g and 8.9 g water/g respectively. We conclude that pomelo albedo can be a principal source of natural cellulose and nanocellulose materials which can be further manipulated for food ingredient applications.
机译：柚皮（Citrus grandis）果皮是一种利用率不高的废料之一，由于其纤维含量高，因此具有生产功能性成分的潜力。进行这项研究以分离和表征柚子反照率中的纤维素和纳米纤维素。纤维素是通过碱处理和漂白工艺制备的，而纳米纤维素是通过硫酸水解制备的。使用近距离分析，傅立叶变换红外光谱（FTIR）以及X射线衍射仪（XRD）和保水量（WHC）对纤维素结晶度指数（CrI）进行表征，表征了所生产材料的理化和结构性质。最近的分析表明，柚子反照率含有72.62％的碳水化合物，16.13％的水分，6.27％的蛋白质，3.41％的灰分和1.56％的脂肪。纤维素和纳米纤维素的FTIR光谱证实了纯纤维素在3334、2902、1630、1427、1030和896 cm-1处的吸收带特征。发现分离的纳米纤维素的结晶度指数（CrI）显着高于纤维素的结晶度指数（CrI），分别为60.27％和57.47％。纳米纤维素的持水量（WHC）也比纤维素高（p <0.05），分别为12.75 g水/ g和8.9 g水/ g。我们得出的结论是，柚子反照率可以是天然纤维素和纳米纤维素材料的主要来源，可以对食品成分进行进一步处理。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号