Mechanical grinding alters physicochemical, structural, and functional properties of tobacco (Nicotiana tabacum L.) leaf powders

文献类型： 外文期刊

第一作者： Zhang, Yue

作者： Zhang, Yue;Mahmood, Naveed;Liu, Yanhong;Li, Ruidong;Shang, Guanlan;Zhu, Hong

作者机构：

关键词： Tobacco leaf; Superfine grinding; Particle size; Physicochemical properties; Antioxidant capacity; Cell wall breakage

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.645； 五年影响因子：5.749 ）

ISSN： 0926-6690

年卷期： 2021 年 173 卷

页码：

收录情况： SCI

摘要： Utilizing tobacco industrial waste can increase added value without increasing the environmental burden. The physicochemical, structural, and functional properties of tobacco leaf powders produced by coarse and superfine grinding treatments with different particle size were investigated. The particle size was significantly reduced by superfine grinding to micron scale (10.3 mu m), and the specific surface area sharply increased. With decreasing particle size, the bulk density, tap density, angles of repose and slide increased, but water and oil holding capacities decreased, indicating the worse flowability and hydration property. The increasing lightness and yellowness but decreasing redness were observed after superfine grinding. Differential scanning calorimetry curves showed that superfine grinding insignificantly affected the conformation stability and denaturation degree of proteins. Fourier transform infrared spectroscopy proved unchanged main structure and decreased chain length of polysaccharide polymer. Morphology revealed that the shape of superfine ground sample was changed from an irregular polygon to spherical-like, and surface roughness was reduced. All cell walls were disrupted after superfine grinding, but the dissolution yields of nicotine and total phenolic, and antioxidant activities were not enhanced. The median particle size of 93.9 mu m was the most effective for the ingredient dissolution and antioxidant capacity. This study was expected to supply new insights in guiding the development of discarded tobacco in practice.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序