Details

Autor(en) / Beteiligte

• Shi, Qiumei
• Shao, Xinhua
• Wang, Xiumin
• Meng, Xia
• Hou, Xiaoqiao
• Yang, Baoxin
• Guo, Leiyu
• Gao, Jinglong

Titel

Particle Sizes and Antibacterial Activity of Radix Astragalus and Radix Isatidis Ultrafine Powders

Ist Teil von

• Agricultural biotechnology (Pawtucket, R.I.), 2016-08, Vol.5 (4), p.42-45

Ort / Verlag

Cranston: Wu Chu (USA-China) Science and Culture Media Corporation

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Using 9200 laser particle size analyzer and KYKY-2800 scanning electron microscope, particle sizes and cellular morphology of Radix Astragalus and Radix Isatidis ultrafine powders were observed. According to the results, the particle size of 89. 1 % of Radix Astragalus ultrafine powders ranged from 1.729 [xm to 44.938 ｜xm, Z ）50 =4.368 ｜xm; the particle size of 93.411% of Radix Isatidis ultrafine powders ranged from 1.510 [xm to 44.938 ｜xm, Z ）50 = 8 .7 2 6 [xm. Radix As-tragalus and Radix Isatidis ultrafine powders were pulverized completely without intact cellular morphology. The antibacterial activity of Radix Astragalus and Radix Isatidis ultrafine powders against chicken-derived E. coli （078） was investigated. The results indicated that Radix Astragalus and Radix Isatidis ultrafine powders exhibited higher antibacterial activity against chicken-derived E. coli （078 ） compared with the corresponding coarse powders. This study laid a solid foundation for the development and application of Chinese medicine ultrafine powder preparations.