Mechanism of "herb soaking with exact amount of water" during moistening process of ginseng based on needle pressure sensor

• Published in: Zhongguo zhongyao zazhi Vol. 45; no. 2; p. 267
• Main Authors: Lian, Chuan-Yun, Xu, Bing, Zhao, Ya-Nan, Dai, Sheng-Yun, Hou, Jin-Cai, Zhang, Yan-Ling, Qiao, Yan-Jiang
• Format: Journal Article
• Language: Chinese
• Published: China 01.01.2020
• Subjects: pressure sensor; first order dynamics; ginseng; moistening process; herb soaking with exact amount of water
• ISSN: 1001-5302
• DOI: 10.19540/j.cnki.cjcmm.20191219.305

In this study, the texture analyzer acupuncture pressure sensor was used to objectively characterize the "herb soaking with exact amount of water" for moistening process of ginseng. The single factor rotation experiment was used to investigate the effects of puncture speed, puncture depth and puncture site on puncture force and work. According to ginseng processing method in Chinese Pharmacopoeia, ginseng medicinal materials with diameters of about 1 cm and 2 cm were selected, and puncture experiments were carried out at the set measurement time to determine the hardness, work and water absorption of the ginseng moistening process. The endpoint threshold for the ginseng softening process was determined and verified. To reflect the actual internal conditions of the ginseng softening process, the puncture depth was preferably 70%, and the puncture speed was 30 mm·min~(-1). In the ginseng moistening process, the softening hardness and the puncture work were in accordance with the first-order kinetic equation y=a