Identification Study on Cryptotympana pustulata Ecdysis Based on 3D Depth of Field Synthesis Technology
- VernacularTitle:基于3D景深合成技术的蝉蜕药材鉴别研究
- Author:
Lixiao GUO
1
;
Zijing XUE
1
;
Fangjie HOU
1
;
Baohui SUN
2
;
Yuguang ZHENG
1
;
Qian ZHENG
1
Author Information
1. School of Pharmacy，Hebei University of TCM，Shijiazhuang 050200，China
2. Shijiazhuang Yiling Pharmaceutical Co.，Ltd.，Shijiazhuang 050035，China
- Publication Type:Journal Article
- Keywords:
3D depth of field synthesis technology;
Cryptotympana pustulata ecdysis;
Adulterants;
Rapid field identification
- From:
China Pharmacy
2020;31(4):447-451
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE：To establish the rapid field identification method of Cryptotympana pustulata ecdysis. METHODS ： 3D depth of field synthesis technology was used to identify 50 batches of C. pustulata ecdysis and its adulterants from the length of beak ，size and protrusion degree of upper labial base ，the protrusion degree of the lower labial base ecdysis and the color of its upper transverse groove ，the number and shape of main and lateral spines on the foot ，significance of abdominal valves ，the number of webs ，the number and shape of side plates ，the number of tergum rings ，terminaliae，etc. RESULTS ：Among 50 batches of samples ，S1-S5，S26-S30，S36-S50 were C. pustulata ecdysis；S21-S25 was adulterants of C. pustulata ecdysis after weight gain ；S31-S35 was adulterants of C. pustulata ecdysis after extraction ；S6-S20 were ecdysis from Tibicen flammatus ，C. flammatta，Lyristes pekinensis ，all of which were adulterants. The main distinguishing feature of C. pustulata ecdysis and its adulterants was that abdomen and ventral surface of C. pustulata ecdysis were triangular ，and the abdomen and ventral surface of other species was nearly parallel ；the valve of C. flammatta ecdysis was obvious ，but those of other varieties were not obvious ；the lateral appearance of terminaliae of C. flammatta ecdysis was sharper than those of other species ；there was an acute angle between the front foot accessory thorns and the end thorns of the T. flammatus ecdysis，and an obtuse angle between the front foot accessory thorns and the end thorns of the L. pekinensis ecdysis. CONCLUSIONS ：The method is simple ，reliable and suitable for rapid field identification of C. pustulata ecdysis and its adulterants.
