|Table of Contents|

Study on the Stability of Antibacterial Active Components by Aqueous Extract of Erminalia

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2020年05
Page:
104-108
Research Field:
Publishing date:

Info

Title:
Study on the Stability of Antibacterial Active Components by Aqueous Extract of Erminalia
Author(s):
HUANG Haiying; LI Xiaojuan; LI Zhengying
(Vocational and Technical College,Inner Mongolia Agricultural University,Baotou,Inner Mongolia 014109)
Keywords:
terminalia; tomato-late-blight; bacteriostatic; stability
PACS:
-
DOI:
10.11937/bfyy.20191768
Abstract:
In this experiment,tomato-late-blight was used as the test bacteria,the stability of the active components of water extract from terminalia was studied,in order to provide some help for the prevention and control of tomato diseases,the increase of yield and the theoretical support for the development of new plant pesticides.The results showed that,the water extract of terminalia showed good bacteriostatic activity,and its minimum bacteriostatic concentration was 3.9 mg·mL-1.The water extract of terminalia had larger diameter and better antibacterial activity under acidic conditions,the diameter of bacteriostatic zone of the aqueous extract and the bacteriostatic activity decreased obviously after alkali treatment.The aqueous extract showed good stability to temperature and ultraviolet irradiation;when the concentration of sucrose was 2%,the diameter of bacteriostatic zone was the largest and the bacteriostatic effect was the best.With the increase of sucrose concentration,the diameter of bacteriostatic zone decreased and the bacteriostatic activity decreased.When Ca2+,Mg2+,Fe3+ were added to the aqueous extract,the diameter of the antimicrobial ring increased and the antibacterial ability significantly improved.

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Last Update: 2020-04-29