Study on Toxicity of 0.2% Celangulins EC on Birds;

Study on the Preparation of Micro-emulsion of 1% Celangulins;

Effects of 0.2% celangulins EC on non-target organisms in environment;

A New Extraction Process of Botanical Insecticide Celangulin;

Celangulin, a Novel Botanical Insecticide;

Effects of the mixture of celangulin Ⅳ and Ⅴ from Celastrus angulatus Max. on sodium channels in nerve cells of cotton bollworm (Helicoverpa armigera);

Synthesis and bioactivities of celangulin Ⅴ derivatives;

Studies on the relationship of cytochrome P450 and selective toxicity of Celangulin Ⅴ against insect;

Study on immunogenicity of Celangulin Ⅴ-BSA to rabbit;

In order to determine the content of angulatin A in angulatin products and control the quality of products,angulatin A was prepared with a series of steps,including extraction with 95 % ethanol,segregation by silica gel column,decolourization with active carbon,and separation with preparative high performance liquid chromatography.

Studies on the induction of celangulin Ⅴ to cytochrome P450 and glutathione S-transferase of armyworm,Mythimna separata;

Detection of storage proteins in different developmental stages of Mythimna separata and the effect of celangulin Ⅴ on their content;

Effects of celangulin Ⅴ on muscle cells of Mythimna separata;

An insecticidal compound 6β-propoxycelangulin V was synthesized from celangulin V and 1-propanol through anhydrous iodination and Williamson reactions.

Celangulin IV and celangulin V isolated from the root bark of the plant Celastnis angulatus are the major active ingredients of this botanical insecticide.

Important advance was made to Celastrus and ceangulin V after 20 years studies, but the target of Celangulin V was not verified and the metabolic dynamic of Celangulin V in organism was not touched because of the technique difficulty in testing and anal.