The Research Of Degradation On Organophosphorus Pesticide Residues In Red Wine Mash Processed By Pulse Electric Field

Pesticide is a major agricultural production data to control insect pests, to ensure stable agricultural production, improve the quality of agricultural products, improve the living standards of farmers plays a very important role. However, the extensive use of highly toxic, high residue of pesticides and other chemicals, causing widespread exceed the standard phenomenon of pesticide residues and the deep processing of fruit and vegetable products. This topic early in the investigation foundation, found mainly in the direct residues in agricultural products of our country at the present stage the main pesticide (such as apples, pears and other fruits; cauliflower, cabbage and other vegetables) and deep processing of agricultural products (if in Wine juice, etc.). Residues of pesticides Wine in machining process control technology is still relatively backward, one is taken to increase the fermentation time to reduce pesticide residues; two is in the treatment Wine pre production process by washing to achieve reduction effect, through the survey statistics, the two main kinds of methods are greatly increased Wine production cycle, and the reduction effect the general. In this paper, the electric field treatment containing organic phosphorus pesticide red Wine mash by high voltage pulse, analysis the effect and mechanism of high voltage pulse treatment of pesticide on the red Wine mash dimethoate, malathion, chlorpyrifos, dichlorvos and other organic phosphorus reduction. To determine organophosphorus pesticide reasonable reduction of physical methods, physical methods to reduce pesticide residues and its degradation technology to improve the quality of China’s vegetable products, safeguard the people’s diet safety, have important theoretical and realistic significance to improve the international competitiveness of China’s vegetable products. The results are as follows:First, Lab made organic phosphorus red Wine mash Cabernet Sauvignon Red Wine mash Pesticide Dichlorvos, malathion, dimethoate, chlorpyrifos for oxygen reduction rate analysis. Respectively, using single factor design method to different organic phosphorus pesticide red Wine mash sample, design and processing of the test response surface design method, and the results were analyzed by statistical analysis. Study of electric pulse three parameters of electric field intensity, action time, pulse number on the organic phosphorus pesticides in red Wine mash the reduction effect, the results show that:the following prices of three parameters of the pesticide malathion and chlorpyrifos:for the effect of three parameters, according to the times:the electric field strength> action time>number of pulse, for DDVP and Omethoate, three parameters effect on the reduction rate is as follows:the electric field strength> number of pulse> action time.Second* To cabernet sauvignon red grape wine mash as appropriate, rate of the degradation of organophosphorus pesticides in three parameters as incentives, high voltage pulse test and regression analysis are made on regression equation is obtained, four kinds of organophosphorus pesticide (followed by dichlorvos, dimethoate marla sulfur phosphorus, oxygen, chlorpyrifos) of the regression equation were significantly, its first close respectively:0.8582,0.7562,0.9273,0.7562=Third, The effect on the degradation of organophosphorus pesticide made a quantitative analysis. Cabernet sauvignon red wine mash in four kinds of organophosphorus pesticide (followed by dimethoate and dichlorvos, marla sulfur phosphorus, oxygen chlorpyrifos) maximum degradation rate can reach 62.16%, 62.42%,67.73%,75.8%, when the degradation rate is respectively:the yes three biggest dichlorvos (XI= 2866.58 V/cm, X2= 93.30 us, X3= 62.22). Maria sulfur phosphorus (X1= 2889.44 V/cm, X2= 75.29 us, X3= 60.71). Oxygen dimethoate (X1= 2669.31 V/cm, X2= 75.56 us, X3= 65.02). Chlorpyrifos (XI= 2814.63 V/cm, X2= 104.63 us, X3= 80.15)。Four, Design based on Au electrode of acetylcholinesterase sensor, and by using electrochemical workstation to analyze the performance of the electrode, and the quantitative tests before and after the degradation of organophosphorus pesticide concentration, and the actual sample test, can achieve the desired effect. Get mara sulphur phosphorous pesticide concentration on the relationship between the current:Y= 4.9941* X+6,1349, md me correiation coefficient R2= 0.9931.