Safety Assessment Of Pesticide Residues In Tea Soup

In the paper, the influence of water temperature,infusing time,influsing times andpesticides residue on the infused pesticide ratio is studied by orthogonal design guided.The maximum extracting rates are concluded, counting safety factor and evaluationsecurity of having tea. The main results are summarized as following:1. Influence factor for the dissolution ratio of Fenvalerate The sequence of effecting the dissolution ratio of Esfenvalerate is influsing times>influsing time span>the pesticide concentration> the water temperature. The infusingtimes are the primary factor to effecting the dissolution ratio, and the pesticideconcentration is the subordinate factor. In the condition of 80℃ water, inflused for 5min,the 0.05mg/kg pesticide spiked and the twice inflused, the dissolution ratio ofEsfenvalerate comes to a head, being 3.27%. The sequence of effecting the dissolution ratio of Rfenvalerate is the pesticideconcentration>the water temperature >influsing time span>influsing times. Thepesticide concentration infusing times is the primary factor to effecting the dissolution ratio,and the influsing times is the subordinate factor. In the condition of 100℃ water ,influsedfor 20min, the 0.05mg/kg pesticide spiked and the three inflused, the dissolution ratio ofFenvalerate comes to ahead, being 5.27%. In the outcomes of Variance analysis about of Esfenvalerate, infusing time, influsingtimes and the pesticide concentration are all the significant factors, and reach to verysignificant. Infusing time, water temperature and the pesticide concentration are all thesignificant factors to Fenvalerate, and reach to very significant.2. Influence factor for the dissolution ratio of Fenpropathrin The sequence of effecting the dissolution ratio of Fenpropathrin is the pesticideconcentration > influsing times > the water temperature > influsing time span. Thepesticide concentration is the primary factor to effecting the dissolution ratio, and theinflusing time span. is the subordinate factor. In the condition of 100℃ water ,inflused for20min, the 0.02mg/kg pesticide spiked and the three inflused, the dissolution ratio ofFenpropathrin comes to a head, being 8.86% In the outcomes of Variance analysis about of Fenpropathrin, the water temperature,influsing times and the pesticide concentration are all the significant factors, and reach tovery significant.3. Influence factor for the dissolution ratio of MalathionThe sequence of effecting the dissolution ratio of Malathion is the pesticideconcentration > influsing times > influsing time span > the water temperature. Thepesticide concentration is the primary factor to effecting the dissolution ratio, and the thewater temperature is the subordinate factor. In the condition of 100℃ water ,inflused for5min, the 0.5mg/kg pesticide spiked and the three inflused, the dissolution ratio ofMalathion comes to ahead, being 96.91% In the outcomes of Variance analysis about of Malathion, the influsing time span,influsing times and the pesticide concentration are all the significant factors, and reach tovery significant.4. Influence factor for the dissolution ratio of Dimethoate The sequence of effecting the dissolution ratio of Dimethoate is influsing times>thepesticide concentration>influsing time span>the water temperature. The influsing timesis the primary factor to effecting the dissolution ratio, and the the water temperature is thesubordinate factor. In the condition of 80℃ water ,inflused for10min, the 0.05mg/kgpesticide spiked and the twice inflused, the dissolution ratio of Dimethoate comes to ahead,being 81.21% In the outcomes of Variance analysis about of Dimethoate, the influsing time span,influsing times and the pesticide concentration are all the significant factors, and reach tovery significant.5. Influence factor for the dissolution ratio of Triazophos The sequence of effecting the dissolution ratio of Triazophos is the pesticideconcentration > influsing time span > influsing times > the water temperature. Thepesticide concentration is the primary factor to effectin...