EFFECT OF RINSING SOLUTIONS FOR REMOVING MANCOZEB RESIDUES IN TABLE TOMATOES EFEITO DE SOLUÇÕES DE ENXÁGUE NA REMOÇÃO DE RESÍDUOS DE MANCOZEB EM TOMATES DE MESA

<p class="western" style="margin-bottom: 0cm; line-height: 200%" align="justify"><!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --> <p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%;...

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Bibliographic Details
Main Authors: Míriam Fontes Araujo Silveira, Eduardo Seiti Gomide Mizubuti, Robson Maia Geraldine, Nilda de Fátima Ferreira Soares, Nathália Ramos Melo, Maria Célia Lopes Torres, Márcia Regina Ribeiro Alves
Format: Article
Language:English
Published: Universidade Federal de Goiás 2009-12-01
Series:Pesquisa Agropecuária Tropical
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Online Access:http://www.revistas.ufg.br/index.php/pat/article/view/4593
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Summary:&lt;p class="western" style="margin-bottom: 0cm; line-height: 200%" align="justify"&gt;&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;Fungicides are the pesticides most widely used for tomato cultivation, mainly dithiocarbamates. The objective of this research was to study the efficiency of dithiocarbamate mancozeb removal from table tomatoes, through rinsing processes. Analyses of tomato acidity, brix, water activity, pH, and manganese content were carried out. After rinsing tomatoes with drinking water and solutions of vinegar (made from alcohol), sodium bicarbonate, and dihidrated sodium dichloroisocyanurate, mancozeb levels were assessed in skin and whole fruit, by quantifying the manganese content present in the samples. It was observed that the rinsing processes reduced significantly the amount of residues in the tomatoes. The reduction of mancozeb was higher in the skin, where it can be found in its highest concentration. Treatments using drinking water and sodium bicarbonate solution removed over 61% of the residues present in tomatoes skin.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;KEY-WORDS: Fungicides; dithiocarbamates; &lt;em&gt;Lycopersicum esculentum &lt;/em&gt;Mill.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;&lt;/p&gt;<br>&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: x-small;"&gt;&lt;em&gt;&lt;span style="font-size: small;"&gt;Dentre os agrotóxicos mais utilizados na cultura do tomate estão os fungicidas e, dentre estes, os mais aplicados na cultura &lt;/span&gt;&lt;/em&gt;&lt;span style="font-size: small;"&gt;são os ditiocarbamatos&lt;/span&gt;&lt;span style="font-size: small;"&gt;&lt;em&gt;. &lt;/em&gt;&lt;/span&gt;&lt;span style="font-size: small;"&gt;O&lt;/span&gt;&lt;span style="font-size: small;"&gt;&lt;em&gt; &lt;/em&gt;&lt;/span&gt;&lt;span style="font-size: small;"&gt;objetivo deste trabalho foi avaliar a eficiência dos processos de enxágue de tomates de mesa, por imersão, com água potável e soluções de vinagre de álcool, bicarbonato de sódio e dicloroisocianurato de sódio dihidratado, utilizados na remoção do fungicida mancozeb. Foram realizadas análises de acidez, brix, atividade de água (a&lt;/span&gt;&lt;sub&gt;&lt;span style="font-size: small;"&gt;w&lt;/span&gt;&lt;/sub&gt;&lt;span style="font-size: small;"&gt;), pH e teor de manganês. Foi avaliado o teor do fungicida na película e no fruto inteiro, pela quantificação do teor de manganês presente nas amostras. Observou-se que o processo de enxágue do fruto reduz, significativamente, a quantidade de resíduos nos tomates. A redução de mancozeb foi maior na película, onde está presente em maior concentração, e os enxágues com água potável e solução com bicarbonato de sódio removeram mais de 61% dos resíduos presentes na película dos tomates.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; font-weight: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="JUSTIFY"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;PALAVRAS-CHAVE: Agrotóxico; ditiocarbamatos; &lt;em&gt;Lycopersicum esculentum &lt;/em&gt;Mill.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
ISSN:1983-4063