Influence of harvesting method and washing on the presence of pesticide residues in olives and olive oil.
Influence of harvesting method and washing on the presence of pesticide residues in olives and olive oil.
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DOI：
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发表时间：
2006
影响因子：
6.1
通讯作者：
María Guardia Rubio;A. Ruiz Medina;A. Molina Díaz;M. J. Ayora Cañada
中科院分区：
文献类型：
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作者：
María Guardia Rubio;A. Ruiz Medina;A. Molina Díaz;M. J. Ayora Cañada
研究了橄榄油生产的初始步骤（收获和清洗）对橄榄和橄榄油中农药残留的影响。采用气相色谱-质谱/质谱法进行的分析显示，硫丹硫酸盐和两种除草剂（敌草隆和特丁津）是橄榄和橄榄油中最常见的残留物。收获方法对橄榄中发现的除草剂浓度有决定性影响。因此，16%和48%的橄榄样品从树上掉下来后，在地上收获的浓度高于敌草隆和特丁津的最大残留限量（MRL），分别。在直接从树上收获的橄榄中，没有发现敌草隆的浓度高于最大残留限量，只有10%的样本中发现了特丁津。在橄榄米尔斯中常规进行的清洗步骤有效地去除了地面收获的橄榄中存在的除草剂的表面污染。然而，即使在清洗后，从橄榄粉中获得的橄榄油显示出的除草剂残留浓度高于从树橄榄中获得的浓度。
The influence of the preliminary steps in olive oil production (harvesting and washing) on pesticide residues in olives and olive oil has been investigated. Analyses were performed by GC-MS/MS and revealed that endosulfan sulfate and two herbicides (diuron and terbuthylazine) were the most frequently found residues in olives and olive oil. The harvesting method has a decisive influence on herbicide concentrations found in olives. Thus, 16 and 48% of the olive samples harvested on the ground after falling from the tree presented concentrations higher than the maximum residue limit (MRL) for diuron and terbuthylazine, respectively. In olives harvested directly from the tree, diuron was not found at concentrations higher than MRL and terbuthylazine was found in only 10% of the samples. The washing step performed routinely in olive mills was effective in removing the superficial contamination by herbicides present in olives harvested on the ground. Nevertheless, even after washing, the olive oil obtained from ground olives showed herbicide residue concentrations higher than those obtained from tree olives.