Mitigating the impact of organochlorine and pyrethroid residues in fresh and chemically washed spinach

• Autor(a) principal: HUSSNAIN,Ali
• Data de Publicação: 2021
• Outros Autores: AMIR,Rai Muhammad, Khan,Muhammad Azam, AHMAD,Asif, ALI,Shinawar Waseem, NADEEM,Muhammad, AMEER,Kashif, KHAN,Muhammad Asif, MAHMOOD,Shahid, Hayat,Imran
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Food Science and Technology (Campinas)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612021000100059
• topic: spinach; endosulfan; cypermethrin; deltamethrin; gas chromatography; washing treatments

Abstract Spinach is highly contaminated with different pesticide residues. This study was designed to evaluate organochlorine and pyrethroid pesticide residues present in various washing treatments (T0-T13) of fresh and chemically washed spinach with respect to maximum residues limits. Efficiency of washing solutions (citric acid, acetic acid, garlic extract and ginger extract) of different concentrations (w/v %) along with tap water in spinach was investigated for residues dissolution. Results showed that the highest reductions in endosulfan, deltamethrin and cypermethrin residues were 0.008 ± 0.008 mg.kg-1 (53%), 0.023 ± 0.024 mg.kg-1 (76%) and 0.017 ± 0.014 mgkg-1 (83%) in treatment of T5 (10% acetic acid) followed by 0.035 ± 0.029 mg.kg-1 (50%), 0.051 ± 0.029 mg.kg-1 (73%) and 0.037 ± 0.048 mg kg-1 (81%) in treatment T11 (10% ginger extract) while the lowest reductions in residues were 0.304 ± 0.004 mg.kg-1 (23%), 0.432 ± 0.030 mg.kg-1 (35%) and 0.468 ± 0.016 mg kg-1 (38%) in treatment T2 (5% citric acid), respectively. In conclusion, 10% acetic acid, ginger extract and mixture of acetic and citric acids can effectively minimize pesticide residues in treated spinach.