Simple methods of removal of pesticide residues from cauliflower.

This study aimed to investigate the chemical composition of muscle tissues from seven species of fish, which were captured from the lower section of the Itapecuru river, comprising the municipalities of Santa Rita and Rosario and the coastal area of Golfao Maranhao during the period of June 2012 to May 2013. The species selected for the experiment were: Plagioscion squamosissimus, Geophagus surinamensis, Curimata sp., Prochilodus lacustris, Schizodon dissimilis, Ageneiosus ucayalensis and Hypostomus plecostomus, which showed significant abundance and high commercial value. Representative samples were collected without distinction of size and sex and only species with good organoleptic conditions were selected. Analysis of the muscle of each species was performed in triplicate to assess the moisture content, total fat, ash and energy value. The average results of proximate analysis revealed the following variations: moisture 73.7% to 79.2%, total lipids 0.2% to 6.8%, protein 18.6% to 23.0%, ash 0.8% to 1.8% and the energy value of 77 to 136 kcal / 100g. The species G. surinamensis showed a higher moisture content and ash and a lower energy value, indicating the highest mineral content between the studied species. The A. ucayalensis species had, on average, higher levels of total lipids and energy, while the P. lacustris species showed a higher percentage of proteins. The results confirm the importance of knowing the protein value of species that can serve different dietary purposes of local people.