Effect of residual monomer from polyacrylamide on head lettuce grown in peat substrate
| Autor: | Ewelina Mroczek, Piotr Konieczny, Agnieszka Waśkiewicz, Tomasz Kleiber |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Chlorophyll
Flocculation Food Safety Peat Health Toxicology and Mutagenesis Polyacrylamide Acrylic Resins Residual monomer Toxicology Soil chemistry.chemical_compound Botany Humans Soil Pollutants Food science Chromatography High Pressure Liquid Acrylamide Public Health Environmental and Occupational Health Substrate (chemistry) General Chemistry General Medicine Lettuce eye diseases Plant Leaves chemistry Whole food Food Science |
| Zdroj: | Food Additives & Contaminants: Part A. :1-7 |
| ISSN: | 1944-0057 1944-0049 |
| DOI: | 10.1080/19440049.2015.1096965 |
| Popis: | The paper investigates the migration of the acrylamide monomer (AMD) to lettuce chosen as a test plant growing in an organic medium (peat substrate). Polyacrylamide (PAM)-based flocculant added to the growing medium contained no more than 1000 mg kg(-1) of AMD. Plants were grown with varied doses of PAM preparation (0.5-3.0 mg dm(-3) of peat substrate) to compare the results with the control sample. The determination of AMD content, chlorophyll content, weight of the lettuce head, and also analysis of macro- and micro-elements in lyophilised test material was made under the same analytical conditions. The results showed that lettuce plants absorb AMD to the leaves from the peat substrate. The AMD uptake has a negative impact on the growth of lettuce. It reduces the average fresh weight of heads and destabilises the mineral composition of the plant. Therefore, concern related to the transfer risk of the residual AMD from sludge used for organic fertilisation of edible plants still remains a crucial question from a food and consumer safety point of view. To ensure consumer safety, the fate of the AMD following the application of PAM to cropland should be carefully monitored in the whole food chain. |
| Databáze: | OpenAIRE |
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