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| Safety evaluation of heavy metals and pesticide residues and nutrient analysis of a new mutant strain of Pleurotus geesteranus |
| Received:April 25, 2017 |
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| KeyWord:Pleurotus geesteranus;amino acid;heavy metal;pesticide residues;safety evaluation |
| Author Name | Affiliation | E-mail | | LEI Jin-gui | Agricultural Digital Institute, Fujian Academy of Agriculture Sciences, Fuzhou 350003, China | | | LIU Peng-hu | College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China | | | JIANG Zhi-he | Soil and Fertilizer Institute, Fujian Academy of Agriculture Sciences, Fuzhou 350013, China | | | WENG Bo-qi | Soil and Fertilizer Institute, Fujian Academy of Agriculture Sciences, Fuzhou 350013, China | wengboqi@163.com |
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| Abstract: |
| The aim of this study was to evaluate the characteristics and application prospect of a mutant strain of Pleurotus geesteranus named "Fuxiu 5669". The contents of amino acids, crude protein, crude ash, heavy metals, and pesticide residues in fruiting bodies of Fuxiu 5669 and the original strain "Taixiu 57" were tested according to China Food Safety Standards. Compared with Taixiu 57, Fuxiu 5669 had significantly higher contents of crude protein, crude ash, and 16 amino acids(P<0.01). The contents of lead, arsenic, and cadmium were significantly lower in fruiting bodies of Fuxiu 5669 than in those of Taixiu 57(P<0.01). However, the lead content in fruiting bodies of both Fuxiu 5669 and Taixiu 57 exceeded the level specified in the China Food Safety Standards. The content of mercury in fruiting bodies of either Fuxiu 5669 or Taixiu 57 was lower than the China Food Safety Standards level. Fuxiu 5669 had a higher dose of mercury compared with Taixiu 57. Pesticide residues in fruiting bodies of both Fuxiu 5669 and Taixiu 57 met the requirement of the China Food Safety Standards. These results indicated that the food safety indices of Fuxiu 5669 were superior to Taixiu 57. As a result, Fuxiu 5669 may have better prospect in further applications. |
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