Background and objective: The high sucrose yield of transgenic sugarcane has been developed through the overexpression of gene for sucrose-phosphate synthase. Modification of the genome may result in alteration of biochemical profiles. This study was conducted to compare and evaluate the nutritional and mineral compositions between the transgenic and non-transgenic (NT) sugarcane counterpart.
Materials and methods: Four of transgenic lines with overexpressing SoSPS 1 gene and NT sugarcane were grown in greenhouse for 11 months. The nutritional and mineral compositions from leaves and stems were analyzed at the harvest.
Results: Results revealed no significant differences in moisture, carbohydrates, crude fat and ash content between the transgenic lines and NT sugarcane. Protein and nitrogen contents were found to be significantly greater in steam of transgenic lines SP1 and SP3, including potassium content in both of the leaves and stems of transgenic lines. Although, the nutritional and mineral compositions were varied but their contents still within the range of Organization for Economic Co-operation and Development (OECD) reference values.
Conclusion: The results indicated that the nutritional and mineral compositions are substantially equivalent between transgenic and NT sugarcane.
Keywords: Transgenic sugarcane; nutritional and mineral; substantial equivalence; sucrose phosphate synthase.