Analyses of Nutritional Ingredients in Edible Flowers of Wild Allium polyrhizum Turcz. ex Regel from Inner Mongolia
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Abstract:
The main nutritional ingredients in the edible flowers of wild Allium polyrhizum Turcz. ex Regel from three regions in Inner Mongolia were studied using chromatography and other general methods. This study ascertains nutritional and medicinal benefits of Allium polyrhizum Turcz. ex Regel, and strengthens the theoretical foundation for its utilization. The results showed that there were obvious differences in the nutritional quality of flowers from the different regions, which were significantly affected by the climate. Of the three regions, the best integrated nutritional and medicinal quality of flowers was found in those from Ordos city. The nutritional content of the flowers were found to be higher, especially the amounts of total flavonoids, vitamins, and fatty acids, than that of the cultivation chives. They contained at least 18 kinds of amino acids, of which eight were essential amino acids, and a variety were medicinal amino acids. The ratio of essential amino acids to total amino acids was found to be 36.2%, and the first restriction amino acids were methionine and cysteine. The amounts of glutamate and aspartate were the highest, accounting for 23.40 % and 13.59 %, respectively, of the total amino acids. The average amount of unsaturated fatty acid was 79.80%, and the human essential fatty acid content was 36.49%. Besides, the linoleic acid content was 27.51%, and the ratio of polyunsaturated fatty acid and saturated fatty acid was 3.95.
