Amino acid, fatty acid, and mineral compositions of fruit, stem, leaf and root of Rubus amabilis from the Qinghai-Tibetan Plateau
2014
Rezeng Caidan, | Limao Cairang, | Liu, Bin | Suo, Yourui
The amino acid, fatty acid, and mineral content of Rubus amabilis harvested from the Qinghai-Tibetan Plateau were analyzed. Results revealed that the total amino acids in the leaves, fruits, roots, and stems of R. amabilis were 17.1, 7.5, 6.5, and 5.7g, respectively. Further analysis of the amino acids showed that the protein contained nutritionally useful quantities of essential amino acids. The total essential amino acids in the leaves of R. amabilis were 9.3g ETAAs/100g. Total fatty acids varied in different parts of R. amabilis. Stearic acid, linolenic acid, linoleic acid, and palmitic acid in the leaf samples were 41.4%, 13.7%, 11.9%, and 6.7%, respectively. Lauric acid, oleic acid, docosahexoenoic acid, and eicosenoic acid were present only in small quantities. Potassium, magnesium, and calcium were the most abundant minerals in the leaf samples. Among the essential trace mineral elements, Fe exhibited the highest content in different parts of R. amabilis.
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