Amino acid, fatty acid, and mineral compositions of fruit, stem, leaf and root of Rubus amabilis from the Qinghai-Tibetan Plateau
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- 作者：Rezeng Caidan ; Limao Cairang ; Bin Liu ; Yourui Suo
- 关键词：EFAAs ; essential free amino acids ; ETAAs ; essential total amino acids ; SFAs ; saturated fatty acids ; UFAs ; unsaturated fatty acids ; DBCEC ; 2-[2-(dibenzocarbazole)-ethoxy] ethyl chloroformate ; BAETS ; 2-(12-oxobenzo[b]acridin-5(12H)-yl) ethyl-4-toluene-sulfonate ; FFAs ; free fatty acids ; TFAs ; total fatty acids ; ICP-MS ; inductively coupled-plasma mass spectrometry ; GABA ; gamma-aminobutyric acid
- 刊名：Journal of Food Composition and Analysis
- 出版年：February, 2014
- 年：2014
- 卷：33
- 期：1
- 页码：26-31
- 全文大小：487 K
文摘
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 5.7 g, 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 9.3 g ETAAs/100 g. 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.