Amino Acids in Flowers, Stems and Fruits of Pitaya Grown on Saline Habitats
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摘要: 测定盐碱环境下,火龙果果肉、果皮、二年生茎、单年生茎、花瓣和花丝的氨基酸。结果表明盐碱环境下火龙果6个不同部位均含有所测定的17种氨基酸,氨基酸种类齐全,果肉、果皮、二年生茎、单年生茎、花瓣和花丝的总氨基酸含量分别为973.85、500.46、552.32、389.57、736.47和604.64 mg·hg-1·FW。味觉氨基酸和药用氨基酸也较为丰富,味觉氨基酸在果肉、果皮、二年生茎、单年生茎、花瓣和花丝中分别为58.02%、62.45%、58.46%、58.18%、61.79%和60.66%。药用氨基酸在果肉、果皮、二年生茎、单年生茎、花瓣和花丝中分别为65.58%、64.05%、62.63%、61.39%、62.08%和61.73%。最后探讨了盐碱环境对火龙果果实氨基酸的影响,以及火龙果花朵和茎的开发利用。Abstract: Contents of amino acids (AA) in the flowers, stems and fruits of pitayagrown on saline habitats were analyzed. The results indicated that the fruit flesh, pericarps, biennial stems, annual branches, petals and filaments all contained the 17 AAs detected. The total AA content (fresh weight) in fruit flesh was 973.85 mg·hg-1, 500.46 mg·hg-1 in pericarp, 552.32 mg·hg-1 in biennial stem, 389.57 mg·hg-1 in annual branch, 736.47 mg·hg-1 in petal, and 604.64 mg·hg-1 in filament. The flavoring AAs and medicinal AAs were abundant. The flavoring AAs in the fruit flesh, pericarps, biennial stems, annual branches, petals, and filaments were 58.02%, 62.45%, 58.46%, 58.18%, 61.79%, and 60.66%, respectively; and, the medicinal AAs were 65.58%, 64.05%, 62.63%, 61.39%, 62.08%, and 61.73%, respectively. According to the analytical results, development and utilization of pitaya flowers and stems were suggested. The effect of saline habitat on the AA contents in parts of the plants grown on it was discussed.
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Key words:
- Pitaya /
- saline habitat /
- amino acids
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表 1 盐碱环境火龙果花、茎和果实不同部位各种氨基酸的含量
Table 1. Amino acid contents in flowers, stems and fruits of pitaya grown on saline habitats
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