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[Study on basic amino acid contents in Dendrobium officinale].
Ailian Zhang1, Tao Wei, Jinping' Si
1Research and Development Centre of Natural Medicines, Zhejiang Agricultural and Forestry University, Lin'an 311300, China. zhangailian@126.com
Dendrobium officinale is rich in essential amino acids and other basic amino acids. Breeding can enhance these amino acid levels, with content varying by germplasm and physiological age.
Area of Science:
- Biochemistry
- Plant Science
- Nutritional Science
Context:
- Dendrobium officinale is a valuable medicinal herb.
- Understanding its nutritional profile is crucial for quality evaluation and breeding.
- Amino acid content is a key indicator of nutritional value.
Purpose:
- To quantify 16 basic amino acids in Dendrobium officinale.
- To analyze variations in amino acid content based on germplasm and physiological age.
- To establish a scientific basis for Dendrobium officinale quality assessment and breeding programs.
Summary:
- Amino acid analysis revealed rich basic amino acid content in Dendrobium officinale.
- Significant variations in amino acid levels were observed across different germplasms and physiological ages (1-3 years).
- Essential amino acid content ranged from 0.28-2.96 mg/g, while other basic amino acids ranged from 0.53-4.20 mg/g.
Impact:
- Findings support breeding strategies to enhance essential and basic amino acid content in Dendrobium officinale.
- Physiological age significantly influences amino acid profiles, with three-year-old plants showing higher content.
- Specific correlations were identified between amino acids (Asp, Tyr, Pro) and mineral content (Magnesium, Copper).
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