Study on the Nutrition Quality Change in Different Growth Stages of Ganoderma lucidum

Purpose To reveal the nutrition quality change in different growth stages of Ganoderma lucidum and provide data support for the harvest and consumption of G. lucidum.

Method The atomic fluorescence spectrometer, amino acid analyzer, atomic absorption spectrometer, ultraviolet and visible spectrophotometer were used to analyze the content of amino acids, crude fibers, Ganoderma polysaccharides, total triterpene and heavy metals in the different growth stages of G. lucidum.

Result The content of Ganoderma polysaccharides was 0.46% to 1.16%, the bud stage was the highest. The content of total triterpene was 1.32%-2.22%, the mature stage was the highest. The content of crude fibers was 48.60%-52.90%, the differentiation stage was the highest. The content of amino acids was 15.82%-21.18%, the bud stage was the highest, and the highest content of histidine highest in all amino acids was 5.65%-6.48%. The contents of heavy metals in the umbrella stage, mature stage and spore stage were in compliance with national standard.

Conclusion The G. lucidum fruit body obtained in the bud stage was rich in nutrition and should be used scientifically and reasonably. The mature stage was the best harvesting time and the edible quality was the best.