灵芝子实体富锗效应研究初报
Priliminary Study on Germanium Enrichment in Fruitbodies of Ganoderma lucidum
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摘要: 本研究以GeO2为锗源,通过仿野生栽培得到富锗灵芝于实体,生物学效率为8.63%~9.68%.经石墨炉原子吸收法测定,当年生子实体含锗量为0.22~8.25μg/g,对锗元素的吸收利用率为0.02%~0.19%;而次年生子实体含锗量为6.60~138μg/g,吸收利用率达1.68%~6.73%.氨基酸分析结果表明,富锗灵芝全氨基酸含量为7.18~8.32mg/100mg,比对照的普通灵芝高19.0%~37.8%;富锗灵芝的必需氨基酸含量较丰富,E/T=0.577~0.625;其中,蛋氨酸(Met)含量提高一个数量级,高达2.09~2.64mg/100mg.据此推测,灵芝于实体在代谢水平上产生与富锗相关的生理变化,显着影响到氨基酸尤其是蛋氨酸的合成代谢。Abstract: Germanium dioxide was applied as additive to obtain Ge-enriched fruitbodies of Ganoderma lucidum by Imitate -wild-culture method and its biological efficiency were 8.63%~9.68%.Gecontents in the fruitbodies harvested in same year were 0.22~8.25 μg/g analysed by FAAS, and Geuptaked rates were 0.02 % ~0.16%;the fruitbodies harvested in the second year,Gecontentswere 6.60~138μg/g,the rates were 1.68%~6.73%.Amino acid analysis showed that, the content of total amino acids in Geenricned iruitbodies were 7.18~8.32 mg/100 mg(dry matterr)which were 19.0%~37.8%higher than normal fruitbcxlies;the ratio of essential aminoacid of Geenriched fruitbodies were higher, E/T=0.577~0.625;among that,methionine (Met)contentswere 2.09 mg~2.64 mg/100 mg (dry matter),raised about one quantitative degree.Accordingly,we speculated that there was a certain kind of physiological change related to the metabolism levelof Geenrichment in the fruitbodies,especially a notable effect on synthetic metabolism ofaminoacids.
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Key words:
- Lucid ganoderma (Ganoderma lucidum) /
- Fruitbody /
- Ge-enrichment /
- Rate of Ge-up-taking /
- Amino acid
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[1] 陈体强,何修金等.1993.赤灵芝段木栽培新技术研究.中国中药杂占,18(5): 272~274 [2] 陆龙根.钱亚珍等.1993.富锗灵芝栽培试验.中国食用菌,12(2): 20~21
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