香菇对培养料中镉的富集作用研究

doi:10.7506/spkx1002-6630-201321038

食品科学 ›› 2013, Vol. 34 ›› Issue (21): 183-187.doi: 10.7506/spkx1002-6630-201321038

香菇对培养料中镉的富集作用研究

何旭孔1,2，白冰1,*，邢增涛1，赵晓燕1，邵毅1，赵明文2

1.上海市农业科学院农产品质量标准与检测技术研究所，上海 201403；2.南京农业大学生命科学学院，江苏南京 210095

收稿日期:2012-09-02 修回日期:2013-10-11 出版日期:2013-11-15 发布日期:2013-10-28
通讯作者: 白冰 E-mail:whitebing2@hotmail.com
基金资助:
“十一五”国家科技支撑计划项目(2009BADB7B06)

Accumulation of Cadmium in Lentinula edodes from Its Compost

HE Xu-kong1,2，BAI Bing1,*，XING Zeng-tao1，ZHAO Xiao-yan1，SHAO Yi1，ZHAO Ming-wen2

1. Institute for Agri-food Standards and Testing Technology, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China；
2. College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China

Received:2012-09-02 Revised:2013-10-11 Online:2013-11-15 Published:2013-10-28
Contact: BAI Bing1 E-mail:whitebing2@hotmail.com

摘要/Abstract

摘要：

目的：研究影响香菇中镉富集的潜在因素，为控制香菇中的镉含量提供相关依据。方法：通过在培养料中添加不同水平的外源镉，研究镉对香菇形态与生理的影响，并考察武香、208和808品种菌株香菇和香菇子实体不同组织部位对镉的富集特性。结果：培养料中镉水平在0.068～7.87mg/kg范围内增加时，香菇子实体中的镉、乙酸和柠檬酸含量逐渐增加；武香和208菌株香菇的生物学效率先增加，后降低，而808菌株香菇的生物学效率一直低于对照组。不同菌株香菇对镉的富集能力强弱随培养料中镉含量的变化而变化；香菇不同组织部位对镉的富集能力差异很大，菌褶对镉的富集倍数是菌盖的1.40～2.17倍，是菌柄的1.92～5.89倍。根据各菌株的镉富集规律得培养料中镉限量参考值分别为：武香菌株0.062mg/kg；208菌株0.040mg/kg；808菌株0.061mg/kg。结论：高含量镉能影响香菇子实体的形态和生理；菌株种类、培养料中镉含量、子实体组织部位均与香菇镉富集有关。

关键词: 香菇, 镉富集, 因素

Abstract:

Objective: To study the potential factors affecting cadmium (Cd) accumulation and to provide a basis for controlling
Cd content in Lentinula edodes. Methods: By adding exogenous Cd to at different levels, we studied the major source of Cd and
the impact of Cd on the morphology and physiology of Lentinula edodes, and examined Cd accumulation in different parts fruit
body of strains Wuxiang, 208 and 808. Results: With increasing Cd concentration between 0.068 mg/kg and 7.87 mg/kg in the
compost, Cd, acetic acid and citric acid contents indicated a gradual increase. Biological efficiency of strains Wuxiang and 208
exhibited an initial increase followed by a decrease, but strain 208 presented lower biological efficiency than the control group. The
accumulation capability of Cd in different strains and their different parts varied depending on Cd concentration. The accumulated
Cd content in gill was 1.40 to 2.17 times more than that in gap, and 1.92 to 5.89 times more than that in stipe. According to Cd
accumulation patterns in different strains, the limited Cd concentrations in the compost were 0.062, 0.040 mg/kg and
0.061 mg/kg for cultivating Lentinula edodes from Strains Wuxiang, 208 and 808, respectively. Conclusion: High concentrations
of Cd can affect the morphology and physiology of Lentinula edodes fruit body. Cd accumulation in Lentinula edodes is correlated
with the strain species, and Cd concentration in the compost and tissues.

Key words: Lentinula edodes, cadmium accumulation, factor

中图分类号:

S646

何旭孔1,2，白冰1,*，邢增涛1，赵晓燕1，邵毅1，赵明文2. 香菇对培养料中镉的富集作用研究[J]. 食品科学, 2013, 34(21): 183-187.

HE Xu-kong1,2，BAI Bing1,*，XING Zeng-tao1，ZHAO Xiao-yan1，SHAO Yi1，ZHAO Ming-wen2. Accumulation of Cadmium in Lentinula edodes from Its Compost[J]. FOOD SCIENCE, 2013, 34(21): 183-187.

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香菇对培养料中镉的富集作用研究

Accumulation of Cadmium in Lentinula edodes from Its Compost

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