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ID 16588
Eprint ID
16588
FullText URL
Thumnail 93_543.pdf 245 KB
Title Alternative
Mercury uptake by Mushroom (Shiitake) and its extract
Author
Hirota, Noboru
Abstract
Mushroom (Shiitake) grown on wood (Kashi) was exposed to mercury vapor and the mercury uptake was measured. With lapse of time, mushroom (Shiitake) took up metallic mercury at the plait of the cap and this increased daily. After about ten days, it reached a level of 4.5 μg/g, at which it remained constant. Shiitake crude extract took up mercury. Catalase and peroxidase inhibitor Potassium cyanide (KCN), Sodium azide (NaN(3)) and specific catalase inhibitor 3-Amino-1,2,4 Triazole (AT) inhibited mercury uptake respectively. Crude Shiitake extract without hydrogen peroxide (H(2)O(2)) showed a 53% decrease with H(2)O(2), and with H(2)O(2) plus KCN a 47% (5mM KCN), a 60% (10mM KCN), a 65% (20mM KCN) decrease occurred with H(2)O(2), in regard to the ability to take up mercury from air saturated with mercury vapor. Shiitake crude extract with H(2)O(2) plus NaN(3) inhibited mercury uptake almost completely, and with L-Ascorbic acid (VC) plus AT a 72% (5mM AT), a 89% (10mM AT), a 90% (20mM AT) decrease occurred, and with H(2)O(2) plus VC plus AT a 77% (5mM AT), a 90% (10mM AT), a 90% (20mM AT) decrease occurred. 3-Amino-1,2,4 Triazole, a specific catalase inhibitor, inhibited catalase activity and mercury uptake. This showed that Shiitake crude extract takes up mercury from air saturated with mercury vapor by hydrogen peroxide and catalase.
Keywords
Mercury
Catalase
Mushroom
Shiitake
Hydrogen peroxide
Published Date
1981-06-30
Publication Title
岡山医学会雑誌
Publication Title Alternative
Journal of Okayama Medical Association
Volume
volume93
Issue
issue5-6
Publisher
岡山医学会
Publisher Alternative
Okayama Medical Association
Start Page
543
End Page
547
ISSN
0030-1558
NCID
AN00032489
Content Type
Journal Article
Official Url
https://www.jstage.jst.go.jp/article/joma1947/93/5-6/93_5-6_543/_article/-char/ja/
Related Url
http://www.okayama-u.ac.jp/user/oma/index.html
language
日本語
Copyright Holders
岡山医学会
File Version
publisher
Refereed
True
Eprints Journal Name
joma