STUDIES ON THE EARTHY-MUSTY ODORS IN NATURAL-WATER .4. MECHANISM OF EARTHY-MUSTY ODOR PRODUCTION OF ACTINOMYCETES

被引：25

作者：

AOYAMA, K

机构：

[1] Aichi Prefectural Institute of Public Health, Nagoya, 462, 7–6, Nagare Kita‐ku

来源：

JOURNAL OF APPLIED BACTERIOLOGY | 1990年 / 68卷 / 04期

关键词：

D O I：

10.1111/j.1365-2672.1990.tb02891.x

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Many reservoirs for water supply have been troubled with earthy‐musty odour compounds—2‐methylisoborneol (2‐MIB) and geosmin. Both of these compounds are terpenoid and related to the metabolite of l‐methionine. An experiment using [CD3]methionine and [14CH3]methionine showed that the C‐2 methyl group in 2‐MIB originate from l‐methionine. In the incubation experiment with 10–1000 mg/l of l‐methionine, 2‐MIB and geosmin appeared in the earlier stages, in greater amounts than in the control. The maximum production of 2‐MIB and geosmin increased considerably in the experiments with 10 and 100 mg/l of l‐methionine. The effective time for l‐methionine addition was after 1 d. Additions after 3 and 5 d were similar to the control. In the incubation experiment with 10–1000 mg/l of folic acid, 2‐MIB and geosmin increased only during the 1000 mg/l addition. There seems to be little doubt that l‐methionine takes part in the metabolism of 2‐MIB and geosmin. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：405 / 410

页数：6

共 11 条

[1]

AOYAMA K, 1985, JAPANESE J WATER WAS, V27, P666

[2]

AOYAMA K, 1986, JAPANESE J TOXICOLOG, V32, P85

[3] GEOSMIN AND METHYLISOBORNEOL BIOSYNTHESIS IN STREPTOMYCETES - EVIDENCE FOR AN ISOPRENOID PATHWAY AND ITS ABSENCE IN NON-DIFFERENTIATING ISOLATES [J].