A PLANKTONIC OSCILLATORIA SPECIES FROM MISSISSIPPI CATFISH PONDS THAT PRODUCES THE OFF-FLAVOR COMPOUND 2-METHYLISOBORNEOL

被引：67

作者：

MARTIN, JF ^{[1
]}

IZAGUIRRE, G ^{[1
]}

WATERSTRAT, P ^{[1
]}

机构：

[1] METROPOLITAN WATER DIST SO CALIF,LA VERNE,CA 91750

来源：

WATER RESEARCH | 1991年 / 25卷 / 12期

关键词：

2-METHYLISOBORNEOL; AQUACULTURE; CHANNEL CATFISH; ISOLATION; MIB; OSCILLATORIA; PLANKTONIC ALGAE;

D O I：

10.1016/0043-1354(91)90173-N

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A planktonic, gas-vacuolate Oscillatoria species was isolated from catfish ponds in Mississippi during an episode of off-flavor and high 2-methylisoborneol (MIB) levels. Volatile compounds from unialgal cultures were isolated using closed-loop stripping, liquid-liquid extraction, and analyzed by gas chromatography and mass spectroscopy. The organism produced MIB at 75-87-mu-g l-1 after 2-3 wk of incubation at 25-degrees-C. The alga was found in moderate to high numbers in three pond water samples with high MIB levels, and low numbers in two other samples with low MIB levels. The organism was not present (less than one organism/10 ml) in nine other samples characterized by a "woody" or "swampy" odor and no detectable MIB. This Oscillatoria strain is believed to be the first blue-green alga that produces MIB ever isolated from Mississippi catfish ponds, and may be a cause of the off-flavor problem associated with MIB in those systems.

引用

页码：1447 / 1451

页数：5

共 20 条

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