長崎市水道水の臭気に関する研究-2-臭気成分について

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It was described in section-I that the moldy odors from service water in Nagasaki City might be caused by some oscillatoria living in the reservoirs. In ordor to clarify the relations of oscillatoria with the moldy odors, the following studies were made. Oscillatoria and odor-producing materials were isolated from each reservoir in Nagasaki City. (Odor-producing materials were isolated by absorbing them with activated carbon.) Oscillatoria were cultivated in the laboratory and separated by centrifuge. Oscillatoria and the activated carbon were extracted with ether. Basic, acidic, phenolic, aldehyde and neutral compounds were separated from the ether extracts. The results may be summarized as follows. 1) The principal substance of moldy odors existed in the neutral compounds of ether extracts obtained from both oscillatoria and odor-producing materials. 2) In thin layer Chromatographic analysis of the neutral compounds, the substance was spotted around Rf 4.5. 3) The substance was detected in odor-producing materials, seemingly identical to ether extracts of oscillatoria, sampled from Urakami and a few other reservoirs in Nagasaki City.1)カビ臭の主成分はオシラトリアのエーテル抽出物の中性部に存在する. 2)オシラトリアのエーテル抽出物の中性部の薄層クロマトグラフィーの結果,臭気の主成分がRf 4.5付近に存在する. 3)浦上貯水池で過去数回にわたって発生した臭気物質および他の貯水池で発生したものは同一物質であることを確認した.
長崎大学水産学部の論文
1967-12-00

著者

森井秀昭
Faculty Of Food Science And Nutrition Beppu Universiy Beppu 874-8501

長崎市水道水の臭気に関する研究-2-臭気成分について

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