著者

玉利 正人 池田 まどか 久冨 貴子 青山 佐和子

出版者

長崎大学教育学部

雑誌

長崎大学教育学部自然科学研究報告 = Science bulletin of the Faculty of Education, Nagasaki University (ISSN:0386443X)

巻号頁・発行日

vol.51, pp.75-82, 1994-05-31

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We wish to report on the effect of cooking on the properties and amounts of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in fish, Pasific Saury. Change of EPA and DHA contents by cooking was investigated by gas chromatography. The contents of EPA and DHA of pacific saury were reduced by cooking. The most profound decreases in EPA and DHA contents occurred when pacific saury was broiled and boiled. The EPA and DHA were decreased to about 36% and 37% of the initial values by cooking of broil for 2 min., respectively. The EPA and DHA were decreased to about 30% and 36% by cooking of boil for 2 min., respectively. The EPA and DHA were decreased to about 52% and 49% by cooking of steam for 2 min., respectively. The EPA and DHA were decreased to about 81% and 77% by cooking of fry for a min., respectively. The EPA and DHA were decreased to about 72% and 67% by cooking of oven range for a min., respectivily. It has been demonstrated the stability of the EPA and DHA to cooking methods.

著者

荒生 公雄 牧野 保美 永木 嘉寛

出版者

長崎大学教育学部

雑誌

長崎大学教育学部自然科学研究報告 = Science bulletin of the Faculty of Education, Nagasaki University (ISSN:0386443X)

巻号頁・発行日

vol.30, pp.65-74, 1979-02-28

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Yellow sand, that is, a heavy dust storm over the Far East is studied from a viewpoint of statistical and synoptic meteorology. Secular variation of annual number of days with yellow sand at Nagasaki is shown for the 62-year period between 1914 and 1975. The mean annual number of days is 5.3 days and 85 percent of them belong to spring. The travelling velocity of dust particles estimated from the surface observations in Japan islands almost corresponds to the westerly wind at an altitude of 4km. The size distribution of yellow sands collected at Nagasaki agrees with the power law distribution with the value of γ=3.0~3.5, where γ is the radius exponent defined by n(r)=Cr-γ.

著者

竹友 一成

出版者

長崎大学教育学部

雑誌

長崎大学教育学部自然科学研究報告 = Science bulletin of the Faculty of Education, Nagasaki University (ISSN:0386443X)

巻号頁・発行日

no.25, pp.69-78, 1974-02-28

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有機塩基のライネッケートを試料とするイオン交換ぺ一パークロマトグラフィーを試み,次の結果を得た。(1)イオン交換紙としてアンバーライトSA-2を,展開液として1M-Na2HPO4-NaOH:緩衝液(pH15.50)を用いて,有機塩基のラィネッケートからもとの有機塩基を遊離再生せしめるための特別の操作を行なうことなく,有機塩基の分離,検出および定量を迅速かつ簡単に行なうことができた。(2)有機塩基の遊離再生に関与する因子は光エネルギーおよびアンバーライトSA-2であった。(3)本法をアキのノゲシおよびオニタビラコに適用し,それぞれコリンを迅速かつ簡単に検出することができた。