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The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus >
No.25 (1978/12) >

 
Title :琉球藍の醗酵建に関する研究 : (第 3 報)インジゴ還元細菌について(農芸化学科)
Title alternative :Studies on the vat fermentation with Ryukyuai. : (3) On the indigo-reducing bacteria (Department of Agricultural Chemistry)
Authors :当山, 清善
川口, 義二
与那霸, 和雄
Authors alternative :Toyama, Seizen
Kawaguchi, Yoshiji
Yonaha, Kazuo
Issue Date :1-Dec-1978
Abstract :琉球藍の醗酵醪よりインジゴを還元する微生物の検索分離を行ない次の結果を得た。分離されたインジゴ還元力の強いNo.156菌株はpH9∿10で最も良い生育を示し, pH7以下では生育しない好アルカリ性細菌であった。No.156菌株の洗浄菌体によるインジゴの還元には酵母エキスの添加が極めて有効であった。インジゴ還元反応は, 嫌気的条件下において, pH10.0,30∿40℃, 40∿48時間で最も良い結果が得られた。さらに, 酵母エキス中に含まれるインジゴの還元因子は, 琉球藍の醗酵醪中にも存在することが判明した。
Isolation of indigo-reducing microorganism from the fermenting mash of Ryukyuai was studied. The results obtained were as follows. The isolated strain No. 156 showing the highest reduction of indigo cannot grow in neutral media, but well in alkaline media (pH 9-10). Ingido reduction by washed cells of the strain was promoted effectively by the presence of yeast extract. The optimum conditions for the reduction of indigo were as follows : pH; 10.0,reaction time; 40-48hr, temperature; 30℃, and without oxygen. It was suggested that a reducing factor was presented in yeast extract and the fermenting mash of Ryukyuai.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4199
Citation :琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.25 p.225 -233
Appears in Collections:No.25 (1978/12)

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