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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 14号
  1. 部局別インデックス
  2. 農学部

泡盛麹菌に関する研究(第 2 報) : 泡盛醸造所から分離された泡盛麹菌のアミラーゼ及びプロテアーゼの 2,3 性質について(農芸化学科)

http://hdl.handle.net/20.500.12000/4578
http://hdl.handle.net/20.500.12000/4578
e0d75611-4894-4f06-acfe-82fe55578183
名前 / ファイル ライセンス アクション
KJ00000161563.pdf KJ00000161563.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル 泡盛麹菌に関する研究(第 2 報) : 泡盛醸造所から分離された泡盛麹菌のアミラーゼ及びプロテアーゼの 2,3 性質について(農芸化学科)
言語 ja
作成者 当山, 清善

× 当山, 清善

ja 当山, 清善

宮里, 興信

× 宮里, 興信

ja 宮里, 興信

Toyama, Seizen

× Toyama, Seizen

en Toyama, Seizen

Miyazato, Koshin

× Miyazato, Koshin

en Miyazato, Koshin

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 泡盛友種麹並びに麹中から分離されたAsp.awamori Type 29-2の麸麹抽出液を用いてアミラーゼ及びプロテアーゼの2,3の性質を検討した結果次のことが明らかになった。1)α及びβ-アミラーゼの生成は培養後50時間で最高に達した。2)α及びβ-アミラーゼの作用至適pHはそれぞれ4.5∿6.2,3.5∿7.0にあった。3)β-アミラーゼ活性の作用至適温度は50℃にあり, 55℃以上では暫時減少した。また酵素液をpH5.0以下に40℃, 30分間保つとその活性は急激に不活性化された。4)プロテアーゼの生成は培養後30∿60時間にあり, 70時間以後では活性を殆んど示さなかった。プロテアーゼ活性の作用至適pHを検討した結果pH2.7に強い活性があり, pH5.5に弱い活性のピークがあった。
内容記述タイプ Other
内容記述 By using a strain 29-2 of Aspergillus awamori type isolated from awamoriTomodane-KojiorKoji, some properties of amylase and protease were investigated. The results obtained were as follows : 1) The maximum production of α-and β-amylase were obtained within 50 hours when the strain was cultured on wheat-bran (Koji). 2) The optimum pH of α-amylase activity was in the range of pH values from 4.5 to 6.2,and that of β-amylase activity was from 3.5 to 7.0. 3) The optimum temperature for the activity of β-amylase was 50℃, and gradually decreased above 55℃. 4) The activity of β-amylase was stable above pH 5.0 when incubated at 40℃ for 30 minutes, but it was rapidly inactivated below pH 5.0. 5) The highest activity of protease at pH 2.7 on milk casein as a substrate was found between 30 to 60 hours after cultivation on wheat-bran. The maximum peaks of the protease activity on milk casein were present at pH 2.7 and 5.5,and the peak of the former was higher than that of the latter.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 eng
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/4578
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 14, p. 161-166
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