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The hydrolysis degree of starch prepared from broken rice of Thailand was rapidly increased with increasing time up to 2 hr. The limit of hydrolysis of the starch by this enzyme was 82%. It was found that the enzyme could digest raw rice starch maximally at pH 3.2-3.5. The enzyme was very active on raw rice starch such as glutinous, nonglutinous and broken rices but was only a little active on raw potato starch.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3817"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "39", "bibliographicPageEnd": "134", "bibliographicPageStart": "125"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161702.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002846/files/KJ00000161702.pdf"}, "version_id": "e797139e-6d20-4e59-8239-21a03ec45465"}]}, "item_title": "\u6ce1\u76db\u9eb9\u83cc\u306e\u751f\u7523\u3059\u308b\u03b1-\u30a2\u30df\u30e9\u30fc\u30bc\u304a\u3088\u3073\u30b0\u30eb\u30b3\u30a2\u30df\u30e9\u30fc\u30bc\u306e\u9175\u7d20\u5316\u5b66\u7684\u6027\u8cea(\u751f\u7269\u8cc7\u6e90\u79d1\u5b66\u79d1)", "item_type_id": "15", "owner": "1", "path": ["1642837918002", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3817", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002846", "relation": {}, "relation_version_is_last": true, "title": ["\u6ce1\u76db\u9eb9\u83cc\u306e\u751f\u7523\u3059\u308b\u03b1-\u30a2\u30df\u30e9\u30fc\u30bc\u304a\u3088\u3073\u30b0\u30eb\u30b3\u30a2\u30df\u30e9\u30fc\u30bc\u306e\u9175\u7d20\u5316\u5b66\u7684\u6027\u8cea(\u751f\u7269\u8cc7\u6e90\u79d1\u5b66\u79d1)"], "weko_shared_id": -1}
  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 39号
  1. 部局別インデックス
  2. 農学部

泡盛麹菌の生産するα-アミラーゼおよびグルコアミラーゼの酵素化学的性質(生物資源科学科)

http://hdl.handle.net/20.500.12000/3817
http://hdl.handle.net/20.500.12000/3817
5174cf37-ae35-4751-bf95-faa6c80f245f
名前 / ファイル ライセンス アクション
KJ00000161702.pdf KJ00000161702.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 泡盛麹菌の生産するα-アミラーゼおよびグルコアミラーゼの酵素化学的性質(生物資源科学科)
言語 ja
作成者 安田, 正昭

× 安田, 正昭

ja 安田, 正昭

山田, 剛史

× 山田, 剛史

ja 山田, 剛史

石原, 昌信

× 石原, 昌信

ja 石原, 昌信

当山, 清善

× 当山, 清善

ja 当山, 清善

Yasuda, Masaaki

× Yasuda, Masaaki

en Yasuda, Masaaki

Yamada, Takeshi

× Yamada, Takeshi

en Yamada, Takeshi

Ishihara, Masanobu

× Ishihara, Masanobu

en Ishihara, Masanobu

Toyama, Seizen

× Toyama, Seizen

en Toyama, Seizen

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 酵素活性及び生酸性のバランスがとれた泡盛麹菌(Aspergillus awamori, Nakazawa IFO 4033)の生産するα-アミラーゼ及びグルコアミラーゼの酵素化学的諸性質を検討し,以下の結果を得た。(1)供試菌株の生産するα-アミラーゼの反応最適pHは4.5∿5.5,pH安定性は3.0∿6.0の範囲で安定であった。本酵素の反応最適温度は65℃,温度安定性は60℃まで安定であった。(2)供試菌株の生産するグルコアミラーゼの最適pHは5付近(4.3∿5.3)で,pH安定性は3.5∿6.0の範囲で安定であった。本酵素の反応最適温度は60℃,温度安定性は60℃まで安定であった。(3)供試菌株グルコアミラーゼの米(タイ国産砕米,うるち,もち),馬鈴薯,甘藷,小麦,とうもろこしの糊化デンプンに対する反応性を調べたところ,いずれも可溶性デンプンとほぼ同様の値を示した。(4)供試菌株グルコアミラーゼのタイ国産砕米デンプンに対する加水分解率は反応時間の経過に伴い増大し,反応24時間における値は82%であった。(5)供試菌株の生デンプン(タイ国産砕米)の分解活性の反応最適pHは3.2∿3.5であった。(6)供試菌株の各種生デンプン分解活性はウルチ米,タイ国産砕米及びもち米などで高い値を示し,小麦やとうもろこしにも比較的高い値を示した。しかし,生馬鈴薯デンプンに対する分解活性は著しく低い値を示した。
内容記述タイプ Other
内容記述 Awamori koji prepared by growing Aspergillus awamori on steamed rice is a very important material for the production of awamori beverage which is a traditional distilled liquor in Okinawa Prefecture, Japan. In awamori beverage production, the strain which has high amylolytic enzyme activities and acid productivity is needed. And thus, screening of Aspergillus awamori for the object was carried out as reported in the previous paper. In this paper, properties of α-amylase and glucoamylase from selected strain (Aspergillus awamori) were investigated. α-Amylase had the maximum reactivity at pH 4.5-5.5 and 65℃. The enzyme was quite stable in a range of pH 3.0-6.0,and stable up to 65℃. Glucoamylase had the maximum reactivity at pH 4.3-5.5 and 60℃. The enzyme was stable in a range of pH 3.5-6.0 and stable up to 60℃. Glucoamyase was active on the gelatinized starch prepared from glutinous rice, nonglutinous rice, broken rice imported from Thailand (raw material for awamori beverge, indica type), potato, sweet potato, wheat and corn as well as soluble starch. The hydrolysis degree of starch prepared from broken rice of Thailand was rapidly increased with increasing time up to 2 hr. The limit of hydrolysis of the starch by this enzyme was 82%. It was found that the enzyme could digest raw rice starch maximally at pH 3.2-3.5. The enzyme was very active on raw rice starch such as glutinous, nonglutinous and broken rices but was only a little active on raw potato starch.
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 jpn
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/20.500.12000/3817
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 39, p. 125-134
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