WEKO3
アイテム
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桑の実アントシアニン色素の安定性(B. 生活科学)
https://kpu.repo.nii.ac.jp/records/5361
https://kpu.repo.nii.ac.jp/records/536178b247b9-0c4d-410d-8cba-9e88421dc1fa
名前 / ファイル | ライセンス | アクション |
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KJ00000079487.pdf (393.9 kB)
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Item type | [ELS]紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2017-02-20 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 桑の実アントシアニン色素の安定性(B. 生活科学) | |||||
その他(別言語等) | ||||||
その他のタイトル | Stability of Anthocyanin Pigments of Mulberry(B. LIVING SCIENCE) | |||||
言語 | en | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
著者 |
牧, 善輔
× 牧, 善輔× 田代, 操× 稲本, 英子 |
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抄録(日) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 桑の実より3種類の粗色素液, MP-1(糖成分を多量に含有する濃縮色素), MP-2(イオン交換樹脂Dowex 50W-X4,H型, 処理により糖を主体とする非吸着成分を除去した濃縮色素), MP-3(Candida utilisを培養して糖成分と少量の窒素成分を除去した濃縮色素)を調製し, その安定性を検討した。これらの色素はpH3.0以下の酸性のもとで, 鮮明な紫紅色を呈したが, pHの上昇とともに著しい淡色化と色調の変化が見られた。pH2.2,100℃の加熱処理により, いずれも徐々に退色したが, その速度は市販のベタシアニン系天然色素に比べると著しく遅く, 天然色素としては安定な部類に属することが明らかとなった。紫外線に対しては, MP-1,MP-2は強酸性下で不安定であったが, その程度は合成色素(赤色102号)と同等であり, 一方, 醗酵した桑の実色素MP-3は強酸性下においてもきわめて安定であった。さらに市販炭酸飲料に, 桑の実色素を添加し着色安定性を調べたところ, 十分実用化に耐える結果を示した。本研究の一部は文部省科学研究費補助金の援助によった。 | |||||
言語 | ja | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Three crude anthocyanin pigments, MP-1,MP-2 and MP-3,were prepared from mulberry juice, and their stability was examined. MP-1,MP-2 and MP-3 showed a deep red color below pH 3.0,but they lost their color with a rise in pH value. MP-1,MP-2 and MP-3 were slowly discolored by heat treatment at 100℃ and pH 2.2,but the rate of decolorization was lower than that of a natural pigment, betacyanin CBR. MP-1 and MP-2 were also unstable to UV irradiation under a strongly acidic condition, but the degree was similar to that of a synthetic pigment, Red 102. On the other hand, MP-3 was considerably stable to UV irradiation. Furthermore, storage tests of pigments in carbonated-water indicated that these mulberry pigments had a great practical value. | |||||
言語 | en | |||||
書誌情報 |
ja : 京都府立大学学術報告. 理学・生活科学 en : The scientific reports of the Kyoto Prefectural University. Natural science and living science 巻 32, p. 23-28, 発行日 1981-11-20 |
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雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00062300 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0075739X |