JP3988890B1 - 包接体及びこれを含む食品用静菌剤 - Google Patents
包接体及びこれを含む食品用静菌剤 Download PDFInfo
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- JP3988890B1 JP3988890B1 JP2006106577A JP2006106577A JP3988890B1 JP 3988890 B1 JP3988890 B1 JP 3988890B1 JP 2006106577 A JP2006106577 A JP 2006106577A JP 2006106577 A JP2006106577 A JP 2006106577A JP 3988890 B1 JP3988890 B1 JP 3988890B1
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Images
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- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
- General Preparation And Processing Of Foods (AREA)
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Abstract
【解決手段】 本発明の包接体は、チアミン誘導体がサイクロデキストリン類に包接された包接体であることを特徴とする。前記サイクデキストリン類は、好ましくは、未置換γ−CD、又は分岐鎖α−CD、分岐鎖β−CD及び分岐鎖γ−CDから選択された少なくとも2種からなる混合物である。前記包接体は、チアミン誘導体とサイクロデキストリン類とを溶解した溶液を噴霧乾燥して得られた包接体が好ましい。
【選択図】 なし
Description
。
(におい嗅ぎGC分析条件)
装置:ヒューレッドパッカード社製、商品名「HP5890A」
検出器:TCD(FID)、検出器温度:260℃
カラム:DB−5(0.53×30m 1μm)及びDB−WAX(0.53×30m 1μm)
カラム温度:60℃(5min)→(10℃/min)→260℃[DB−WAXの場合は230℃]
キャリアガス:He 60kPa
試料注入量:2μL、注入口温度:260℃
(GC−MSの分析条件)
装置:サーモエレクトロン社製、商品名「ポラリスQ」
検出器:電子イオン化法(EI法)、検出器温度:240℃
カラム:DB−5ms(0.32×30m 0.25μm)及びDB−WAX(0.32×30m 0.25μm)
カラム温度:60℃(5min)→(10℃/min)→260℃ [DB−WAXの場合は230℃]
キャリアガス:He 100kPa
試料注入量:2μL、注入口温度:260℃
後述する比較例1及び2に用いたチアミンラウリル硫酸塩各10mgをそれぞれ300mlの純水に添加し、60℃で減圧水蒸気蒸留した。留出液をエチルエーテルで抽出し、エチルエーテル層を濃縮後、下記の条件下でGC−MS分析を行った。これらの結果を図1〜図3に示す。
と同定した。
チアミンラウリル硫酸塩(純度99%:商品名「バイタミンSK」、(株)シンコー・サイエンスー・コーポレーション製、以下、「チアミンI」と称する)を食品用静菌剤として用いた。
チアミンラウリル硫酸塩(純度99%:商品名「ビタゲンAS5号」、田辺製薬(株)製、以下、「チアミンII」と称する)を食品用静菌剤として用いた。
比較例1に用いたチアミンラウリル硫酸塩(チアミンI)600gとサイクロデキストリン・マルトシルサイクロデキストリン混合物(商品名「イソエリートP」、塩水港精糖(株)製;総CD含量80%以上、このうち(全CD重量80%以上、このうち未置換CD(α、β、γの7:2:1混合物)30%以上、マルトシルCD(α、β、γの7:2:1混合物)50%以上)600gをお湯(約60℃)5リットルに添加し、ホモミキサーを用いて強攪拌により乳化処理した後、噴霧乾燥機(大川原化工機(株)製、商品名「L−12型」)を行い、チアミンラウリル硫酸塩(チアミンI)のCD包接体(包接体X)を得、これを食品用静菌剤として用いた。
実施例1において、CD・マルトシルCD混合物の代わりに、γ−CD(γ−CD99%以上含有:商品名「γ−100」、塩水港精糖(株)製)600gを用いた点以外は実施例1と同様の操作を行い、チアミンラウリル硫酸塩(チアミンI)のCD包接体(包接体Y)を得、これを食品用静菌剤として用いた。
実施例の食品用静菌剤各20mg及び比較例の食品用静菌剤各10mgをそれぞれ300mlの純水に添加し、60℃で減圧水蒸気蒸留した。留出液をエチルエーテルで抽出し、エチルエーテル層を濃縮後、下記の条件下でGC及びGC−MS分析を行い、チアミン誘導体特有の臭気である2-methyl-3-furanthioformateとbis(2-methyl-3-furyl) disulfideの含有量を定量した。なお、チアミン誘導体特有の臭気以外に、油脂様の臭いの原因となるドデカノールも同時に検出された。その結果を表1に示す。
装置:ヒューレッドパッカード社製、商品名「HP5890A」
検出器:TCD(FID)、検出器温度:260℃
カラム:DB−5(0.53×30m、1μm)
カラム温度:60℃(5min)→(10℃/min)→260℃
キャリアガス:He 60kPa
試料注入量:2μL、注入口温度:260℃
(GC−MSの分析条件)
装置:サーモエレクトロン社製、商品名「ポラリスQ」
検出器:電子イオン化法(EI法)、検出器温度:240℃
カラム:DB−5ms(0.32×30m、0.25μm)
カラム温度:60℃(5min)→(10℃/min)→260℃
キャリアガス:He 100kPa
試料注入量:2μL、注入口温度:260℃
静菌作用
実施例、比較例及び参考例で得た食品用静菌剤について、日本化学療法学会MIC測定法に基づき最小発育阻止濃度(MIC)を測定した。培地には、標準寒天培地(pH6.5)を使用した。これらの結果を表2に示す。表2中の値は、各食品用静菌剤におけるチアミンラウリル誘導体換算の濃度[μg/ml(ppm)]を示している。チアミン誘導体を包接した包接体を用いた実施例1は、チアミン誘導体を包接していない比較例1と同程度の静菌作用を発揮でき、実施例2は特に酵母に対して比較例1より優れた静菌効果が発揮されていた。
実施例1、実施例2、比較例1で得た食品用静菌剤について、各サンプルが過飽和となる量(溶解後の濃度が400重量ppm程度)を用いて、4℃又は20℃の水100mlに撹拌しながら添加した後、24時間撹拌を続けた。得られた分散液をペーパーフィルターで濾過することにより不溶分を除去し、0.1N塩酸を加えて熱還流することにより加水分解・中和後、メスアップしてサンプルとした。外部標準としてチアミン塩酸塩の検量線を用いて下記条件下でHPLC分析を行い、チアミンラウリル硫酸塩換算濃度に算出した。これらの結果を表3に示す。
(HPLCの分析条件)
カラム:STR ODS−II(4.6mmφ×150mm)
検出器:フォトダイオードアレイ[(株)島津製作所製、商品名「SPD−M10AVP」
移動層:1.0mMオクタンスルホン酸ナトリウムを含む100mMリン酸バッファー(pH2.1):アセトニトリル=9:1
カラム温度:40℃
流量:0.8mL/min
試料注入量:10μL
検出波長:λ210nm〜270nm(254nm)
実施例及び比較例の食品用静菌剤を温度40℃の水に溶解して、チアミンラウリル硫酸塩換算濃度が200g/ml(200ppm)のチアミン水溶液100mlを調製した。得られたチアミン水溶液の臭いをそれぞれ10人のパネルに嗅がせ、チアミン特有の強い臭気を感じた場合を「1」、チアミン特有の臭気を感じた場合を「2」、弱い臭気を感じた場合を「3」、同臭気をほとんど又は全く感じなかった場合を「4」との基準で各点数を付与し、合計点を比較した。得られた結果を表4に示す。これらの結果より、臭気が少ないと評価された順番は、実施例1、実施例2、比較例1、比較例2であって、実施例3における臭気の評価結果と良好な相関を示していた。
Claims (5)
- チアミン誘導体がサイクロデキストリン類に包接された包接体であって、前記チアミン誘導体とサイクロデキストリン類との構成割合が重量比でチアミン誘導体/サイクロデキストリン類=1/5〜10/1である固体の包接体。
- サイクロデキストリン(CD)類が、未置換γ−CD、又は未置換α−CD、未置換β−CD、未置換γ−CD、分岐鎖α−CD、分岐鎖β−CD及び分岐鎖γ−CDから選択された少なくとも2種からなる混合物である請求項1記載の固体の包接体。
- チアミン誘導体とサイクロデキストリン類とを溶解した溶液を噴霧乾燥して得られる請求項1又は2記載の固体の包接体。
- 請求項1〜3の何れかの項に記載の固体の包接体を有効成分として含む固体製剤である食品用静菌剤。
- 食品用日持ち向上剤に用いる請求項4記載の食品用静菌剤。
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CN109946270A (zh) * | 2017-12-21 | 2019-06-28 | 南京工业大学 | 一种β-环糊精修饰的CdTe量子点探针在检测农药毒死蜱中的应用 |
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CN107281501A (zh) * | 2017-05-27 | 2017-10-24 | 浙江大学 | 一种呋喃硫胺/6‑已基环糊精纳米粒体及体外抗hiv‑1活性的应用 |
CN109946270A (zh) * | 2017-12-21 | 2019-06-28 | 南京工业大学 | 一种β-环糊精修饰的CdTe量子点探针在检测农药毒死蜱中的应用 |
CN109946270B (zh) * | 2017-12-21 | 2020-11-03 | 南京工业大学 | 一种β-环糊精修饰的CdTe量子点探针在检测农药毒死蜱中的应用 |
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