ジンジャー抽出物の溶解性を高めるため,ジンジャー抽出物の自己ナノエミュルサイゼーション薬剤投与システムの開発
Maung Maung Than1, Chuda Chittasupho2, Songwut Yotsawimonwat2
1Ph.D. Degree Program in Pharmacy, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, Thailand.
Drug discoveries & therapeutics
|February 15, 2026
まとめ
この研究では,ジンジャーエキスを改善するために自己ナノエミュルサイゼーション薬剤投与システム (SNEDDS) を開発しました.
科学分野:
- 薬理学と医薬品科学について
- 自然製品化学 自然製品化学
- マテリアルサイエンス 材料科学
背景:
- ジンジャー (Zingiber officinale) は健康に有益ですが,その活性化合物である6-ジンジェロールは溶解性と安定性が悪いです.
- 経口投与の強化は,生の治療的可能性を最大化するために非常に重要です.
研究 の 目的:
- ジンジャーエキスの経口投与を改善するための自己ナノエミュルサイゼーション薬剤投与システム (SNEDDS) の策定.
- 6-ジンジャーロルの溶解性と安定性を高めるための実験設計 (DoE) のアプローチを使用して,SNEDDS製剤の最適化.
主な方法:
- ジンジャーエキスを得るために超音波補助抽出法を使用し,6ジンジェロール含有量を最適化しました.
- カスタード油,クレモフォールRH40,共表面活性剤 (Span 20/80),共溶剤 (PEG 400/エタノール) を使用してSNEDDSを開発するためにI最適の混合物設計が採用されました.
- 特徴付けには,ドロップレットサイズ分析,封じ込め効率,インビトロ放出研究,伝送電子顕微鏡 (TEM) が含まれていた.
主要な成果:
- 最適化されたSNEDDSは,胃介質で容易にナノエムルション (42.5-78.1 nm) を形成します.
- ジンジャー抽出物で満たされたSNEDDS (G-SNEDDS) は,6 - ジンジェロールと6 - ショガロールの封じ込め効率を>90%を達成しました.
- G-SNEDDSから生じる6ジンゲロールのインビトロ放出は48時間間で90~100%に達し,未成形抽出物 (67%) よりも著しく高かった.
- TEMは,均一で球状のナノエムルションの滴を確認しました.
- 調合物は,環境条件下での短期的な安定性が良好であったが,高温は6ジンジェロールから6ショガールへの変換を加速した.
結論:
- 開発されたSNEDDSは,ジンジャー抽出物の溶解性,溶解性,および安定性を著しく高めました.
- この製剤は,生の活性化合物の経口生物利用性を改善するための有望な戦略を示しています.
- 長期的な安定性およびin vivo有効性に関するさらなる研究が必要である.
関連する概念動画
Bioavailability Enhancement: Drug Solubility Enhancement
278
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
278
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
227
Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
227
Factors Affecting Dissolution: Particle Size and Effective Surface Area
1.8K
Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
1.8K
Bioavailability Enhancement: Drug Permeability Enhancement
216
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
216
Oral Drug Delivery Systems: Delayed-Release Systems
24
Delayed-release drug delivery systems are specialized pharmaceutical formulations designed to postpone the release of active compounds until the drug reaches a specific region of the gastrointestinal (GI) tract, typically the intestine. These systems are essential for drugs that may cause gastric irritation, are unstable in acidic environments, or need to exert therapeutic effects locally in the intestinal or colonic regions.The core feature of delayed-release systems is the use of enteric...
24
Factors Affecting Dissolution: Drug Permeability, Stability and Stereochemistry
572
Orally administered drugs primarily enter the systemic circulation via passive diffusion through the intestinal membranes. The drug's absorption is influenced by drug stability in the gastrointestinal GI tract, membrane permeability, the surface area available for absorption, luminal drug concentration, and residence time in the lumen. Drug permeability can be enhanced by adjusting the lipophilicity, polarity, or molecular size of the drug, promoting its passive transport across intestinal...
572


