バナナ保存のためのキトーサンベースの機能的コーティングの開発における水熱処理によるCeO2の役割
Thuong Thi Nguyen1,2, Bao-Tran Tran Pham3,2, Dinh Thien Le4,5
1Faculty of Applied Science and Technology, Nguyen Tat Thanh University Ho Chi Minh City Vietnam nthithuong@ntt.edu.vn +84-985-090-912.
RSC advances
|September 5, 2025
まとめ
この研究では,バナナの保存期間を延長するキトサン-セリアナノ粒子コーティングを開発しました. ナノ複合材料のコーティングは成熟を遅らせ,より長い期間バナナの品質を保ちました.
科学分野:
- 材料科学
- 食品科学
- ナノテクノロジー
背景:
- チトザン (CS) は,食品保存の可能性があるバイオポリマーです.
- Ceria nanoparticles (CeO2NP) は,素材の強化のためのユニークな特性を提供しています.
- バナナのような収穫後の果物の保存期間を延長することは 経済的に重要です
研究 の 目的:
- キトーサンと水熱で調製されたセリアナノ粒子 (hCeO2NP) を使用して新しいナノ複合材料のコーティングを作成する.
- 収穫後のバナナの寿命を延ばすナノ複合材料の効果を評価する.
- 保存中のバナナの物理化学的性質に対するコーティングの影響を評価する.
主な方法:
- hCeO2NPの合成と特徴づけ
- CS-hCeO2ナノ複合材料のコーティングフィルムの製造
- コーティングの性質の評価:形質的,構造的,機械的,水阻害,UV阻害
- バナナの物理化学的性質の評価:視覚的特徴,色,呼吸,堅さ,体重減少,TSS,酸性,熟成速度,および12日間のpH
主要な成果:
- 1~2% (w/w) のhCeO2NPを組み込むことで,CSコーティングの水浸透性,溶解性,膨胀指数,破裂抵抗性,および柔軟性が著しく改善された.
- 1.5% (w/w) のhCeO2 NP添加は,CSの骨折強度を3.5倍,可塑性を1.6倍に高めました.
- CS-hCeO2ナノ複合材料のコーティングは,UVBとUVCの範囲で優れたUVバリア特性を示しました.
- CS-1.5%-hCeO2コーティングはバナナの熟成を効果的に遅らせ,通常のCS,商用キトーサン,およびコーティングされていないバナナを上回り,果物の品質を維持しました.
結論:
- 開発されたCS-hCeO2ナノ複合材料のコーティングは,機械的およびバリア特性を強化します.
- この新しいコーティングは バナナの熟成を阻害することで 保存期間を大幅に延長します
- CS-hCeO2ナノ複合材料のコーティングは,収穫後のバナナの保存に好ましい解決策です.
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