キトサンとカルボキシメチルキトサンのナノキャリアは,マンゴーシードエキスの安定性と抗菌作用を高め,収穫後のイチゴの品質を向上させます
Eman S El-Ashaal1,2, Hisham A Elshoky3,4, Nayera M El-Sayed5
1Nanotechnology and Advanced Material Central Lab, Agricultural Research Center, Giza, 12619, Egypt.
Scientific reports
|August 26, 2025
まとめ
カルボキシメチルキトサン (CCS) のナノ粒子に混ぜたマンゴー種子抽出物 (MSE) から作られた食用コーティングは,イチゴの品質を大幅に改善しました. ストロベリー の 保存 期間 を 延長 する
科学分野:
- 食品科学
- 材料科学
- バイオテクノロジー
背景:
- トウモロコシは腐りやすいので 湿度や代謝や微生物によって 品質が低下します
- 自然の抗酸化物質と 先進的なナノ粒子技術は 収穫後の保存のための 潜在的な解決策を提供します
研究 の 目的:
- マンゴーシードエキス (MSE) をキトーサン (CS) とカルボキシメチルキトーサン (CCS) のナノ粒子にカプセル化した食用コーティングを開発し,評価する.
- 収穫後の品質を向上させ ストロベリーの保存期間を延長します
主な方法:
- ナノ粒子 (CS LM,CCS LM) は,ダイナミック・ライト・スキャタリング (DLS) を使用して合成され,サイズと安定性を特徴付けました.
- 抗酸化作用はABTSとDPPH測定法で測定され,抗菌効果はS. aureus,E. coli,C. albicansに対して試験された.
- ストロベリーをコーティングして21日間2°Cで保存し,減量,固さ,色,pH,酸性,微生物の量をモニタリングした.
主要な成果:
- CCS LMナノ粒子は,フリーMSEとCS LMと比較して,より優れた抗酸化活性 (> 92%) を示した.
- コーティングは,検査された病原体に対する有意な抗菌抑制率を示した.
- CCS LMでコーティングされたイチゴは減量 (5.7%),堅さを維持し,バクテリア (1.2 log10 CFU/g) と真菌 (1.3 log10 CFU/g) の数値が低い.
結論:
- マンゴーシードエキスを加えたカルボキシメチルキトサンナノ粒子は 効果的な抗酸化物質と抗菌剤を 提供します
- この食用コーティングは,収穫後の品質とストロベリーの貯蔵性能を改善するための持続可能な戦略です.
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