从alpha-cyclodextrin中持续释放气态二氧化物:一种创新的草保存方法
Linyan Chen1, Haohan Jing1, Yuhe Dong2
1Faculty of Medicine, Macau University of Science and Technology, Taipa 999078, Macau.
Food chemistry
|February 1, 2025
概括
这项研究开发了一种安全的方法来储存和处理二氧化 (ClO2),使用α-cyclodextrin (α-CD) 纳入复合物. ClO2@α-CD有效地抑制了真菌生长,并延长了草的保质期.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 传统的二氧化 (ClO2) 生产带来了由于集中气体的安全风险.
- 需要稳定,安全的方法,用于ClO2在食品保存中的应用.
研究的目的:
- 开发一种安全稳定的二氧化 (ClO2) 储存和应用方法.
- 评估缩在α-cyclodextrin (α-CD) 中的ClO2对控制草收获后疾病的疗效.
主要方法:
- 二氧化 (ClO2) 分子被封装在α-cyclodextrin (α-CD) 中,形成包含复合体 (ClO2@α-CD).
- ClO2@α-CD的有效性被测试在PDA上对黑色阿斯伯吉路斯菌和注射草.
- 进行了商业储存模拟,以评估ClO2@α-CD对自然腐烂的草的影响.
主要成果:
- 用0.25克ClO2@α-CD进行雾化完全抑制了阿斯伯吉illus niger的生长.
- 0.5g的ClO2@α-CD剂量显著降低了草腐烂的发生率和严重程度.
- 在储存模拟中,5克ClO2@α-CD将自然腐烂的发生率降低了近50%,同时保持了水果的质量.
结论:
- ClO2@α-CD为ClO2应用提供了一个安全而稳定的替代方案.
- 这种方法有效控制收获后的真菌病,并延长水果的保质期.
- ClO2@α-CD显示出商业应用的潜力,用于保存新鲜农产品.
相关概念视频
Methods of Sterilization II: Chemical Methods
In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Using chemical sterilization rather than heat to clean out equipment is recommended. It eradicates and removes all bacteria,...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
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...
Oral Drug Delivery Systems: Delayed-Release Systems
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...
Principles of Food Preservation
Food spoilage results from microbial growth, enzymatic activity, and environmental factors that gradually degrade the sensory, nutritional, and safety qualities of food. Preservation techniques aim to slow or halt these processes to extend shelf life and maintain product quality.A key concept in food microbiology is the microbial growth curve, which includes four phases: lag, exponential (log), stationary, and death. During the lag phase, bacteria adjust to their environment without significant...
Methods of Controlling Food Spoilage
Food spoilage is caused by microbial growth or by chemical and physical changes, all of which affect the taste, texture, and safety of food.Temperature-Based PreservationRefrigeration at 0–4 °C slows microbial growth and enzyme activity, making it ideal for short-term storage. However, certain spoilage organisms—such as psychrotrophs like Listeria monocytogenes—can still proliferate at these temperatures. Freezing below -18 °C further slows biological processes by forming ice crystals, which...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...


