不同灭菌方法对甘汁的外观,成分和风味的影响
Ronghua Chen1, Min Yu1, Bo Jiang1
1State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu, China.
Journal of food science
|February 8, 2024
概括
消毒 (PTG) 更好地保留了甘汁 (SCJ) 的风味和外观,而不是高温,高压 (HTHP) 自动封装. 在HTHP中改变SCJ.
科学领域:
- 食品科学 食品科学 食品科学
- 食品化学 食品化学
- 饮料技术 饮料技术
背景情况:
- 甘汁 (SCJ) 是一种富含维生素,碳水化合物和抗氧化剂的营养饮料.
- 绝育方法显著影响果汁的感觉和营养特征.
- 了解不同灭菌技术对SCJ的影响对于保持其质量至关重要.
研究的目的:
- 评估巴氏杀菌 (PTG) 和自封 (HTHP) 对冷压甘汁的风味,外观和营养价值的影响.
- 为了比较PTG和HTHP绝育方法对SCJ特征产生的变化.
- 为了确定负责灭菌SCJ的风味和芳香变化的关键化合物.
主要方法:
- 冷压甘汁经过两种杀菌方法:巴氏杀菌 (63°C30分钟) 和自封化 (115°C30分钟).
- 分析包括布里克斯值,pH值,颜色 (L*值),糖含量 (葡萄糖,果糖),有机酸和芳香化合物.
- 感官评估侧重于风味概况和挥发性化合物的识别.
主要成果:
- 布里克斯值和pH值在热处理过程中显示出最小的变化.
- 与对照和PTG相比,HTHP治疗显著增加了L*值 (颜色) ~21%.
- 与PTG和对照组相比,HTHP的葡萄糖和果糖含量显著增加;PTG的糖含量与对照组保持相似.
- 确定了77种芳香化合物;氨酸,八醇和β-damascenone是主要的风味贡献者.
- 消毒保存了原来的SCJ风味,而HTHP诱导了梅拉德反应,产生了和化合物,改变了风味特征.
结论:
- 消毒 (PTG) 有效地保留了甘汁的原始感官和营养特征.
- 高温,高压 (HTHP) 自动封装显著改变了SCJ的颜色,增加了糖含量,并由于梅拉德反应赋予了独特的风味.
- 为了保持甘汁的天然质量,消毒是首选的消毒方法,而不是HTHP.
相关概念视频
Methods of Sterilization I: Physical Methods
19.9K
As used in a healthcare facility, sterilization destroys all microorganisms through physical or chemical methods. The physical method includes steam, dry heat, boiling water, and radiation.
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
Steam sterilization uses non-toxic, low-cost moist heat in the form of saturated steam under pressure, which is fast, microbicidal, and sporicidal, and quickly warms and penetrates fabrics. Autoclaves, or steam sterilizers, expose each item to direct steam contact for a predetermined time at the necessary...
19.9K
Methods of Sterilization II: Chemical Methods
6.3K
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,...
6.3K
Physical Properties Affecting Solubility
22.7K
Solutions of Gases in Liquids
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
22.7K
Cleaning, Sterilization, and Disinfection
6.8K
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
6.8K


