化学
肺表面活性物质
紫苏
花青素
泡沫分离
表面张力
色谱法
纳米颗粒
分馏
萃取(化学)
化学工程
有机化学
食品科学
原材料
生物化学
量子力学
物理
工程类
作者
Chun-Ting Lin,Nan Hu,Chen Zhao,Xiaodan Sun,Rong Han,Yanna Lv,Zhijun Zhang
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-11-01
卷期号:427: 136708-136708
被引量:1
标识
DOI:10.1016/j.foodchem.2023.136708
摘要
Anthocyanin (ACN) is a natural pigment with significant industrial applications. However, foam fractionation of ACN from perilla leaves extract presents theoretical challenges due to its limited surface activity and foaming capacity. This work developed a surfactant-free active Al2O3 nanoparticle (ANP) as a collector and frother, which was modified with adipic acid (AA). The ANP-AA efficiently collected ACN through the electrostatic interaction, condensation reaction, and hydrogen bonding, with a Langmuir maximum capacity of 129.62 mg/g. Moreover, ANP-AA could form a stable foam layer by irreversibly adsorbing on the gas–liquid interface, reducing surface tension, and alleviating liquid drainage. Under the appropriate conditions of ANP-AA 400 mg/L and pH 5.0, we achieved a high ACN recovery of 95.68% with an enrichment ratio of 29.87 after ultrasound-assisted extraction of ACN from perilla leaves. Additionally, the recovered ACN displayed promising antioxidant properties. These findings hold significant importance in the food, colorant, and pharmaceutical industries.
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