Open AccessPreparation of Gamma Polyglutamic Acid (Γ-PGA)/Gelation Composite Nanoparticle and Application on Osmanthus Fragrance Slow-Release
Author(s) -
Xinbin Ma,
Shuai Zhao,
Yuxi Chen,
Shiwen Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/612/2/022024
Subject(s) - gelatin , nanoparticle , chemical engineering , materials science , composite number , chemistry , precipitation , nanotechnology , organic chemistry , composite material , engineering , physics , meteorology
In order to extend the incense period, to improve the stability and processability of osmanthus fragrance. It has not reported to use γ-PGA/Gelatin nanoparticle preparate coated fragrance. This research used γ-PGA/Gelatin nanoparticles after embedding essence, observed its property index. γ-PGA/Gelatin nanoparticle was investigated with respect to its optimum experiment process and microencapsulation technology. Through coagulation precipitation, which is an ionic self-assembly process, a large amount obtained of non-toxic and edible. Thermogravimetric analysis uncovered that fragrance-γ-PGA/Gelatin nanoparticles were surprisingly well conserved at rapidly increasing temperature. E-nose measurement revealed fine stability of scent. The yield was obtained as 41.6g/L which increased by 32.9% under optimized conditions and less waste was created. As the temperature increased from 0°C to 200 °C, the coated fragrance lost only by 11% while bare fragrance molecules almost fully evaporated. The unchanged and stable scent and a superior ability of heat resistant were attributed to the nano-size effect of fine structure and good characteristics of the incorporation of γ-PGA and gelatin.