NATURAL PRODUCT RESEARCH AND DEVELOPMENT ›› 2016, Vol. 28 ›› Issue (4): 601-606.doi: 10.16333/j.1001-6880.2016.4.024

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Static Adsorption and Desorption of Rosmarinic Acid on Macroporous Resins

CHENG Xian1,BI Liang-wu1,2,3*,ZHAO Zhen-dong1,2,3,ZHANG Feng1   

  1. 1 Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical  Utilization;Key and Open Lab.of Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province,Nanjing 210042,China; 2 Research Institute of Forestry New Technology,CAF,Beijing 100091, China; 3 2011 Collaborative Innovation Center of Jiangxi Typical Trees Cultivation and Utilization in Jiangxi Agricultural University,Nanchang Jiangxi 330045,China
  • Online:2016-04-30 Published:2016-05-13

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Abstract: The static adsorption and desorption behaviors of four macroporous resins (AB-8,D101,X-5,NKA-II ) for enriching rosmarinic acid (RA) from Rosmarinus offinalis L.leaves were investigated.AB-8 was selected as the favorable resin,according to adsorption capacity,desorption capacity,adsorption rate and desorption rate.The effect of temperature and time on the static adsorption of AB-8,as well as,the effect of temperature and ethanol concentration on the static desorption of AB-8 were then investigated.The process of static adsorption was analyzed through kinetics and thermodynamics.The results showed that the pseudo-second-order kinetics model,Langmuir equation and Freundlich equation can be applied in representing the adsorption process.Ethanol concentration was the key factor on desorption rate of RA on AB-8 resin.

Key words: rosmarinic acid, macroporous resins, static adsorption, static desorption

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