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《Chemistry and Industry of Forest Products》 2011-02
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Variation Rule of Hydroxytyrosol Content in Olive Leaves

YE Jian-zhong1,2,WANG Cheng-zhang1,2,CHEN Hong-xia1,ZHOU Hao1(1.Institute of Chemical Industry of Forestry Products,CAF;National Engineering Lab.for Biomass Chemical Utilization;Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material,Jiangsu Province;Nanjing 210042,China;2.Institute of New Technology of Forest,CAF,Beijing 100091,China)  
Hydroxytyrosol was extracted from 5 breeds of olive leaves from different tree ages by ultrasonic extraction using 90 % MeOH-H2O and analyzed by HPLC method.Simultaneously,the conversion trend of oleuropein into hydroxytyrosol was investigated from 10 breeds of olive leaves stored over 3 years.Results showed that:content of hydroxytyrosol in a growing year has one high peak period namely May and Jun.,and one low trough period,namely Nov.and Dec..Huge differences existed among different breeds.The content of hydroxytyrosol of 6 years age trees is higher than that of 18 years age.Erzhi No.8 olive leaves of 6 years age in May have the highest hydroxytyrosol content of 0.768 %,in contrary,6 years age Jiufeng No.6 olive leaves in Dec.have the lowest hydroxytyrosol content of 0.058 %.In leaves from 10 breeds of over 18 years age stored over 3 years,the content of oleuropein is greatly reduced,while the content of hydroxytyrosol is doubled.It means that a lot of oleuropein was degraded in hydroxytyrosol during the storage period.
【Fund】: 中国林科院林业新技术所中央级公益性科研院所基本科研业务费专项基金(CAFINT2008C04 CAFINT2010K05);; 农业科技成果转化资金项目(2010GB24320626)
【CateGory Index】: S565.9
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Chinese Journal Full-text Database 1 Hits
1 WANG Cheng-zhang1,GAO Cai-xia1,YE Jian-zhong1,CHEN Xi-juan1,JIANG Wen-ying2(1.Institute of Chemical Industry of Forest Products,CAF;Key and Open Lab.on Forest Chemical Engineering,SAF,Nanjing 210042,China; 2.Gansu Academy of Forestry,Lanzhou 730000,China);Study on Seasonal Variation of Oleuropein Content in Olive Leaves by HPLC[J];Chemistry and Industry of Forest Products;2008-06
Chinese Journal Full-text Database 2 Hits
1 XU Yuan-jun,LUO Li-ping,LI Yan,CHEN Bin,FU Yu-xin,GAO Yin-yu(College of Life Sciences and Food Engineering,Nanchang University,Nanchang 330031,China);Analyses on Chemical Compositions of Ethanolic Extractives of Propolis Collected from Two Regions in China by HPLC[J];Chemistry and Industry of Forest Products;2010-02
2 LI Chen1,2,ZHENG Yuan-yuan1,3,HUANG Xin-yi1,WANG Xiao-fei1,DI Duo-long1(1.Key Laboratory of Chemistry of Northwestern Plant Resources & Key Laboratory for Natural Medicine of Gansu Province,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou730000,China;2.Instrumental Analysis & Research Center,School of Applied Physics & Material Engineering,Wu Yi University,Jiangmen529020,China;3.Pharmaceutical College,Lanzhou University,Lanzhou730000,China);Study on the Content Determination of Oleuropein in Olea europaea L. Leaves by Substraction of UV-Visible Spectroscopy[J];Journal of Instrumental Analysis;2011-03
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 WANG Cheng-zhang(Institute of Chemical Industry of Forestry,CAF,Nanjing 210042,China);MANUFACTURING TECHNIQUE OF OLIVE OIL IN GREECE[J];Journal of Chemical Industry of Forest Products(Bimonthly);2004-01
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