Journal of
Medicinal Plants Research

  • Abbreviation: J. Med. Plants Res.
  • Language: English
  • ISSN: 1996-0875
  • DOI: 10.5897/JMPR
  • Start Year: 2007
  • Published Articles: 3834

Full Length Research Paper

Oleanolic and ursolic acid in the fruit of Eriobotrya japonica Lindl.

Chun-Hua Zhou1, 2, Xian Li2*, Wang-Shu Zhang2, Chong-De Sun2 and Kun-Song Chen2
1College of Horticulture and Plant Protection, Yangzhou University, Yangzhou 225009, PR China. 2Laboratory of Fruit Quality Biology, College of Agriculture and Biotechnology, Zhejiang University/The Ministry of Agriculture’s Laboratory of Horticultural Plant Growth and Quality Regulation, Hangzhou 310029, PR China.
Email: [email protected]

  •  Accepted: 02 February 2011
  •  Published: 04 May 2011


High performance liquid chromatography (HPLC) method was applied to determine the content of oleanolic acid (OA) and ursolic acid (UA) in different tissues of ‘Ruantiaobaisha’ and ‘Dayeyangdun’ loquat (Eriobotrya japonica Lindl.) fruits in this research. The results demonstrated that peel contained higher OA and UA contents, while flesh and kernel contained very lower amounts of OA and UA. On the basis of above results, the OA and UA contents in the peel of different developmental stages and different cultivars of loquat fruits were analyzed and compared. It is found that OA and UA contents in the peel varied with different developmental stages and cultivars. The OA and UA content in the peel of ripe fruit of different cultivars were in the range of 0.59-1.68 and 2.82-8.20 mg/g DW, respectively. These results can provide a theoretical basis for the comprehensive utilization of loquat fruit in the future.


Key wordsEriobotrya japonica, fruit, oleanolic acid, ursolic acid.