University Chemistry ›› 2020, Vol. 35 ›› Issue (11): 166-169.doi: 10.3866/PKU.DXHX202009053

Special Issue:

• Science Education • Previous Articles     Next Articles

Falling "Orange" is Not Heartless: Things about Orange Peel

Ming Chen1, Haohui Xu1, Mingying Xi1, Yuan Liu2,*()   

  1. 1 College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
    2 Experiment Teaching Center of Basic Chemistry, Sichuan University, Chengdu 610207, P. R. China
  • Received:2020-09-21 Accepted:2020-10-07 Published:2020-10-19
  • Contact: Yuan Liu


Since the widespread plantation of oranges and the rapid development of the orange juice processing industry, orange peel has been one of the main wastes in today's food industry. Orange peel is rich in high value-added compounds. Recycling of these substances can reduce the environmental pollution and resource waste effectively. It can also bring quantities of products with economic and social value. To help readers deepen their understanding of orange peel further in reading, in this review paper, we introduce the composition, properties, usage and future directions of the essential oil, pectin, pigment, hesperidin and dietary fiber in orange peel.

Key words: Orange peel, Essential oil, Pectin, Pigment, Hesperidin, Dietary fiber