There is large of essential oil in orange peel. Essential oil contains 90% of Limonene, which is a kind of widely used natural perfume. Although Limonene can be extracted in many ways, organic solvent...太谢谢你了！请问这应该没有语法错误吧，因为这是论文的摘要，所以马虎不得，谢谢.........应该没有吧，因为是拿word做的，有纠错功能~不过也不是百分百确定~