油桐是信阳地区的主要经济树种之一,桐油是重要的工业原料和出口物资.桐油质量的高低,决定于油质的优劣,我们通过油质理化性质的化验,测定及其分析,可鉴别出桐油品种(类型)的好坏,以及不同的品种生长在不同的立地条件下,而导之油脂的品质有所差异,这项工作对信阳地区油桐的发展和栽培技术提供了一定的理论依据.现将化验分析结果如下: Tung oil is one of the main economic tree species in Xinyang, tung oil is an important industrial raw materials and export materials. Tung oil quality level, depending on the quality of oil, we pass oil physical and chemical properties of the test, determination and analysis, Identification of tung oil varieties (types) is good or bad, and different varieties grow in different site conditions, which led to differences in the quality of oils and fats, the work of Xinyang Tung oil field development and cultivation techniques to provide a certain Theoretical basis. Now the laboratory analysis of the results are as follows: