Energy-produced Components in Calotropis gigantea
耐盐碱植物牛角瓜产能成分分析

The energy-produced components in Calotropis gigantean, a plant growing in saline and alkaline land, have been systematically investigated. According to the results from GC-MS analysis, there are alkyl hydrocarbons from C7H16 to C44H90 in the plant juice. The content of C21H44 in the total alkyl hydrocarbons is the highest as 52.98%, the contents from C7H16 to C17H36 and from C29H60 to C44H90 are 10.28% and 37.45% respectively. The content of total alkyl hydrocarbons is 0.02% -0.03% in the juice and 0.01%-0.015% in the entire plant. Based on the national standard examination of coals, for whole plant, the results show ash content 8.12%, the volatile matter 68.82%, gross calorific value 17.93 MJ/kg, sulfur content only 0.55%, the total content of carbon and hydrogen 49.51% which is higher than that of Calotropis procera reported. In the plant, total cellulose is the highest in the stem and lowest in the bark, the saponification values of the bark is the highest, the contents ofpolysaccharide and protein are higher than those of juice.