耐盐碱植物牛角瓜产能成分分析

Energy-produced Components in Calotropis gigantea

对海南产耐盐碱植物牛角瓜(Calotropis gigantean)产能成分进行了较系统的研究.采用气相色谱-质谱联用仪(GC-MS)研究结果表明,牛角瓜汁液中含有C7～C44的烷烃,其中C21烷烃含量最高,占总烷烃的52.98%左右,C7～C17的烷烃占10.28%左右,C29～C44的烷烃占37.45%左右,汁液中总烷烃含量为0.02%～0.03%,整株中总烷烃含量为0.01%～0.015%.按煤炭样品的国标分析检测方法检测牛角瓜灰分为8.10%,挥发分含量为68.90%,热值为17.93MJ/kg,碳氢含量总和达到49.51%,高于已报道的印度白花牛角瓜的46.22%,硫含量仅为0.55%,综纤维素的含量以茎中最高,皮中最低,牛角瓜皮含油脂量最髙,在全株中多糖和蛋白质含量都较高,而在汁液中则含量较低.

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.