海南尖峰岭油楠树脂油的主要理化特性

以海南尖峰岭油楠为研究对象,通过树干基部钻孔每个月定期收集树脂油,测定6份不同油样的16项理化指标,综合评价油楠树脂油不同样品间理化特性的变异及其关联。结果表明:树脂油的凝点、闭口闪点、馏程、总热值、净热值、碘值、硫含量和铜片腐蚀等理化指标比较稳定,受产油单株影响较弱,除铜片腐蚀为Ia外,其他7个指标变化范围分别为-27～-36℃,114～124℃,248～345℃,42～43MJ·kg-1,40～41MJ·kg-1,118～131gI2·(100g)-1,0.0005%～0.0093%;树脂油密度、运动黏度、冷滤点、水分、灰分、机械杂质、酸值、10%蒸余物残炭和十六烷指数在不同样品间产生显著变异,并与产油单株紧密关联,其变化幅度为812～957kg·m-3,24～48mm2·s-1,12～28℃,0.03%～2.74%,0.008%～0.055%,0～0.060%,0.35～2.23mgKOH·g-1,0.42%～5.46%和25～64;10%蒸余物残炭与闪点存在显著负相关,与碘值、灰分和冷滤点存在显著正相关,密度与运动粘度和机械杂质呈显著正相关、与十六烷指数呈显著负相关,这表明10%蒸余物残炭和密度是树脂...

Physical and Chemical Properties of the Oleoresin of Sindora glabra in Jianfengling National Nature Forest Reserve,Hainan island of China

Sindora glabra is an indigenous species in Hainan island,characterized by its exudation of oleoresin.To provide the techniques and references for exploring the oleoresin utilization for fuel oil,six oleoresin samples were extracted during Sept to Dec.in 2009 by perforating the trunk of S.glabra from three main populations.Physical and chemical properties of the oleoresin and their relationships were analyzed with 16 measured indicators.The result showed that eight indicators,such as solidifying point,flash ...