THE CONFERENCE PROCEEDINGS - IFEAT

output of anethole is calculated to be about 1900 tons, then adding the output of Vietnam of nearly 400tons, the total output of anethole and anise oil is over 3,000 tons.CST anetholeWith the emission of greenhouse gases increasing ceaselessly, the earth is getting warmer and warmer,causing the glaciers at the south and north poles to thaw. So the voices calling for protection of forests,planting trees and reducing forest resource consumption are louder and louder. Moreover, thepaperless office is a trend coming from the development of the internet. At the same time, more andmore countries are initiating regeneration and recycling of resources.As papermaking develops all over the world, the source of chemical pulp is gradually changing fromconiferous forests in frigid zones to rapidly growing broad-leaved forests from subtropical and tropicalregions. The centre of papermaking is gradually switching from North America and northern Europeto Central and South America (Brazil and Chile), Asia and the Pacific area (Indonesia) near theequator. Although production of pulp worldwide is relatively stable now, at about 200 million tons,and rosin output does not change, at about 1.1 to 1.2 million tons, the output of sulphate pulp fromconiferous forests is decreasing slowly, so CST yields, a by-product of papermaking, also decrease.From the data in Table 5, world production of turpentineand CST peaked in 1994 at 311,000 tons and 223,000 tonsrespectively. In recent years, world total production ofturpentine has been very stable, at about 250,000 tons, inwhich gum turpentine (GT) is around 100,000 tons and CSTdecreased to about 150,000 tons. CST is down about onethird. So anethole from CST dropped more than 30% withit.World production of turpentine 1989~2010 1989 1993 1994 1996 1997 19982005 2006 2009 2010 Year World total output GT output CST outputFigure 4 World output of turpentine 1989 - 2010Table 5 World production of turpentine 1989-2011 (10 3 tons)Items 1989 1993 1994 1996 1997 1998 2005 2006 2009 2010World totalproduction282 296 311 249 269 262 254 256 252 250GT production 87 88 88 91 105 94 92 98 103 102CST production 195 208 223 158 164 168 162 158 149 148From the quantity of CST now, the output of CST anethole is estimated to be about 1500~2300 tons.According to the analysis of CST development, its gross output is limited and is descendingconstantly, though slowly, and this will intensify the supply pressures on anethole. But this situation isa good opportunity for synthetic anethole, which can develop rapidly and gain a higher and highermarket share in these conditions with its inborn advantages.Synthetic anetholeWith the effects of weather and production costs, the output and price of natural anethole fluctuatesmore. The gross production of CST anethole decreases by degrees. But the overall trend of price anddemand for anethole is increasing gradually, with its uses broadening constantly. The supply of109