THE CONFERENCE PROCEEDINGS - IFEAT

It is also highlighted in Diag. 5 thatgum rosin production has beendeveloping rapidly since 2000 inYunnan province, which has takenover the leading position fromGuangdong and Guangxi and hasacted as an active and vital player inChina GR/GT industry. A trend hasbeen emerging more and moreclearly for production to shift fromthe major crop regions in the moredeveloped provinces to moreremote and less developed regions,to take advantage of lower wagerates.China GT Production in each Region(!!!?.2(&!"!##(%!"!##($!"!##-./012#(!!"!##345678#9678:;6#'!"!##-8:#&!"!##=478:;6#%!"!##$!"!##!"!##$!!!# $!!(# $!!$# $!!)# $!!%# $!!*# $!!&# $!!+# $!!'# $!!,# $!(!# $!((#Source: CFNPIA Gum Rosin Annual ConferenceDiag. 5 GT Production in each RegionChinese GT QualityGum turpentine derived from different pine species has different qualities, but what most concerns theusers is the pinene content (Table 1). Pinus Kesiya and Pinus Elliottii are preferred by beta pineneroute aroma chemical producers because of their high content of beta pinene.SpeciesPinus MassonianaLocationsGuangdongGuangxiFujianApproximate pinene content in GTbeta pinene alpha pinene Total3-8% 80-85% 85-90%Pinus Yunnanensis Yunnan 10-20% 70-80% 88-92%Pinus Kesiya Yunnan 20-30% 60-70% 88-92%Pinus ElliottiiJiangxi, Guangdong,Guangxi, FujianTable 1: Quality of Chinese Gum Turpentine35-38% 50-55% 85-90%94