摘要
针对广西新种香花油茶以及其他几种油茶的碘值、皂化值、脂肪酸组成、甘三酯组成进行了测定和分析比较。测得14种样品的油脂酸价0.38~1.47 mg/g,过氧化值2.15~4.56mmol/kg,碘值79.39~85.86g/100g皂化值,187.97~196.37 mg/g,其中香花油茶的酸价(0.42 mg/g)和碘值(2.98mmol/kg)均达到一级茶油标准。测出13种甘三脂,脂肪酸含量为:油酸77%~85%,棕榈酸6%~11%,亚油酸3%~11%,硬脂酸2%~4%,亚麻酸0.5%~0.8%。通过统计学分析数据发现:香花油茶均能表现出较好的聚类,与其他物种油茶存在差异。因此香花油茶油脂的品质特征与比较油样有较大的差异。
Camellia osmantha is a new species found in Guangxi Province.In this study the oil quality was measured compared with other camellia species in respect of iodine value,saponification value,fatty acid,triglyceride composition and other attributes.Acid value,peroxide value,iodine value and saponification value of tested samples ranged as 0.38~1.47 mg/g,2.15~4.56 mmol/kg,79.39~85.86 g/100 g and 187.97~196.37 mg/g,respectively.The acid value and iodine value of C.osmantha were 0.42 mg/g and2.98 mmol/kg that reached Grand one of Oil-tea camellia seed oil standard.Thirteen kinds of triglycerides were detected and the fatty acid contents were as followed：C18：1,77% ~85%;C18：0,6% ~11%;C18：1,3%~11%;C16：0,2%~4%;C18：2,0.5%~0.8%.It was found that C.osmantha could be a good clustering and quite different compared with other similar species through statistics analysis.
作者
陈柏林
钟海雁
黎贵卿
朱晓阳
龙奇志
CHEN Bo-lin;ZHONG Hai-yan;LI Gui-qing;ZHU Xiao-yang;LONG Qi-zhi(Faculty of Food Science and Engineering, Central South University of Foresty and Technology, Changsha, Hunan 410004, China;Guangxi Key Laboratory of Special Mon-wood Forest Cultivation and Utilization, Nanning, Guangxi 530002, China;Guangxi Forestry Research Institute, Nanning, Guangxi 530002, China)
出处
《食品与机械》
CSCD
北大核心
2017年第9期47-52,共6页
Food and Machinery
基金
广西特色经济林培育与利用重点实验室开放基金(编号:15-B-05-01)
关键词
油茶
物种
品质特征
聚类分析
主成分分析
Camellia
species
oil quality
cluster analysis
principal component analysis
