摘要
将从于都具收集到的光皮树干果压榨出毛油后,通过工厂化精炼,最终得到光皮树精炼油,并对其脂肪酸成分以及理化进行分析。结果表明,光皮树油最主要的3种脂肪酸为亚油酸(34.69%)、油酸(34.47%)、棕榈酸(22.37%)。对光皮树毛油与精炼油比较发现,毛油颜色深(黄77,红12,蓝8.7),高酸值(15.3mg KOH/g)和高过氧化值(76.9meq/kg),精炼后得到很大程度改善;一些营养成分(碳水化合物、水分、β-胡萝卜素、VE、尼克酸、硫胺素)和微量元素(钾、钠、镁、磷)在毛油中均有存在,经精炼后,碳水化合物、水分、β-胡萝卜素、钾、镁、磷含量显著下降,V E含量变化不大,尼克酸、硫胺素和钾含量均低于检测下限。
Crude oil was squeezed from Swida wilsoniana fruits grown in Yudu county,Jiangxi province and refined.The fatty acid composition and physicochemical properties of refined oil were analyzed.The most predominant fatty acids in Swida wilsoniana fruit oil were linoleic acid（34.69%）,oleic acid（34.47%） and plamtic acid（22.37%）.Crude oil had a very dark color（77Y＋12R＋8.7B）,high acid value（15.3 mg KOH/g） and high peroxide value（76.9 meq/kg）,but it was greatly improved after refining.Several nutrients（carbohydrates,water,β-carotene,tocopherols,nicotinic acid and thiamine） and minerals（potassium,sodium,magnesium and phosphorus） were detected in crude oil.The refining process could result in significant reduction in the contents of carbohydrates,water,β-carotene,sodium,magnesium and phosphorus although the content of vitamin E did not exhibit an obvious change.Moreover,nicotinic acid,thiamine and potassium were undetectable in refined oil.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第8期163-166,共4页
Food Science
基金
国家林业局引进国际先进林业科学技术项目(2010-4-09)
江西省科技厅社发重点项目(2008AE02100)
关键词
光皮树油
脂肪酸
油脂精炼
营养成分
微量元素
Swida wilsoniana fruit oil
fatty acid
oil refining
nutrients
minerals
