摘要
氢化植物油以其绿色环保、可再生、燃烧时长等诸多优势在蜡烛材料方面受到越来越多的关注,作为我国五大油料之一的棉籽油(CSO)却鲜有在蜡材方面的应用研究。以棉籽油为原料,镍为催化剂,反应温度170℃,H_2压力275.8 k Pa,反应时间0.5～6 h,获得不同熔点(32.4～61.9℃)的氢化棉籽油,碘值为1.1～73.0 g/100 g。采用脉冲核磁共振仪、偏光显微镜和X-射线衍射仪对氢化棉籽油的固体脂肪含量、微观形态、晶型等理化特性进行分析。所得氢化棉籽油在微观上均呈细小针状的结构,易于包裹液油,减轻蜡材的油腻感。所得氢化棉籽油晶型以β'为主,并能保持较长时间不变,有利于延缓蜡材在储藏过程中随温度波动产生的起霜现象。氢化棉籽油良好的外观及油脂特性,使其可作为一种植物油基蜡材加以应用。并可进一步改善油脂特性,拓宽原料使用范围及进行性状的优化,获得一款较好的植物油基蜡材。
The application of hydrogenated vegetable oil on candle materials has attracted more and more attention due to its advantages of green environment protection,renewable and longer burning time than paraffin.However,cottonseed oil(CSO),one of the five major oils in China,has rarely been applied on wax materials..Hydrogenated cottonseed oil(HCSO)with different melting points(32.4-61.9℃)was prepared by using cottonseed oil as raw material,nickel as catalyst,under the conditions of reaction temperature 170℃,H2 pressure 275.8 kPa,reaction time 0.5-6 h,and iodine value 1.1-73.0 g/100 g.P-NMR,PLM and XRD analysis were applied to characterize their physical properties,such as solid fat content,microstructure and crystal form.The obtained hydrogenated cottonseed oil had a fine needle structure,which was easy to encapsulate the liquid oil and reduce the greasy of wax.The crystal form of hydrogenated cottonseed oil was beta-prime with long-time stability,which was helpful to delay the frosting phenomenon caused by temperature fluctuation during storage.Overall,HCSO was a better vegetable oil-based candle material for industrial application.The research on improving the properties of HCSO,widening the use range of raw materials and optimizing the properties of the wax should be further carried out.
作者
魏茂林
徐学兵
张虹
毕艳兰
许淑芳
WEI Maolin;XU Xuebing;ZHANG Hong;BI Yanlan;XU Shufang(School of Food Science and Technology,Henan University of Technology,Zhengzhou 450001,China;;Wilmar(Shanghai)Biotechnology R&D Center Co.,Ltd.,Shanghai 200137,China)
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2018年第5期37-42,共6页
Journal of Henan University of Technology：Natural Science Edition
关键词
氢化棉籽油
蜡烛材料
油脂特性
hydrogenated cotton seed oil
candle materials
oil characterization
作者简介
魏茂林(1992—),男,河南商丘人,硕士研究生,研究方向为油脂食品质构;通信作者:徐学兵,教授,E-mail:xuxuebing@cn.wilmar-intl.com
