为探究3种不同凝胶剂体系制备的核桃油基油凝胶的差异性,同时研究冷却温度对油凝胶结构特性的影响。使用单硬脂酸甘油酯、谷甾醇/谷维素、谷甾醇/卵磷脂3种凝胶剂制备油凝胶,测定其质构特性、流变性、持油性、化学键的相互作用以及色度;设置不同冷却温度(-80、-20、4、25 ℃)的油凝胶实验组,测定样品结构性质。结果显示,3种油凝胶体系内部分子间作用力不同,色度及各种结构性质之间差异显著,冷却温度为4 ℃时,油凝胶的持油率最大为(81.46±0.87)%,硬度较为适中为(46.5±5.1) g。说明核桃油凝胶可满足塑性脂肪涂抹性的要求,控制结晶温度可改变油凝胶的结构性质。
The differences of walnut oil-based oleogels prepared by three different gel systems were investigated. At the same time, the effects of cooling temperature on the structural properties of oleogels were also studied. The walnut oil-based oleogels were prepared by using glyceryl monostearate, sitosterol/oryzanol and sitosterol/lecithin,texture properties, rheology, oil holding, chemical bond interactions, and chromaticity of the samples were determined. The oleogels experimental group with different cooling temperatures (-80, -20, 4, 25 ℃) were set and the structural properties of the samples were determined. Results showed that the intermolecular forces in the three oleogels systems were different, and the differences in chromaticity and various structural properties were significant. When the cooling temperature was 4 ℃, the oleogels has a maximum oil holding ratio of 81.46%±0.87% and moderate hardness of (46.5±5.1) g. In summary, walnut oleogels can meet the requirements of plastic fat spread ability and controlling the crystallization temperature can change the structural properties of the oleogels.
[1] 管伟举, 陈钊, 谷克仁. 核桃油研究进展[J]. 粮食与油脂, 2010(5): 39-41.
[2] 赵声兰, 陈朝银, 葛锋, 等. 核桃油功效成分研究进展[J]. 云南中医学院学报, 2010(6): 71-74.
[3] 代增英, 高克栋, 冯建岭, 等. 核桃油的研究进展[J]. 江苏调味副食品, 2014(1): 6-8.
[4] 王丁丁, 赵见军, 张润光, 等. 核桃油研究进展[J]. 食品工业科技, 2013,34(16): 383-387.
[5] 钟金锋, 覃小丽, 刘雄. 凝胶油及其在食品工业中的应用研究进展[J]. 食品科学, 2015, 36(3): 272-279.
[6] HAN L J, LI L, ZHAO L, et al. Rheological properties of organogels developed by sitosterol and lecithin[J]. Food Research International,2013,53(1):42-48.
[7] 曹振宇, 刘泽龙, 张慧娟,等. 食用植物油脂凝胶化技术研究进展[J]. 中国油脂, 2019, 44(8): 57-64.
[8] HUGHES N E, MARANGONI A G, WRIGHT A J, et al. Potential food applications of edible oil organogels[J]. Trends in Food Science & Technology, 2009, 20(10): 470-480.
[9] JIN F, XU J, LIU X R, et al. Roasted tree peony (Paeonia ostii) seed oil: Benzoic acid levels and physicochemical characteristics[J]. International Journal of Food Properties, 2019, 22(1): 499-510.
[10] MARTINS A J, CERQUEIRA M A, PASTRANA L M, et al. Sterol-based oleogels' characterization envisioning food applications[J]. Journal of the Science of Food and Agriculture, 2019, 99(7): 3 318-3 325.
[11] YI B R, KIM M J, LEE S Y, et al. Physicochemical properties and oxidative stability of oleogels made of carnauba wax with canola oil or beeswax with grapeseed oil [J]. Food Science and Biotechnology, 2017, 26(1): 79-87.
[12] 南阳. 荷载VC油脂凝胶的制备及其在人造奶油中的应用研究[D]. 广州: 华南理工大学, 2017.
[13] 杨舒. β-谷甾醇和硬脂酸油脂凝胶的性质及作用机理研究[D]. 沈阳: 沈阳农业大学, 2018.
[14] 万文博. 荷载姜黄素油脂凝胶的制备及性能研究[D]. 广州: 华南理工大学, 2016.
[15] 侯万国, 孙德军, 张春光. 应用胶体化学[M]. 北京: 科学出版社, 1998:51.
[16] 朱小勇, 孟宗, 李进伟, 等. 凝胶剂种类对凝胶油物性及结晶形态的影响[J]. 中国粮油学报, 2013, 28(10): 37-43.
[17] WINTER H H, CHAMBON F. Analysis of linear viscoelasticity of a crosslinking polymer at the gel point[J]. Journal of Rheolog, 1986, 30(2): 367-382.
[18] MENG Z, GUO Y, WANG Y, et al. Oleogels from sodium stearoyl lactylate-based lamellar crystals: structural characterization and bread application[J]. Food Chemistry, 2019(192): 134-142.
[19] BEHERA B, SAGIRI S S, PAL K, et al. Modulating the physical properties of sunflower oil and sorbitan monopalmitate-based organogels[J]. Journal of Applied Polymer Science, 2013, 127(6): 4 910-4 917.
[20] 刘盼盼, 许苗苗, 祁文静, 等. 不同单硬脂酸甘油酯含量的大豆油油凝胶性能和微观结构分析[J]. 南京农业大学学报, 2018, 41(3): 547-554.
[21] 殷俊俊, 马传国, 王伟, 等. 利用γ-谷维素与β-谷甾醇制备葵花油凝胶研究[J].粮食与油脂, 2015,28(1): 39-42.
