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当前位置: 首页 > 文章 > 异硫氰酸苄酯纳米乳液射流空化制备与冻融稳定性研究 农业机械学报 2019 (1) 337-342,351
Position: Home > Articles > 异硫氰酸苄酯纳米乳液射流空化制备与冻融稳定性研究 Transactions of the Chinese Society for Agricultural Machinery 2019 (1) 337-342,351

异硫氰酸苄酯纳米乳液射流空化制备与冻融稳定性研究

作  者：
田甜;周艳;高悦;李杨;王中江;李良
单  位：
东北农业大学食品学院
关键词：
大豆蛋白;磷脂酰胆碱;异硫氰酸苄酯;射流空化;纳米乳液;冻融稳定性
摘  要：
利用大豆分离蛋白-磷脂酰胆碱作为复合乳化剂包埋异硫氰酸苄酯(BITC),通过射流空化机制备成纳米乳液以提高其冻融稳定性.以出油率和乳层析指数为稳定性指标,研究了射流空化压力及冻融循环次数对纳米乳液冻融稳定性的影响;通过乳液冻融过程热特性分析,研究了不同射流空化压力下改性大豆分离蛋白-磷脂作为乳化剂时冻融过程中乳液结晶及融化的热行为.结果发现:当空化压力为0. 8 MPa时,所制得的BITC纳米乳液乳层析指数比未处理样品降低了51. 39%,出油率较未处理样品下降83. 64%,平均粒径为(252±6. 2) nm,PDI为0. 114±0. 034,ζ-电位为(-27. 2±0. 6) m V;通过光学显微镜观测到,BITC被包埋于复合乳化剂中,且均匀分布在乳液体系,处于相对稳定状态;样品热特性的差异对比表明,射流空化改性蛋白-磷脂能显著增加乳液冻融稳定性.
作  者：
HAO Shurong;WANG Zixin;PAN Yongchun;WU Yunyu;ZHENG Chengxin;CHEN Wenmeng;College of Agricultural Engineering,Hohai University;Jiangsu Hydraulic Research Institute;
关键词：
super rice;;irrigation and drainage mode;;total phosphorus;;soil leakage fluid;;migration patterns
摘  要：
Taking super rice as test material,the randomized block design method and barrel experiment were conducted to investigate the effects of four treatments with migration of total phosphorus( TP) in underground drainage and soil leakage loss risks and movement of phosphorus and rice yield. Four treatments were: frequent shallow irrigation( FSI),controlled irrigation( CI) wet-shallow irrigation( WSI) and drought planting with straw mulching( DPS). The results showed that compared with FSI and WSI,CI and DPS could significantly reduce irrigation amount and irrigation frequency,the concentration of TP in underground drainage and underground drainage,and effectively promote water saving and emission reduction. Under different irrigation and drainage modes,there were many fluctuations in the whole growth period,and the maximum concentration of TP in underground drainage was 0. 450 mg/L.The TP concentration in soil seepage at different depths was different in different irrigation and drainage modes. Except for the late tillering period,the TP concentration was the highest on the surface and decreased with the increase of soil profile depth. The TP concentration of soil seepage in WSI and DPS was higher than that in FSI and CI. Compared with the FSI,the yield of CI was increased by 10. 45%and the DPS was decreased by 14. 69%. The productivity of irrigation water in two years of CI and DPS was significantly higher than that of WSI and FSI. Comprehensively considering the irrigation and drainage,irrigation frequency and phosphorus loss,yield and irrigation water productivity,CI was the best mode for water saving,labor saving,emission reduction and high yield.

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