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Position: Home > Articles > Effect of Surfactin as Surfactant on Physical and Oxidation Stability of O/W DHA-Rich Algae Oil Emulsion FOOD SCIENCE 2017,38 (21) 146-151

Surfactin作为表面活性剂对O/W型藻油DHA乳状液物理和氧化稳定性的影响

作  者:
何镇宏;赵海珍;陆兆新
单  位:
南京农业大学食品科技学院
关键词:
Surfactin;藻油DHA乳状液;物理稳定性;氧化稳定性
摘  要:
以Surfactin作为表面活性剂制备藻油二十二碳六烯酸(docosahexaenoic acid,DHA)乳状液并研究其稳定性。研究发现,水相为质量分数0.8%的Surfactin溶液,在不添加助表面活性剂和其他添加剂的条件下,制备水包油型藻油DHA乳状液,在4℃和37℃条件下保存相比其他表面活性剂具有良好的物理稳定性,在浊度、粒径、Zeta电位和流变学角度与Tween-80-丙三醇等表面活性剂制备的藻油DHA乳状液相比均有显著差异(P<0.05),Surfactin藻油DHA乳状液在各方面均优于其他表面活性剂的藻油DHA乳状液。在高温处理和常温贮存过程中,Surfactin藻油DHA乳状液的氧化稳定性也十分优良,在37℃贮存60 d乳状液过氧化值始终处于较低水平,仅为(1.635±0.202)meq/kg。
译  名:
Effect of Surfactin as Surfactant on Physical and Oxidation Stability of O/W DHA-Rich Algae Oil Emulsion
作  者:
HE Zhenhong;ZHAO Haizhen;LU Zhaoxin;College of Food Science and Technology,Nanjing Agricultural University;
单  位:
College of Food Science and Technology,Nanjing Agricultural University
关键词:
surfactin;;DHA-rich algae oil emulsion;;physical stability;;oxidation stability
摘  要:
Surfactin was used as a surfactant to form docosahexaenoic acid(DHA)-rich algae oil emulsion.It was found that oil-in-water(O/W) DHA-rich algae oil emulsion without added cosurfactant or any other additive where the aqueous phase was 0.8% surfactin had better physical stability at 4 and 37 ℃ than emulsions formed with other surfactants.DHA-rich algae oil emulsion with surfactin had significant advantages(P < 0.05) in turbidity,particle size,Zeta potential,and rheological properties than those with Tween-80-glycerol or other food-grade surfactants.Oxidation stability of DHA-rich algae oil emulsion with surfactin was also excellent after treatment at high temperature or during storage time at room temperature.The peroxide value remained at low level,which was(1.635 ± 0.202) meq/kg after storage at 37 ℃ for 60 days.

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