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乳化油 - Open Access .click
Results 1 to 10 of about 1,869 (85)

乳化食品中油脂氧化分析及其货架期 评价方法的研究进展Advance in oil oxidation analysis and shelf-life evaluation of emulsified foods

open access: yesZhongguo youzhi, 2022
油脂氧化是导致乳化食品变质的主要原因。油脂中的不饱和脂肪酸发生氧化,不仅会降低乳化食品的营养价值,还会产生不良风味、有害成分,进而影响乳化食品货架期和食用安全。相对于纯油体系,以乳化形式存在的油脂在高油-水界面比下极易发生氧化,缩短乳化食品的货架期。为明确乳化食品中油脂氧化分析以及其货架期评价方法,在介绍乳化食品中油脂氧化的基本过程的基础上,综述了乳化食品中油脂氧化分析方法(过氧化值、共轭二烯值、硫代巴比妥酸值、茴香胺值、挥发性物质含量)以及货架期的评价方法 ...
李潇潇,陈小威,马传国 LI Xiaoxiao, CHEN Xiaowei, MA Chuanguo
doaj   +1 more source

小桐子油乳状液制备的工艺优化及复配乳化剂 对其杀虫活性的影响Optimization of preparation of Jatropha curcas L. oil emulsion and effect of compound emulsifier on its insecticidal activity

open access: yesZhongguo youzhi, 2022
小桐子油不溶于水,若将小桐子油制备成杀虫剂,必须先将小桐子油乳化,制备稳定的小桐子油乳状液。研究复配乳化剂、乳化温度、乳化方式及增溶水量对小桐子油乳状液稳定时间的影响,并研究复配乳化剂对小桐子油乳状液杀虫活性的影响。结果表明,小桐子油乳状液制备的最佳工艺条件为复配乳化剂Tween-20/Span-60(0.12/0.88),乳化温度20~30 ℃,乳化方式为先将复配乳化剂加入油相,再将水加入油相后搅拌均匀,增溶水量27.5%。在最佳工艺条件下,小桐子油乳状液的稳定时间为55 d ...
朱君丽,李育川,余开聪,穆爱秋,李子航 ZHU Junli, LI Yuchuan,YU Kaicong, MU Aiqiu, LI Zihang
doaj   +1 more source

D-最优混料设计优化速冻专用油脂乳化剂配方Optimization of emulsifier formula of fast-frozen special fat by D-optimum mixture design

open access: yesZhongguo youzhi, 2023
为解决速冻食品易开裂的问题,对速冻专用油脂乳化剂配方进行设计优化。首先以自制酯交换油脂为基料油,以吸水性和乳化稳定性为指标,对6种常用的亲油性乳化剂进行筛选,并采用D-最优混料设计确定最佳乳化剂配方,然后用该乳化剂配方制备速冻专用油脂,并将自制速冻专用油脂和两种市售速冻专用油脂制作速冻汤圆作应用对比试验。结果表明:以酯交换油脂为基料油的速冻专用油脂最佳乳化剂配方为硬脂酰乳酸钙添加量34.4%、单硬脂酸甘油酯添加量338%、大豆卵磷脂添加量31.8%,在此条件下复合乳化剂的吸水性为25.1 mL/10 ...
朱利萍1,孙聪1,2,李开放2,张顺昌2,梁少华1,杨国龙1,刘伟1 ZHU Liping1, SUN Cong1,2, LI Kaifang2, ZHANG Shunchang2, LIANG Shaohua1, YANG Guolong1, LIU Wei1
doaj   +1 more source

Functional Properties of Polymerized Whey Protein after Encapsulation of Oils(聚合乳清蛋白包埋油脂功能特性的研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2013
Functional properties of polymerized whey protein after encapsulation of oils were studied. Results indicated that emulsion activity and emulsion stability of encapsulated fish oil were better than evening primrose oil -P005- higher than that of ...
ZHANG Tie-hua(张铁华)   +7 more
doaj   +1 more source

渤海油田老化油处理工艺研究

open access: yesGongye shui chuli, 2018
老化油是含杂质高且十分稳定的乳化液体系,渤海区域个别油田存在的老化油累积问题亟待解决。对比了热化学破乳工艺、高频电脱破乳工艺以及离心分离破乳工艺处理老化油的效果。热化学破乳及电脱破乳对老化油的处理效果不佳,弊端明显。使用离心分离设备处理老化油,设备简单,现场处理效果理想,运行稳定,在现场取得了良好的应用效果。
杨秘   +4 more
doaj   +2 more sources

疏水改性钢网对模拟化学驱油田污水破乳除油研究

open access: yesGongye shui chuli, 2021
以聚丙烯(PP)溶液涂覆不锈钢网进行表面疏水改性,优选涂覆液PP质量浓度为40 g/L,钢网目数为350目,改性后钢网表面水接触角153°。研究了改性钢网对3种模拟化学驱油田污水的破乳除油效果,结果表明,改性钢网对3种污水(表活剂驱污水、聚驱污水和二元驱污水)均具有聚结破乳效果,其中,对表活剂驱污水的破乳除油效果最好,最佳搅拌条件下除油率为85.4%;油珠粒径显著增大,基本从乳化油转化为分散油。
刘立新   +6 more
doaj   +2 more sources

乳化剂类型对水包油型亚麻籽油乳液 物化稳定性的影响Effects of emulsifier type on physicochemical stability of flaxseed oil-in-water emulsions

open access: yesZhongguo youzhi
旨在为高稳定性水包油型亚麻籽油乳液的制备提供参考,以亚麻籽油为油相,采用不同质量分数的油相及3种不同的乳化剂〔吐温60(Tween 60)、卵磷脂(PC)及大豆分离蛋白(SPI)〕,应用高压均质法在60 MPa压力下均质3次制备水包油型亚麻籽油乳液,通过测定乳液的粒径、界面面积和Zeta电位变化,考察乳化剂类型和油相质量分数对乳液物理稳定性的影响,通过测定乳液在37 ℃储藏不同时间的外观、微观结构、粒径、Zeta电位、过氧化值(POV)、硫代巴比妥酸值(TBARS)、氧化产物、主要脂肪酸组成的变化 ...
黄雪艳1,杨国龙1,王雅娟1,杨瑞楠1,张泽楠1,刘君1,2 HUANG Xueyan1, YANG Guolong1, WANG Yajuan1, YANG Ruinan1, ZHANG Zenan1, LIU Jun 1,2
doaj   +1 more source

SAGD采油污水乳化特性及其破乳-絮凝试验研究

open access: yesGongye shui chuli, 2015
为了解决国内某油田SAGD采油污水油水分离的难题,对SAGD采油污水的水质特性和乳化特性进行研究,针对该污水开发并筛选出最优的高效破乳剂,考察了投加量对污水破乳效果的影响,并进行破乳-絮凝复配试验。试验结果表明:该油田SAGD采油污水的油、悬浮物、硫、Fe2+含量均较高,乳化程度严重且具有极强的乳化稳定性,油水分离困难;当破乳温度为65℃、停留时间为2 h时,投加500 mg/L无机药剂2#时除油率为87.7%,在破乳后的水样中投加2.5 mg/L的PAM6#,油可降至27.0 mg/L,悬浮物降至9 ...
翁艺斌   +5 more
doaj   +2 more sources

乳清分离蛋白-黄原胶复合乳化剂制备南瓜籽油 O/W型乳液及其稳定性Preparation of pumpkin seed oil O/W emulsion by whey protein isolate-xanthan gum compound emulsifier and its stability

open access: yesZhongguo youzhi, 2022
为提高南瓜籽油(PSO)的稳定性,以及提高由单一乳清分离蛋白(WPI)作为乳化剂制备的水包油(O/W)型乳液的稳定性,制备了黄原胶(XG)与乳清分离蛋白协同稳定的南瓜籽油O/W型乳液,探究了黄原胶添加量及添加顺序对乳液性质及其稳定性的影响。结果表明:黄原胶质量浓度为2.0 mg/mL 时,乳液平均粒径最小,为(10.53±0.06)μm,而ζ-电位绝对值最大,为(37.92±0.61)mV,乳液稳定性最好;黄原胶添加顺序不同,乳液稳定性有所差别,其中乳液WPI-PSO-XG ...
陈玲1,张立伟1,2,雷芬芬1,2,郑竟成1,何东平1,2 CHEN Ling1, ZHANG Liwei1,2, LEI Fenfen1,2, ZHENG Jingcheng1, HE Dongping1,2
doaj   +1 more source

蓬莱19-3油田酸化返排液难处理原因探究

open access: yesGongye shui chuli, 2017
针对蓬莱19-3油田酸化返排液难处理问题展开研究,实验发现,该油田酸化返排液脱水困难,油相含水率偏高,乳化状态稳定。对可能导致返排液乳化稳定的物质进行了分离并鉴定,初步确定该物质主要成分为FeS。经验证,对除去FeS后的酸化返排液破乳,油水顺利分离。据此判定,导致蓬莱19-3油田酸化返排液乳化状态稳定且油水分离困难的物质主要为FeS。
王国弘   +3 more
doaj   +2 more sources

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