Review of emulsified asphalt modification mechanisms and performance influencing factors

In recent years,with the improvement of the requirements of road performance,modified emulsified asphalts with better performance has gradually replaced the emulsified asphalt and become the primary material for road maintenance.This paper introduces the modified emulsified asphalt materials commonly used in pavement maintenance projects,definitions and modified mechanisms of polymerized styrene butadiene rubber(SBR)modified emulsified asphalt,styrene butadiene styrene block polymer(SBS)modified emulsified asphalt and waterborne epoxy resin(WER)modified emulsified asphalt are summarized.The analysis focused on comparing the effects of modifiers,preparation process,auxiliary additives,and other factors on the performance of modified emulsified asphalt.In this paper,it is considered that the greatest impact on the performance of emulsified asphalt is the modifier,emulsifier mainly affects the speed of breaking the emulsion,stabilizers on the basic performance of emulsified asphalt evaporative residue is small;and when the modifier is distributed in the asphalt in a network,the dosage at this time is the recommended optimum dosage.Finally,this study recommends that in the future,the polymer-asphalt compatibility can be improved through composite modification,chemical grafting and other methods to continue to develop broader applicability and better performance of modified emulsified asphalt.

Coconut Fiber Pyrolysis: Bio-Oil Characterization for Potential Application as an Alternative Energy Source and Production of Bio-Degradable Plastics

The current energy crisis could be alleviated by enhancing energy generation using the abundant biomass waste resources. Agricultural and forest wastes are the leading organic waste streams that can be transformed into useful alternative energy resources. Pyrolysis is one of the technologies for converting biomass into more valuable products, such as bio-oil, bio-char, and syngas. This work investigated the production of bio-oil through batch pyrolysis technology. A fixed bed pyrolyzer was designed and fabricated for bio-oil production. The major components of the system include a fixed bed reactor, a condenser, and a bio-oil collector. The reactor was heated using a cylindrical biomass external heater. The pyrolysis process was carried out in a reactor at a pressure of 1atm and a varying operating temperature of 150˚C, 250˚C, 350˚C to 450˚C for 120 minutes. The mass of 1kg of coconut fiber was used with particle sizes between 2.36 mm - 4.75 mm. The results show that the higher the temperature, the more volume of bio-oil produced, with the highest yield being 39.2%, at 450˚C with a heating rate of 10˚C/min. The Fourier transformation Infrared (FTIR) Spectroscopy analysis was used to analyze the bio-oil components. The obtained bio-oil has a pH of 2.4, a density of 1019.385 kg/m3, and a calorific value of 17.5 MJ/kg. The analysis also showed the presence of high-oxygenated compounds;carboxylic acids, phenols, alcohols, and branched oxygenated hydrocarbons as the main compounds present in the bio-oil. The results inferred that the liquid product could be bestowed as an alternative resource for polycarbonate material production.

Effect of emulsified isoflurane on apoptosis of anoxia-reoxygenation neonatal rat cardiomyocytes

Objective:To explore the effect of emulsified isoflurane(EI)on apoptosis of anoxia-reoxygenation neonatal rat cardiomyocytea and relevant protein expression.Methods:Cardiac muscle anoxiareoxygenation damage model was established with culture in vitro neonatal rat cardiomyocytes.The cardiomyocytes were divided into control group,model group,fat emulsion group and EI group.The cardiomyocytes apoptosis rates and lactic dehydrogenase(LDH),superoxide dismutase(SOD)and malondialdehyde(MDA)index standardization were detected after relevant treatment The expression of apoptosis-related proteins Bel-2,Bax and Caspase-3 were detected with Western blot approach.Results:After hypoxia/reoxygenation(H/R)model was treated by EI,the cells apoptosis rate decreased and was dramatically below the fat emulsion group(P<0.05),Cardiomyocytes biochemical index detection presented that,compared with the control group that the LDH activity and MDA content dramatically increased(P<0.05),while the SOD activity notably decreased(P<0.05);compared with the H/R group,the SOD activity of the fat emulsion group and EI group increased(P<0.05);while the LDH activity and MDA content decreased(P<0.05).And the change of the EI group was more remarkable than the fat emulsion group(P<0.05).The Western blot analysis presented that,compared with the control group,the Bcl-2 protein expression of the other groups significantly decreased(P<0.05),the expressions of Bax protein and Caspase-3protein increased significantly(P<0.05);compared with H/R group,cardiomyocytes Bc1-2protein expression of EI group increased significantly(P<0.05),the expressions of Bax protein and Caspase-3 protein decreased significantly(P<0.05),and the change of EI group was more remarkable than the fat emulsion group(P<0.05).Conclusions:EI can inhabit the apoptosis of anoxia-reoxygenation damage model cardiomyocytes,and may he related to the up-regulation of expression of Bcl-2 and down-regulation of expression of Caspase-3 protein.

The Properties of Cement Mortars Modified by Emulsified Epoxy and Micro-fine Slag

The epoxy resin polymer cement mortars with excellent performances were made up through modifying ordinary Portland cement with emulsified epoxy and micro fine slag.The microstructure of the epoxy resin polymer cement materials was studied and their hydration and hardening characteristics were discussed by means of modern analysis measures such as SEM,XRD and Hg intrusion micromeritics.The experimental results indicate that the series effects of water reducing,density,pozzolanicity,filling and solidification crosslinking through the action together with epoxy organism and micro fine slag endowed cement based materials with perfect performances.The main hydration products in the system are C S H gel and hydrated calcium aluminate.At later age,AFt can be in existence,and no Ca(OH) 2 is found.When epoxy resin is solidified,the organism is in a network structure.In the micro pore structure of hydrated cement with modified epoxy and fine slag,big harmful pores were fewer,more harmless abundant micro pores were and the possible pore radius was smaller than that of ordinary Portland cement.

Properties of Polyacrylate Latex Prepared Under Different Emulsified Systems

The polyacrylate latexes were synthesized via pre-emulsified and semi-continuous seeded emulsion polymerization technology when conventional surfactant or polymerizable surfactant was used as emulsifiers. The resultant latexes and their films were characterized with the contact angle determinator and rheometer. Effect of the polymerizable surfactant on water resistance, stability and rheology of the latex was studied. Results show that the water resistance of film is increased first then decreased with the increase of the amount of the polymerizable surfactant. There exists the optimum value of the amount of the polymerizable surfactant for the water resistance of the film. In comparison with the latex prepared with the conventional surfactant, both the mechanical stability and the freezing-thaw stability of the latex are improved when the polymerizable surfactant is used during the course of the emulsion polymerization. The resultant latex has rheological properties of pseudo-plastic fluid and belongs to non-Newtonian fluid.

An appropriate level of autophagy reduces emulsified isoflurane-induced apoptosis in fetal neural stem cells

Autophagy plays essential roles in cell survival.However,the functions and regulation of the autophagy-related proteins Atg5,LC3B,and Beclin 1 during anesthetic-induced developmental neurotoxicity remain unclear.This study aimed to understand the autophagy pathways and mechanisms that affect neurotoxicity,induced by the anesthetic emulsified isoflurane,in rat fetal neural stem cells.Fetal neural stem cells were cultured,in vitro,and neurotoxicity was induced by emulsified isoflurane treatment.The effects of pretreatment with the autophagy inhibitors 3-methyladenine and bafilomycin and the effects of transfection with small interfering RNA against ATG5(siRNA-Atg5)were observed.Cell viability was determined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay,and apoptosis was assessed using flow cytometry.Ultrastructural changes were analyzed through transmission electron microscopy.The levels of the autophagy-related proteins LC3B,Beclin 1,Atg5,and P62 and the pro-apoptosis-related protein caspase-3 were analyzed using western blot assay.The inhibition of cell proliferation and that of apoptosis rate increased after treatment with emulsified isoflurane.Autophagolysosomes,monolayer membrane formation due to lysosomal degradation,were observed.The autophagy-related proteins LC3B,Beclin 1,Atg5,and P62 and caspase-3 were upregulated.These results confirm that emulsified isoflurane can induce toxicity and autophagy in fetal neural stem cells.Pre-treatment with 3-methyladenine and bafilomycin increased the apoptosis rate in emulsified isoflurane-treated fetal neural stem cells,which indicated that the complete inhibition of autophagy does not alleviate emulsified isoflurane-induced fetal neural stem cell toxicity.Atg5 expression was decreased significantly by siRNA-Atg5 transfection,and cell proliferation was inhibited.These results verify that the Atg5 autophagy pathway can be regulated to maintain appropriate levels of autophagy,which can inhibit the neurotoxicity induced by emulsified isoflurane anesthetic in fetal neural stem cells.

Preparation and Properties of Diesel Oil Microemulsified Acid

柴油，盐酸和 emulsifier 填写的微使乳化的酸系统在这篇论文被调查。微使乳化的酸和微使乳化的系统的阶段行为的稳定性被学习。大小分布和腐蚀抑制表演也被观察。结果证明微使乳化的酸系统拥有了的柴油在不同温度下面的小尺寸和好稳定性。到 CaCl2 的忍耐到达了 80 g · L ? 1。与一样的集中盐酸解决方案相比，柴油的腐蚀抑制性能微使乳化的酸系统是显著的。

Hydrophobic and Magnetic Reduced Graphene Oxide Nanocomposite for Emulsified Oil Removal

Magnetic reduced graphene oxide(MRGO) nanocomposite was prepared by the chemical coprecipitation method and applied as adsorbent for removing emulsified oil from oily wastewater. SEM, TEM, XRD, FT-IR, VSM and other analytical methods were utilized to characterize the prepared MRGO. The adsorption performance of MRGO was evaluated under different initial adsorbate concentration, MRGO dosage, temperature, and pH value of the solution. The adsorption kinetics and isotherms were investigated. In addition, the MRGO repeatability was also tested. It was found that almost 65%of emulsified oil were removed by MRGO in the first 15 min. The MRGO adsorption capacity and efficiency for removal of adsorbate reached 335.85 mg/g and 92.52% within 60 min, respectively. The adsorption capacity reduced with an increasing MRGO dosage, while increased with the increase of emulsified oil concentration. The adsorption performance of MRGO in the alkaline environment was lower than that in the acidic environment. The adsorption data could well fit to the pseudosecondorder model. The Langmuir model could well describe the isotherm data. The MRGO adsorption capacity was still more than 236.1 mg/g at the sixth regeneration cycle.

Effect of Emulsified Diesel Fuel on Performance and Emissions Characteristics

Diesel fuel has been known as the most effective fuel but it is known as a fuel which produces harmful emissions. Later, emulsified diesel fuel was introduced as a better solution but there is no sufficient research data concerning combustion of emulsified fuel. The present work carried out a simulation of non-surfactant emulsified diesel fuel where composition of water in emulsion varied from 0% to 20% to determine the ratio of water to diesel which is more effective in reducing the exhaust emissions especially NOx. For this simulation,5% of water in diesel without surfactant was able to reduce NOx?up to 35%. It was shown that as the percentage of water increases, the power from that fuel combustion reduces.

Corn cob modified by lauric acid and ethanediol for emulsified oil adsorption

Corn cob is a naturally renewable material with developed micropore and hydrophobic characteristics, which enables it to show good oil adsorption capacity. In order to improve oil adsorption capacity, corn cob was modified with lauric acid and ethanediol. The structure of raw and modified corn cob was investigated using Fourier transform infrared(FTIR) spectroscopy, scanning electron microscopy(SEM), Brunauer-Emmett-Teller(BET) method, thermogravimetric analysis(TGA) and Ze Ta potential analyzer. The effects of p H level, adsorption time, adsorbent dosage, and initial oil concentration on oil absorbency of corn cob were studied. The results indicate that the modification significantly improved the lipophilicity of corn cob, making the modified corn cob with much better adsorption capacity on oil absorbency. Compared with raw corn cob, the maximum saturated adsorption capacity of modified corn cob is 16.52 mg/g at p H 5, and the increasing percentage is found to be 141%, which indicates that the modification causes a better adsorption capacity for oil removal. In addition, due to high oil adsorption capacity, affordable price and low secondary pollution, the modified corn cob could be considered promising alternative for the traditional oil adsorbent to clean up the emulsified oily water.

Rational design of Ni-MoO_(3–x) catalyst towards efficient hydrodeoxygenation of lignin-derived bio-oil into naphthenes

Design of a robust catalyst with high activity but the low cost for the hydrodeoxygenation(HDO) of biooils is of great importance to bring the biorefinery concept into reality.In this study,density functional theory(DFT) calculation was adopted to analyze the optimal location of Ni on MoO_(3-x) containing oxygen vacancy,and the corresponding result demonstrated that metallic Ni cluster located at the neighborhood of oxygen vacancies would significantly evoke HDO activity.Enlightened by DFT results,NiMoO_(4) was first hydrothermally synthesized and then employed to fabricate Ni-MoO_(3-x) catalyst via a low-temperature reduction,where Ni escaped from NiMoO_(4) and was reduced to its metallic state.Such an evolution of Ni species also induced the formation of oxygen vacancies around metallic Ni cluster.In the HDO of p-cresol,Ni-MoO_(3-x) exhibited high activity with a complete conversion and a methylcyclohexane selectivity of 99.4% at 150℃.Moreover,the catalyst showed good versatility in catalyzing HDO of diverse lignin-derived oxygenates and lignin oil.2D HSQC NMR,gas chromatograph and elemental analysis of the lignin oil demonstrated the high deoxygenation efficiency and saturation of the benzene ring over Ni-MoO_(3-x).In the upgrading of crude lignin oil,the deoxygenation degree was up to 99%,and the overall carbon yield of the naphthenes was as high as 69.4%.Importantly,the structures and carbon numbers of the naphthene products are similar to jet fuel-range cycloalka nes,which are expected to have a high density that can be blended into jet fuel to raise the range(or payload) of airplanes.This work demonstrates the feasibility for improving the targeted catalytic reactivity by rational tailoring the catalyst structure under the guidance of theoretical analysis,and provides an energy-efficient route for the upgrading of lignin crude oil into valuable naphthenes.

Common Emulsifier Combination Skin Feeling Research and Recommendation

Emulsifier is an important component of emulsified skin care BASE(matrix),and the common influencing factors affecting the skin feel of BASE are:emollient,thickeners,and emulsifier.The choice of emulsifier is crucial to the skin feel of cosmetics.In this paper,12 classical emulsifiers were selected and 13 combinations of them were made.Thirteen creams were designed using the same formulation structure,their physicochemical indexes were determined,and their skin feel was tested and evaluated using five expert panel scores,with the test site being the hand.Physicochemical parameters included pH and viscosity.Skin feel indicators include:stickiness,silkiness,whiteheads,greasiness at the end of application,absorption,softness after use,etc.The BASE formulations of the creams were tested and evaluated by five experts.Recommendations were also made for the selection of emulsifier combinations in the design of cream BASE formulations.

稠油乳化黏度测量曲线与乳液特性的关系

稠油化学驱过程中降黏剂浓度对稠油乳化影响明显,通过测量不同浓度降黏剂的稠油乳状液黏度-时间曲线,以黏度、降黏率为指标分析了黏度曲线与乳液特性的关系。结果表明,当降黏剂的浓度远大于临界乳化浓度时,形成稳定O/W乳状液,黏度低、降黏率大于95%。当降黏剂的浓度大于临界乳化浓度时,形成O/W乳状液,而后随着表面活性剂向油相的迁移,油滴聚并、分层。当降黏剂的浓度与临界乳化浓度相当时,乳状液油O/W转化为W/O,黏度大幅度提高。当降黏剂的浓度小于临界乳化浓度时,只能形成W/O乳状液。

乳化脂对牛肉乳化肠品质的影响

为探究使用乳化脂制作低脂乳化牛肉香肠的可行性,以乳化脂替代牛肉香肠中的脂肪,探究不同乳化脂替代比例对牛肉香肠的影响。结果表明:随着乳化脂替代量的增加(0%、25%、50%、75%、100%),牛肉乳化肠的蒸煮损失率略有上升,水分含量显著增加(P<0.05);蛋白质含量呈降低趋势,脂肪含量显著降低(P<0.05),灰分含量无较大差异;色泽方面,亮度值逐渐增加;质构方面,硬度和咀嚼性均显著降低(P<0.05);肉糜流变特性测定结果显示,肉糜初始黏度呈降低趋势;扫描电子显微镜结果显示,随着乳化脂替代量的增加,内部孔隙逐渐减小;感官评价结果显示,各乳化脂替代量组各项感官评价指标评分均不存在显著差异。综合分析可知,乳化脂添加入牛肉乳化肠可显著降低乳化肠的脂肪含量,提高乳化肠嫩度,保持牛肉乳化肠整体可接受度。

CO_(2)驱硅酸凝胶封窜体系的制备与性能

开发易注入、可形成有效封堵的裂缝封窜技术,对于二氧化碳驱提高采收率技术具有重要意义。本文对硅酸乙酯进行改性提高其耐温性和不溶性,再乳化形成易注入的O/W乳液。考察了乳化剂类型和乳化剂用量对胶凝过程的影响。明确了pH值、温度和矿化度等因素对凝胶性能的影响,并通过人造岩心评价了该硅酸凝胶体系的封堵性能。结果表明,20%Span-80+80%Tween-80组成的复合乳化剂乳化效果最好,当乳化用量为1%时,乳化稳定性最好,粒径均一,易注入。当环境pH小于7时,可诱导乳液形成凝胶;随着温度的升高,成胶强度增强,但在150℃高温下,成胶强度下降。升高矿化度可加速凝胶的生成,但对凝胶强度影响较小。动力学分析表明,H+浓度是影响凝胶产生的关键因素,因此可在CO_(2)驱替酸性环境中,实现地层封堵。岩心实验结果显示,该凝胶颗粒可显著降低地层渗透率,封堵效果大于80%,可满足二氧化碳驱防气窜要求。

离子乳化剂对乳化沥青稳定性影响的分子模拟

为探究不同离子乳化剂对乳化沥青稳定性产生的不同影响,基于分子动力学模拟,利用Materials Studio软件构建“沥青-乳化剂-水-乳化剂-沥青”双层模型结构,模拟含不同离子乳化剂分子的乳化沥青体系,对比研究阴(SDS)/阳(CTAC)离子乳化剂对乳化沥青稳定性的影响.对比加入不同乳化剂分子后,沥青乳液的相对浓度分布、界面膜厚度、界面形成能以及静电势(ESP)的变化,分析乳化沥青的稳定性.结果表明,相较于加入CTAC乳化剂的沥青乳液,SDS乳化剂更能增大沥青与水之间界面层的厚度,减小两相的界面张力,提高乳化沥青的稳定性;从静电势角度分析,相较于CTAC乳化剂,SDS乳化剂分子烷烃链的静电势极大值更大,更易与静电势为负值的原子相结合.因此,加入SDS乳化剂的乳化沥青,其整体稳定性能要优于加入CTAC乳化剂的乳化沥青.

限制性酶解结合糖基化改性对大豆分离蛋白乳化性质的影响

目的:开发基于大豆分离蛋白(soybean protein isolate,SPI)的新型乳化剂。方法:采用限制性酶解结合糖基化处理对SPI进行结构修饰,研究协同改性对SPI乳化特性的影响。结果:SPI水解物(soybean protein isolate hydrolysate,SPIH)中的相对分子质量较大组分(F30)的乳化性最佳,且糖基化反应4 h的F30-葡聚糖轭合物乳化稳定性相对最好。相较于SPI,SPIH与F30,F30-葡聚糖轭合物稳定的乳液表现出最低的初始平均粒径,并且具有最佳的贮藏稳定性。当pH接近SPI等电点或体系处于高盐浓度时,所有乳液均出现不稳定聚集现象。与SPI相比,SPIH和F30稳定乳液的聚集程度更高,而F30-葡聚糖轭合物由于共价结合的葡聚糖提供了额外的空间位阻和亲水性,使得轭合物稳定的乳液能够耐受离子强度和温度的变化,在不利环境条件下表现出更高的抵抗力。结论:限制性酶解结合糖基化改性是开发SPI基乳化配料的潜在可靠途径。

现场混装乳化基质自动加料系统的研究开发

为解决传统工艺中给现场混装车加注乳化基质效率低、现场人员多等问题,研究开发了自动加料系统。采用二维码视频识别和图像处理技术进行混装车的准确定位,并对基质储罐下料口和混装车加料口的对准情况进行自动提示;自动加料控制模块实现了自动、定量加料和现场/远程操作与控制,并且能够防止飞溅和溢出,乳化基质的加注量等信息,由系统自动记录和管理,达到了混装车乳化基质加料过程的智能化和少人化目标。该系统在炸药厂运行了近3年时间,共加注现场混装乳化基质近12 000 t,通过加料数据的实时反馈,还实现了生产任务制定、车辆调度等的精细化管理。应用结果表明,开发的自动加料系统不仅实现了乳化基质加料过程的智能化,还对提升我国现场混装乳化炸药全工序智能化水平有促进作用。

乳化沥青提高原油采收率研究进展

乳化沥青具有注入性能好、封堵强度高等优点,作为一种选择性堵剂在油田提高采收率领域比其他化学剂体系更具应用潜力。本文总结了国内乳化沥青堵水体系的开发历程及现场选择性堵水的应用效果。通过调研近年来国内外文献,概述了乳化沥青堵水的作用机理,一种是作为乳液的作用机理,主要是乳液颗粒被变形捕获产生贾敏效应和乳液液滴的机械滞留使水的流动阻力增大;另一种是其分散相也就是乳液破乳后沥青的作用机理,主要是沥青黏附在岩壁上起到的堵水作用。同时,总结了乳化沥青稳定的主要影响因素,包括温度、水相中的电解质浓度和pH值以及分散相中的沥青质,并且论述了各因素影响乳化沥青稳定性的作用机理。最后,详细叙述了乳化沥青应用于油田调剖堵水领域的最新研究进展,研究表明乳化沥青不仅具有优异的封堵效果,还具有独特的封堵选择性。此外,乳化沥青还能与CO_(2)吞吐、泡沫调驱组成复合增产技术进行现场应用,并且指出了乳化沥青应用于调剖堵水领域存在的问题与未来展望。

乳化植物甾醇对福建白兔生长性能、肠道形态及盲肠菌群与代谢物的影响

本试验旨在研究乳化植物甾醇对福建白兔生长性能、肠道形态及盲肠菌群与代谢物的影响。选取健康、体重相近的40日龄福建白兔150只,随机分为5组,每组30只(公母各占/1/2),单笼饲养。对照组饲喂基础饲粮,试验组A在基础饲粮中添加20 mg/kg的普通植物甾醇,试验组B、C、D在基础饲粮中分别添加10、20和40 mg/kg的乳化植物甾醇,试验期为60 d。饲养试验结束后采样,测定各组的生长性能和肠道形态、盲肠菌群组成与代谢物组成及相对含量。结果显示:1)与对照组和试验组A相比,试验组B、C、D福建白兔的腹泻率和死亡率明显下降,平均日采食量、平均日增重、料重比等各项生长性能指标均有一定程度的改善,其中试验组C的平均日增重、料重比与其他各组的差异达到显著水平(P<0.05)。2)与对照组相比,试验组C的十二指肠绒毛长度与试验组B、C的空肠绒毛长度显著提高(P<0.05),试验组A、B、C、D十二指肠的隐窝深度与试验组B、C、D空肠的隐窝深度显著降低(P<0.05),试验组A、B、C、D十二指肠和空肠的绒毛长度与隐窝深度比值(V/C值)与试验组B、C、D回肠的V/C值显著增加(P<0.05);试验组A空肠、回肠的V/C值显著低于试验组B、C、D(P<0.05);试验组C十二指肠的绒毛长度、试验组C、D十二指肠的V/C值显著高于其他各组(P<0.05)。3)试验组B、C、D盲肠菌群组成与对照组和试验组A相差较大,试验组B、C、D在门水平上以厚壁菌门(Firmi-cutes)、拟杆菌门(Bacteroidota)为主,厚壁菌门/拟杆菌门随着乳化植物甾醇添加剂量的增加呈现先增加后略微下降的趋势;在属水平上,Muribaculaceae、瘤胃球菌科NK4A214组(Ruminococ-caceae_NK4A214_group)、阿克曼氏菌属(Akkermansia)、梭菌纲UCG014(Clostridia_UCG-014)、梭菌纲vadinBB60组(Clostridia_vadinBB60_group)为各组优势菌属。4)添加植物甾醇的各试验组盲肠中糖和醇、有机酸、氨基酸等代谢物的相对含量比对照组增加,部分脂类和类脂类的相对含量下降,类激素物质的相对含量增加。Spearman相关性分析表明,这些代谢物与产粪甾醇真杆菌属(Eubacterium_coprostanoligenes)和瘤胃球菌科V9D2013组(Ruminococcaceae_V9D2013_group)密切相关。综上所述,饲粮中添加乳化植物甾醇可降低福建白兔的腹泻率和死亡率,提高平均日采食量和平均日增重,降低料重比,有利于改善肠道形态和盲肠菌群组成,增加盲肠中代谢物的相对含量,特别是短链脂肪酸;乳化植物甾醇添加剂量为20 mg/kg时对福建白兔生长性能和肠道黏膜形态完整性的改善效果最好,此剂量为福建白兔饲粮中的乳化植物甾醇的最佳添加剂量。