花生石榴复合蛋白饮料加工工艺研究

以花生、石榴为主要原料,通过工艺参数对饮料感官品质和稳定性影响的研究,确定产品最佳工艺条件.结果表明,花生石榴复合蛋白饮料最佳加工工艺条件为:花生打浆料液比为1:15(g/mL),花生浆和石榴汁(原汁)配比为12:1,乳化剂(单甘酯与蔗糖酯配比1:1)0.11％,黄原胶0.08％;一次均质压力为45 MPa,二次均质压力为35 MPa,均质温度70℃;饮料杀菌温度121℃,杀菌时间20 min.在此工艺参数条件下,制得的饮料色泽自然、口感良好.     

甜杏仁蛋白饮料的工艺优化及其稳定性研究

以甜杏仁为主要原料,研究甜杏仁蛋白饮料的制作工艺,并着重研究影响甜杏仁蛋白饮料稳定性的几个重要因素。确定饮料最佳的工艺参数:风味的配比是蔗糖6%,脱脂奶粉4%;复合稳定剂的最佳配比是黄原胶0.05%,羧甲基纤维素钠0.06%,蔗糖酯0.15%,单甘酯0.15%;最佳均质条件是均质温度60℃,均质压力35 MPa,二次均质。制得的产品口感细腻且稳定性好。     

甜杏仁蛋白饮料的工艺优化及其稳定性研究

以甜杏仁为主要原料,研究甜杏仁蛋白饮料的制作工艺,并着重研究影响甜杏仁蛋白饮料稳定性的几个重要因素。确定饮料最佳的工艺参数:风味的配比是蔗糖6%,脱脂奶粉4%;复合稳定剂的最佳配比是黄原胶0.05%,羧甲基纤维素钠0.06%,蔗糖酯0.15%,单甘酯0.15%;最佳均质条件是均质温度60℃,均质压力35 MPa,二次均质。制得的产品口感细腻且稳定性好。     

冷冻干燥法制备阿特拉津降解菌剂的条件优化

旨在研究通过冷冻干燥法制备出高活性的阿特拉津降解菌剂,并得到最佳工艺条件。采用冷冻干燥法制备阿特拉津降解菌HBT4（Microbacterium sp.）菌剂,通过单因素及正交试验对工艺条件进行优化,其中以菌体存活率为指标。结果表明添加的保护剂的最佳配方为蔗糖10% (w/v),甘油8 mL/L,脱脂乳15% (w/v)。然后在正交试验中选取4个影响因素,单因素试验结果确定3个水平,得出最佳工艺为：菌液的离心速度为7000 r/min、菌体与冻干保护剂的配比为2:1、冻干过程中装液量为12 mL、冻干的时间为16 h,此时冻干菌体的存活率最高为75.1%。该试验条件下所制备的菌剂存活率高且稳定性较好,为微生物菌剂的工艺化生产及应用奠定基础。     

响应面法用于珍珠油杏蛋白饮料稳定剂的优化

利用响应面法对复合稳定剂进行优选,研究珍珠油杏蛋白饮料的制作工艺,并对其稳定性进行研究,通过试验确定了最佳工艺参数:杏仁与水之比为1:8;蔗糖添加量为饮料总质量的8%;复合稳定剂的配比是聚甘油脂肪酸酯添加量0.38%,碳酸氢钠添加量0.36%,柠檬酸添加量0.05%;最佳均质条件为40 MPa;超高压杀菌条件为500 MPa,5 min。在此条件下制得的蛋白饮料的色泽、口感、风味、稳定性佳。     

乳化猪皮加工工艺的改进

猪皮是一种来源丰富且价格低廉的材料,其主要成分为:蛋白质25%~35%,脂肪10%～20%,水分50%～60%。由于猪皮中蛋白质的主要成分为胶原蛋白,该种蛋白不能在水或盐溶液中溶解析出,所以加工性能较差,难以直接利用。为解决这一问题,目前一般的处理方法是将生猪皮制作成乳化猪皮后再作为原料利用。1.两种工艺的比较乳化猪皮作为一种优质的肉制品加工原料,其优越的加工性能得到许多生产厂商的青睐。现行的加工工艺为:猪皮解冻→修洗、去毛根→盐水冷却→腌制→绞制→斩拌→乳化→冷却→速冻→包装入库。由于该工艺对设备性能要求很高,生产周期较长,…     

加工工艺对调配型酸性蚕豆乳稳定性的影响

以蚕豆为主要原料,对调配型酸性蚕豆乳饮料的生产工艺及影响其稳定性的各种因素进行分析,并确定其最佳条件。结果表明:添加剂(复合乳化剂、复合稳定剂和复合磷酸盐)、调酸、均质、杀菌及调配顺序是影响产品稳定性的主要因素。使用一定量的添加剂可以提高产品的稳定性,它们的最佳配比分别为蔗糖脂肪酸酯(SE-15)∶单甘酯=2∶3、魔芋胶∶瓜尔豆胶∶黄原胶=3∶2∶2、六偏磷酸钠∶三聚磷酸钠∶焦磷酸钠=1∶1∶2。酸化工艺选择20～30℃条件下采用滴状或喷雾状加酸,加酸量为0.4%,搅拌速度在不产生气泡的条件下越快越好。均质的最佳条件为20 MPa、60℃,加酸前后各均质一次。采用90℃、5 min高温短时杀菌。最佳调配顺序为先将白砂糖、水、复合乳化剂、复合稳定剂充分溶解混匀,再加入溶解了复合磷酸盐的豆乳与鲜奶混合液,最后用柠檬酸调酸。按此工艺条件产品稳定性最好。     

超声处理提高米糠蛋白溶解性与乳化性的工艺研究

通过考查米糠蛋白质量分数、超声功率、超声时间和超声温度等因素对米糠蛋白溶解性、乳化性的影响,采用响应曲面法优化了试验条件。结果表明,联合求解法确定米糠蛋白处理工艺条件为米糠蛋白质量分数3%,超声功率201 W,超声时间10 min,超声温度40℃,在此工艺条件下米糠蛋白溶解度为64.30%,乳化性0.85 m2/g。经过超声处理制备的米糠蛋白的溶解性、乳化性、起泡性、泡沫稳定性、凝胶性、持油性都要高于对照组(未经改性处理的米糠蛋白),而持水性、黏度和分散性均低于对照组。故利用超声处理方法可定向提高米糠蛋白的功能特性,从而满足生产上的需求。     

乳化对鸡胸肉持水性的影响研究

通过用大豆蛋白、聚甘油脂肪酸酯、蔗糖脂肪酸酯在不同条件下对鸡胸肉保水性及蒸煮出品率的影响进行研究,结果表明最优配方为大豆分离蛋白5%、六聚甘油单硬脂酸酯0.3%、蔗糖脂肪酸酯0.4%、乳化时间15min。     

松仁乳专用乳化稳定剂优选及其产品稳定性的研究

对松仁乳专用乳化稳定剂进行优选,并对松仁乳产品稳定性进行研究。结果表明,松仁乳专用乳化稳定剂的最佳配比为:单甘脂0.12%,蔗糖酯0.08%,黄原胶0.02%.瓜尔豆胶0.03%,PURFIYGUM0.02%,海藻酸钠0.02%。松仁乳的HLB值为6,【Ca+】≤1mmol/L,在80℃-85℃,pH值6.5-7.5,40MPa均质两次,松仁乳产品具有较好的稳定性。     

STRUCTURE ANALYSIS OF UNDERGROUND MUON EMULSION CHAMBERS

This paper reviews structure and acquired outcomes of eleven underground muon emulsion chambers constructed within seven years. This paper holds that thick type emulsion chambers haven't an advantage over thin type emulsion chambers on the basis of interaction between high energy muons and absorbent mediums,and detective efficiency of emulsion chambers.     

喷油抑尘杀虫剂的研究

本文对抑尘杀虫剂的配方进行了研究 ,将马拉硫磷、白油和表面活性剂在一定条件下混合 ,使马拉硫磷完全增溶于白油中。通过响应曲面分析得出最佳增溶条件为 :花生色拉油∶白油 =2∶3,最佳表面活性剂用量为 16.6% ,助表面活性剂用量为 1.9%。     

加工新技术在浓缩苹果汁生产中的应用

简述了酶技术、膜技术、树脂吸附技术等若干食品加工新技术在浓缩苹果汁生产中的应用.     

膳食纤维蔬菜纸贮藏品质研究

对膳食纤维蔬菜纸的品质、贮藏条件及其营养成分变化进行了初步研究.结果表明,选择避光、低温的贮藏条件和透气、透湿性比较小的复合包装材料,既能有效地避免产品受潮变质,同时又可以减少维生素C氧化损失,最大限度地提高产品的贮藏质量.     

植物提取物对桃采后褐腐病(Monilinia.fracticola)的防治研究

在室温条件下,用3种植物提取物2号、5号和12号的不同浓度处理对桃果实采后褐腐病防治效果进行了探讨.结果表明,与仅接种褐腐病菌(M.fracticola)的对照(ck)相比,提取物2号的3个浓度处理均能显著抑制褐腐病菌对桃果实的侵染(P＜0.01),并且浓度越高抑制效果越明显,其中用50mg/mL浓度处理的桃果实腐烂率为0;提取物5号处理也能显著抑制桃果实采后褐腐病的发生,用12.5 mg/mL浓度处理的防治效果最佳,腐烂率也为0;提取物12号的3个浓度处理得到的果实病斑直径基本相同,而发病率是随着提取物浓度的升高而明显降低,但总体效果均显著好于ck(P＜0.01).     

禽霍乱油乳剂灭活苗（TJ株）的研制与应用

从天津地区某些发病鸡场分离的２０余株禽多杀性巴氏杆菌中筛选４株（ＴＪ株）作为制苗用菌种，制成油乳剂灭活苗，进行物理性状检验与安全性，免疫性试验，用实验室制备的禽霍乱油乳剂灭活苗（ＴＪ株）对大港，静海等发病鸡场进行免疫接种，完全控制了禽霍乱的流行。     

Concrete with a Crack Treated by Silane Soakage

If a crack appears in marine or concrete structures due to chloride corrosion, it will be a convenient channel for the chloride to penetrate into the concrete and easily corrode the steel bars and damage the concrete. A concrete specimen with a 0.2mm wide crack was prepared. After the specimen was soaked in a silane solution, emulsion and gel, a chloride ion corrosion test was carried out. The analysis of two dimensional chloride content shows that the silane soakage treatment of cracked concrete seals the crack and prevents further corrosion.     

THE RIGID-VISCOPLASTIC FINIT ELJMENT ANALYSIS OF NON-STATIONARY FLOW OF METALS IN THE EDGE ROLLING

The rigid-viscoplastic finite element formulations for the analysis of non-stationary deformation in the edge rolling is established on the basis of the simplified 3-D. element. A new method for obtaining inital velocity field is developed in this paper. It has been used successfully to analyse the non-stationary deformation in the edge rolling of lead plates. The calculated results are found to be in good agreement with those obtained from expriements.     

Effects of planting soybean in summer fallow on wheat grain yield,total N and Zn in grain and available N and Zn in soil on the Loess Plateau of China

Dryland wheat is the major contributor to wheat production in the world, where water deficiency and poor soil fertility are key factors limiting wheat grain yields and nutrient concentrations. A field experiment was carried out from June 2008 to June 2011 at Shilipu (latitude 35.12°N, longitude 107.45°E and altitude 1200 m above sea level) on the Loess Plateau (a typical dryland) in China, to investigate the effects of rotation with soybean (Glycine max) green manure (GM) on grain yield, total N and total Zn concentrations in subsequent wheat (Triticum aestivum L.), and on nitrate-N and available Zn in the soil. The benefits of crop rotation with soybean GM on wheat grain yields became more evident with time. In the second and third years, the grain yields of wheat rotated with soybean GM reached 4871 and 5089 kg ha⁻¹ at the 108 kg N ha⁻¹ rate. These yields were 21% and 12% higher than the highest yields of wheat under a fallow-winter wheat (FW) rotation. Rotation with soybean GM reduced the amount of N fertilizer required to obtain wheat grain yields and biomass levels similar to wheat grown in the FW rotation by 20–33%. In the first 2 years, average grain N concentrations over all N rates increased by 6% and 12%, and those of Zn increased by 26% and 14% under the soybean GM-winter wheat (SW) rotation, compared with the FW rotation. The increased grain N and Zn concentrations were found to be related to the increased concentrations of nitrate-N and available Zn in the soil, particularly at the sowing of winter wheat. However, grain N and Zn concentrations were not improved by rotation with soybean GM in the third year. This was attributed to the dilution effect caused by the more grain yield increase than its nutrient export. In conclusion, planting soybean for GM in fallow fields reduced the need for N fertilizer to enhance wheat yields in this dryland region. Change in wheat grain N and Zn concentrations was related to soil nutrient concentrations, and to the balance between increased grain yield and its nutrient export.     

新城疫-传染性支气管炎-减蛋综合症三联油乳剂苗的研制

以ＮＤ Ｌa Sota株,呼吸道型,ＩＢ（ＲＩＢ）Ｈ１２０株或肾型ＩＢ（ＫＩＢ）ＳＮ９３０１株和ＥＤＳ ＸＮ９２０３株制苗毒株,分别经鸡胚和鸭胚增殖后甲醛灭活。灭活毒液依毒价按比例混合加入油佐剂中,乳化剂成“ＮＤ－ＲＩＢ－ＥＤＳ”和ＮＤ－ＫＩＢ－ＥＤＳ两种三联油乳剂苗。测试结果表明：三联疫苗安全性好,无毒副作用;乳化度、稳定性和通针性良好;免疫效果即,用三联苗免疫２０日龄鸡,免疫后１４、２８、５８d、ＮＤ、ＲＩＢ、ＫＩＢ、ＥＤＳ的ＨＩ抗体均可达７．０和９．２log2以上,于免疫后６０d用相应强毒攻击,８３．３％－１００％的鸡获有效保护。疫苗保护期长,常温避光１８０d和4℃左右３６０d,免疫效果与新制苗无明显差异。