Evaluation of Physicochemical,Microbiological and Sensory Stability of Frozen Stored Vacuum-Packed Lamb Meat

Nowadays, lamb meat represents only 7% of all meat produced in the world. In recent years the demand for standardized lamb meat cuts has been considered of great importance and the marketing occurs predominantly in the form of frozen cuts. Herewith, the main of this work was to evaluate the stability and safety of lamb meat during frozen storage. Meats were vacuum packed in high barrier multilayer plastic iflms and stored during 12 mon at （-18±1）℃. The meat stability was assessed by physical and chemical （lipid oxidation, objective color, pH value, cooking losses and instrumental texture）, microbiological （total count of psychrotrophic, coliform count at 45℃, coagulase-positive staphylococci and the presence of Salmonella） and sensory analysis （acceptance test and visual evaluation）. The vacuum packed lamb meat remained stable as to most physical and chemical indexes. Microbiological indexes showed good stability throughout the storage period according to Brazilian legislation standards to pathogenic microorganisms. Although a signiifcant reduction in tenderness （shear force increase from 3 to 8 kg）, it showed a good sensorial acceptance for all attributes tested, including texture, with scores of around 7 （like moderately） during the 12 mon of storage. Therefore, it can be concluded that, under the conditions applied in this study, lamb meat presents a shelf life of at least 12 mon when stored at-18℃.     

基层票据市场发展中的问题和对策研究

经过多年的建设和发展 ,我国票据市场已初步形成了一定的规模和格局 ,拓宽了企业的融资渠道 ,促进了经济的良性发展。但就我国目前经济改革的现状而言 ,作为我国票据市场主要市场交易工具的银行承兑汇票业务 ,目前也存在不少问题 ,诸如发展不平衡、不规范、不配套等等。为加快我国票据市场的发展 ,在完善基础条件、改善运作环境、提高商业信用、修改有关规章等方面 ,提出了发展我国票据市场的对策建议。     

森林资源二类调查技术新旧规定的对比分析

对森林资源二类调查原“技术规定“和新“技术规定“进行了对比分析,提出了几点建设性意见.     

关于退耕还林工程核查工作的探讨

结合退耕还林工程管理和核查工作的经验,分析了退耕还林工程核查工作中应注意的问题,紧密围绕国家政策和规定剖析了退耕还林工程检查验收全过程的关键环节,提出了提高退耕还林工程检查验收质量的建议。     

基于3S技术的水土保持治理工程项目验收系统研究

传统的水土保持治理工程验收工作的效率和精度都比较低。随着高新技术尤其是3S技术在水土保持工作中的广泛应用,使水土保持治理工程验收效率和精度的提高成为可能。根据水土保持治理工程项目验收的工作特点,对水土保持验收内容进行分类,确定信息采集标准,以3S技术和计算机技术为基础,进行数据采集、预处理,建立数据库;按照水土保持治理工程验收的要求,系统总体结构设计为4个功能模块。系统建成后,将大大提高水土保持治理工程验收工作的效率和精度。     

管道应力应变监测试验规程研究

管道埋设在土体中或每隔一段间距支承在支座上,且充满或部分充满液体时,应力分析因边界条件的不确定而使结果不可靠。以管道单元的状态特性(几何性质、材料性质、载荷属性、应力分析属性等)作为基本出发点,分析了危险区管道单元的轴向、环向及45°方向应力分布状况及最大主应力,并结合弹性破坏理论,对试验区管道安全状况进行了有效的评价,给出了作为试验依据和参考的基于应变测试技术的管道力学监测试验理论。     

畜禽场防疫消毒技术规范及常见问题分析

介绍了畜禽养殖场常用的化学消毒药物的基础知识和操作规范,列举消毒工作中存在的问题,提出畜禽养殖场要规范消毒、科学消毒的建议。     

新版兽药GMP检查常见问题分析及改进建议

自2020年6月实施新版兽药GMP验收标准以来,对山东省验收兽药企业中发现的常见缺陷项,从质量管理、机构人员、厂房与设施、设备、物料与产品、确认与验证、文件管理、生产管理、质量控制与质量保证、产品销售与召回、自检共11个部分给予总结和归纳,对问题产生原因进行了分析,并提出改进建议,以期为兽药生产企业更好地实施GMP工作提供借鉴和参考。     

Tenth international congress of plant protection,Brighton, November 1983

Abstract

Field trials were conducted to control rodent pests of wheat crop by improving bait acceptability through taste enhancers (additives). Egg shell, egg yolk, yeast, minced meat, sheep blood and chicken blood were mixed 2% by weight individually in a bait base of broken rice and wheat flour. Brodifacoum and bromadiolone bait with egg shell additive ranked first, and egg yolk second, in preference over other additive poison baits and poison bait without additive. Poison baiting yielded 93.3% and 86.7% reduction in rodent population with brodifacoum and bromadiolone (0.005% each), respectively. Three baitings, at tillering, flowering and maturity stage of the crop, gave 91.0% tiller damage reduction with brodifacoum and 86.0% with bromadiolone as compared to control (untreated). It is concluded that three poison baitings containing egg shell additive should be initiated at tillering stage followed by flowering and maturity of the wheat crop for increased yield.     

河南省代料香菇秋栽生产技术规程

规范了河南省范围内代料香菇秋栽的栽培环境与设备、菌种制作、料棒生产、接种、发菌管理、促熟与转色、出菇管理、采收与加工、杂菌防控等技术规程。