冷却肉保鲜技术及其研究进展

冷却肉的货架期是限制我国冷却肉发展的瓶颈所在.为了提高冷却肉品质,延长冷却猪肉货架期,本文阐述了冷却肉保鲜技术、各种保鲜方法原理和特点,同时对保鲜冷却肉存在的问题和研究方向也进行了探讨.     

浅议中国肉制品的发展趋势

肉类产业的发展方向 冷却肉被看好。近几年,我国肉类消费发生了明显的结构性变化,呈现从冷冻肉到热鲜肉,再从热鲜肉到冷却肉的过程。形成“热鲜肉广天下、冷冻肉争天下、冷却肉甲天下的”三足鼎立局面。冷却肉吸取了热鲜肉和冷冻肉的优点,又排除了两者的缺陷。保持了肉品新鲜度,肉嫩味美、营养价值较高。冷却肉的问世,被称     

如何购买猪肉及其熟食制品

上海市民爱吃冷却肉 在经济发达的欧美国家以及日本,人们都喜爱吃冷却肉,上海的广播电台、电视台也常常向人们推介冷却肉。说冷却肉新鲜、卫生、方便、有营养。 什么叫冷却肉? 规范地说:冷却肉是指屠宰后的健康生猪,经兽医检验合格后,通     

冷却肉的加工现状和发展趋势

主要阐述了冷却肉的特点、国内外冷却肉的加工研究现状，并对冷却肉研究发展趋势进行展望。     

屠宰工艺对冷却肉滴水损失的影响

系统地分析了生猪屠宰工艺对冷却肉滴水损失的影响.综述了禁食、致昏、戳刺、放血和胴体冷却与冷冻等工艺对冷却肉滴水损失的影响,探讨了提高冷却肉肌肉保水性的措施.     

影响我国冷却肉发展的原因

探讨了我国消费者肉类消费习惯、对冷却肉认识水平及冷却肉质量与价格状态制约我国冷却肉生产发展的影响。     

影响冷却肉品质的因素

冷却肉以其安全、味美、营养价值高等优点在国外的肉类市场上倍受青睐,但冷却肉在4℃左右生产销售并不能完全抑制微生物的生长繁殖,因而货架期短。本文着重介绍了影响冷却肉品质的因素以及控制方法,以期促进我国冷却肉的发展。     

冷却肉品质控制技术

冷却肉在4℃左右生产销售并不能完全抑制微生物的生长繁殖,因而货架期短。阐述了冷却肉生产中影响其保鲜效果的因素以及冷却肉生产中常用的保鲜理念,旨在推动我国冷却肉向着健康、安全的方向发展。     

国外冷却肉加工贮藏研究的某些进展

<正> 冷却肉与冻结肉相比;在物理、生物化学、营养学、产品质量方面均占有优势.随着人们对食品质量要求的提高,冷却肉又引起人们的广泛重视.国外发达国家冷却肉的销量占很大比重,围绕冷却肉的研究相当活跃.1986年九月在英国布里斯托尔(Bristol)召开了一次冷却肉专题研讨会,有17个国家参加,会上提出了63篇论文.木文从国内实用角度出发,简介国外在这个领域的某些进展.     

冷却肉的研究近况与展望

综述了冷却肉的国内外研究现状,指出目前我国冷却肉生产和消费所存在的问题,并对冷却肉的发展前景进行展望,对我国冷却肉的进一步开发和研究具有一定的参考意义。     

Effect of Carcass Chilling on the Palatability Traits and Safety of Fresh Red Meat

Chilling procedures have been widely used in livestock abattoirs since the development of refrigeration systems. The major criteria when applying chilling regimes is not only complying with regulations, but economic concerns, and also meat safety and quality assurance requirements. Given recent developments, an updated review is required to guide the industry to choose the best chilling method and to inspire the development of new approaches to chilling. Thus in this paper, the quality and microbial safety of beef, lamb, pork, venison, and bison resulting from different chilling treatments has been reviewed, as well as the underlying mechanism(s) for the different impacts on meat quality traits as a result of different chilling regimes. The effect of fast chilling on the tenderness of beef and lamb is a focus, as some new findings, have recently been reported, while multistep chilling is highlighted as it incorporates the advantages of fast chilling to reduce carcass weight loss, resulting in similar quality improvements as found with slow chilling. It is, suggested, that if spray chilling can be combined with the second phase of multi‐step chilling, it will benefit the meat industry in terms of both meat quality and safety. Future studies should focus on combinations of chilling methods with new technologies, such as medium voltage electrical stimulation, muscle stretching, or ultrasound and so on, to move meat quality and safety to a new level.     

肉类的冻结加工技术与经济分析

肉类的冻结加工技术有两阶段冻结工艺和直接冻结工艺等.通过试验对比认为,直接冻结工艺优于两阶段冻结工艺,且对提高冷藏企业的经济效益有一定的积极作用.     

肉类在冷藏期间的变化和质量管理

为了确保肉类在冷藏期间的质量,应防止肉类在冷藏期间的变化,并做到保持冷却肉的冷藏条件和冻结肉的冻藏条件.     

冷却肉的冷却与包装

生猪宰后胴体迅速进行冷却处理,使胴体温度在24小时内降为0～4℃,并在后续的分割、包装、流通和零售等过程中,始终处于0～4℃范围内的生鲜肉称之为冷却肉.微生物污染是冷却肉产品质量的重要危害.冷却肉的流通,目前采用加工厂内真空大包装,运输到超级市场后,制作成托盘保鲜小包装.     

冷却肉的加工技术及质量控制

冷却肉（猪肉）是指宰后胴体迅速进行冷却处理,使胴体温度在24小时内降为0-4℃,并在后续的分割、包装、流通和零售等过程中,始终处于0-4℃范围内的生鲜肉（猪肉）。微生物的污染是冷却肉产品质量的重要危害,因此,我们在生产加工与流通过程中实施HACCP系统监控,以确保产品的安全卫生。冷却肉的流通结合实际情况,目前采用加工厂内真空大包装,运输到超级市场后,制作成托盘保鲜小包装。     

应用多靶栅栏技术控制羊肉生产与贮藏过程中的微生物

在冷却羊肉的生产过程中 ,可以运用表面清洗消毒、添加化学生物防腐剂、真空包装、低温贮藏等栅栏因子对羊肉产品的微生物进行控制。有效的多靶栅栏组合是采用 5 0mg/L稳定态ClO2 对胴体进行表面消毒 ,添加 0.0 1%乳酸链球菌素和 1%乳酸钠 ,真空包装后于 (4± 1)℃贮藏 ,可以使冷却分割羊肉的货架期达到 30d。     

The effects of different chilling methods on meat quality and calpain activity of pork muscle longissimus dorsi

The objective of this study was to investigate the effects of conventional chilling (0 to 4 °C), rapid chilling (RC, -20 °C for 30 min, followed by 0 to 4 °C), and short-duration chilling (0 to 4 °C for 30 min, followed by 25 °C) on meat quality and calpain activity of pork muscle longissimus dorsi (LD). The muscle quality characteristics pH, color, cooking loss, pressing loss and tenderness, and calpain activities were measured 0-, 3-, 12-, and 24-h postmortem. Results show that the RC resulted in a faster temperature decline of the muscle, and prevented the meat pH and Commission Internationale de l'Eclairage L* value from declining during postmortem aging. RC also reduced meat cooking loss and pressing loss compared with the other two chilling methods. However, the chilling methods did not significantly affect meat shear force. During the first 24-h postmortem, there was not a noticeable change in the activity of m-calpain. But μ-calpain activity decreased regardless of chilling method. In the rapidly chilled carcasses, μ-calpain activity remained the same 3- and 12-h postmortem. However, in the short-duration chilled and conventionally chilled carcasses, the activity was visibly reduced. At 24-h postmortem, no clear zones on the gel were observed in all three treatments. PRACTICAL APPLICATION: Conventional and RC methods are commonly used for pork in commercial practice nowadays. Compared with conventional chilling, the effect of RC on quality parameters of pork varies. In recent years, short-duration chilling (SC) is widely used in many Chinese pig slaughtering facilities. However, few researchers have studied the effect of SD on pork quality. Therefore, the present study investigated the effect of different chilling methods on functionalities or quality of chilled pork meat.     

肉品微生态系统与肉类发酵剂研究

论述了鲜肉、腌制、熏制及传统自然发酵肉制品中主要微生态菌群的构成与气调贮藏、冷链系统中肉品微生态系的变化。介绍了国外商业化肉类发酵剂中酵母菌、霉菌、乳酸菌、微球菌、链霉菌等微生物的生理生化与分子特性。可以认为 ,以PCR为基础的分子检测技术将是对食品微生态系进行研究的有效手段。     

Nisin及其在冷却肉保鲜中的应用

冷却肉具有食用卫生安全、肉质柔嫩、滋味鲜美的特点,势必成为今后生肉消费的主流。冷却肉保鲜是制约其发展的重要因素。Nisin作为一种天然安全的微生物防腐剂,已经被用于很多食品的保鲜中。本文阐述了Nisin的特点及其在冷却肉保鲜中的应用现状。     

HACCP与冷却肉加工技术

本文阐述了HACCP的概念和原则及其在冷却肉生产中的应用,着重介绍了肉类冷却工艺的几种不同处理方式.