共查询到20条相似文献,搜索用时 46 毫秒
1.
猪肉的分级、分割臁分割肉加工 总被引:2,自引:1,他引:2
猪肉的质量差异很大,应对猪肉进行分级,并分割使用,猪肉可按胴体的肌肉发达程度以及脂肪的厚薄和按胴体不同部位肌肉的组织结构、食用价值和加工用途两种方法分级,均有三个等级。猪胴体可切割为前腿肉、大排肉、方肉、奶脯、后腿肉和蹄膀等6个部位肉;分割肉加工主要包括白条肉预冷、三段锯分、小块分割与修整、快速冷却、包装和冻结等工序。 相似文献
2.
猪肉的分级、分割及分割肉加工 总被引:3,自引:0,他引:3
猪肉的质量差异很大,应对猪肉进行分级,并分割使用.猪肉可按胴体的肌肉发达程度以及脂肪的厚薄和按胴体不同部位肌肉的组织结构、食用价值和加工用途两种方法分级,均有三个等级.猪胴体可切割为前腿肉、大排肉、方肉、奶脯、后腿肉和蹄膀等6个部位肉;分割肉加工主要包括白条肉预冷、三段锯分、小块分割与修整、快速冷却、包装和冻结等工序. 相似文献
3.
4.
5.
6.
美,日两国牛胴体品质分级 总被引:1,自引:1,他引:1
美国,日本的牛胴体品质评定方法和标准,既有共同之处,又存有差异,笔者试图通过对其分级体系的概要介绍及相关研究的全面综述,揭示二者的内在区别与联系,以便我们更好地学习其先进经验,洋为中用。 相似文献
7.
牛肉分级标准及分级技术发展概况综述 总被引:4,自引:0,他引:4
我国肉牛业起步较晚,肉质较差,高档牛肉的生产无法满足国内市场日益增长的需求。我国尚未真正实施统一的牛肉等级评价体系,无法形成以质论价、优质优价的优良市场机制,制约我国肉牛产业发展。而肉牛产业发达国家很早就开始推行牛肉分级制度,各自拥有一套适合本国肉牛业发展的牛肉等级评价体系,是各国肉牛产业发展的重要保障。本文在对肉牛业发达国家的牛肉分级标准和先进牛肉自动分级技术进行概述的基础上,针对我国牛肉分级标准和分级技术的研究发展现状,提出适合我国国情的牛肉分级研究及开展分级工作的建议。 相似文献
8.
9.
10.
11.
分析了1995年以来美国、欧盟、日本、韩国和我国猪牛羊禽肉价格走势。除日本外,其余国家牛肉和猪肉价格均呈上涨趋势;美国、欧盟和中国羊肉价格以及美国、欧盟、韩国和中国鸡肉均呈涨势。日本和韩国牛肉/猪肉比价显著高于其它国家,总体呈降势,美国、欧盟和中国则呈增加趋势。我国牛羊肉/猪肉比价季节性不明显。我国和韩国鸡肉/猪肉比价处于低位。 相似文献
12.
13.
14.
U.A. Madden G.D. Osweiler L. Knipe G.W. Beran D.C. Beitz 《Journal of food science》1999,64(5):903-908
Pork and mutton sausage-type mixes produced using Eubacterium coprostanoligenes with or without Lactobacillus as starter culture showed changes in pH, cholesterol and lipid content. Viability of E. coprostanoligenes was assessed by culturing samples from each treatment and analyzing for coprostanol, a cholesterol metabolite. The pH and/or cholesterol decreased (P < 0.05) in the sausage-type mixes inoculated with E. coprostanoligenes or Lactobacillus or their combinations. Variability in lipid content was observed among and within treatments. Very low (6.2 μg/g dry matter) concentrations of coprostanol were produced in sausage-mixes and cultures except when inoculated with 2.0 g of E. coprostanoligenes (from 8.2 to 130.6 μg/g dry matter). 相似文献
15.
本文分析了宁夏清真牛羊肉市场营销的宏观及微观环境,指出了市场营销中存在的不足,提出了改进和提高清真牛羊肉市场营销水平的措施及策略。 相似文献
16.
介绍了我国牛羊肉近几年的进口情况,分析了牛羊肉进口对我国牛羊肉市场的影响,对未来牛羊肉进口趋势进行了判断。结果表明,国内牛羊供需缺口继续扩大,未来牛羊肉进口将继续增加,但空间有限,需适度进口,仍以国内供给为主。 相似文献
17.
为了研究育肥新疆褐牛不同部位分割肉块品质的差异,实验选取了11头育肥新疆褐牛,对其肩肉、辣椒条等10个部位肉进行了营养指标和理化指标的测定。结果显示,不同部位分割肉块间的蛋白质含量、脂肪含量、水分含量、蒸煮损失、剪切力、p H和肉色L*、b*值均存在差异;肩肉和臀肉的脂肪含量仅次于高档部位肉,但与高档部位肉存在显著差异(p<0.05);除大黄瓜条和小黄瓜条外,其余部位肉剪切力均低于4.39kg。可见,育肥新疆褐牛的肉质因部位不同而有所差异,且总体较嫩,为今后各部位的加工利用和品质改进提供依据。 相似文献
18.
建立高效液相色谱(HPLC)检测牛、羊肉中三聚氰胺的检测方法。样品经1% 三氯乙酸- 乙腈(3:1,V/V)提取,利用阳离子交换固相萃取柱净化后,洗脱液于50℃条件下用氮气吹干,残渣用离子对试剂缓冲液- 乙腈(90:10,V/V)溶解,用高效液相色谱法由紫外检测器检测、外标法定量。结果表明,三聚氰胺在0.2~80μg/mL 质量浓度范围内具有良好的线性关系,线性相关系数(R2)为0.9999,其检出限为0.05mg/kg。在牛肉样品中,三聚氰胺的平均回收率为81.73%~83.35%,相对标准偏差为0.97%~1.95%;在羊肉样品中,三聚氰胺的平均回收率为80.95%~82.95%,相对标准偏差为0.70%~2.32%。本方法具有操作快捷、灵敏度高、重现性好等优点。 相似文献
19.
ABSTRACT: The objective of this study was to evaluate the possible antioxidant activity of raisin paste added to raw ground beef, pork, or chicken before cooking to 163 °C. Samples were held at 2 °C for up to 14 d. TBA values were measured using a distillation method, to avoid yellow color interference found in \"wet\" TBA methods. Sample meat flavor intensity, rancid flavor intensity, and raisin flavor intensity were evaluated by a trained panel (n = 6). Addition of raisin paste lowered ( p < 0.05) TBA values and decreased panel scores for rancid flavor scores of all meat samples in a concentration-dependent manner. Highest antioxidant effects were obtained with a minimum of 1.5%, 2.0%, or 2.0% raisin paste in cooked ground beef, pork, or chicken, respectively. There was a high correlation (0.93, 0.94, 0.94) between TBA values and sensory rancid flavor scores in beef, pork, and chicken samples respectively. Addition of a reducing sugar (glucose) was nearly as effective as raisins for maintenance of low TBA values and rancid flavor scores, probably due to antioxidant effects of Maillard browning products. There was no detectable raisin flavor in cooked ground beef samples with added raisins. However, all meats with added glucose had a higher raisin flavor intensity score than controls, indicating that panelists associated sweetness with raisin flavor. Maillard browning (sample darkening) was evident after cooking of ground chicken with either raisins or glucose. 相似文献
20.
ABSTRACT: The effect of grape seed extract (GS; 0.01% and 0.02%), oleoresin rosemary (OR; 0.02%) and water-soluble oregano extract (WS; 0.02%) on oxidative and color stability of cooked beef and pork patties stored at 4 °C for 8 d was determined. Fresh beef or pork lean and trim were ground, mixed (30% fat), and divided into 5 portions. Antioxidants mixed with salt (2%) were added. Patties were formed, cooked to an internal temperature of 71 °C, overwrapped in PVC, and stored at 4 °C. Lipid oxidation, assessed using thiobarbituric acid reactive substances (TBARS) and sensory evaluation, instrumental and visual color, and pH were determined after 0, 2, 4, 6, and 8 d. Based on TBARS values and off-odors associated with lipid oxidation such as rancidity, wet cardboard (for beef patties), and grassy (for beef and pork patties), grape seed extract resulted in the best antioxidant activity in both meat species. It did not change instrumental color measures of redness, yellowness, or color intensity, and appeared to reduce visual green discoloration in beef patties. The higher GS concentration (0.02%) exhibited more antioxidant activity than the lower concentration (0.01%). Therefore, grape seed extract at 0.02% has the potential to reduce oxidative rancidity and improve shelf life of refrigerated cooked beef and pork patties. 相似文献