文档介绍:actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under全面系统。
随着肉牛营养和食品科学的发展,仅仅限于牛肉营养和安全的研究已经无法满足现代肉牛业与食品生产及科研的需要,消费者对于牛肉适口性的要求已经成为新的研究热点。牛肉感官评定指标是多方面的,其中肉色、大理石纹等指标是通过人的视觉系统来评定的。肉色在一定程度上会影响消费者的选购心理,而大理石纹通常用来评定牛肉脂肪含量,从而推断牛肉的风味和口感。尽管这两项指标可以间接用来推断牛肉的风味,但外观并不代表内在质量,由于肉牛品种的特性,不同牛种的肉色和大理石纹的差异非常大,种间不具可比性。例如牦牛肉具有非常好的风味,但由于生长环境等因素的影响,其肉色暗红,在一般的肉色评价中反而会得到很低的分数。因此,用一套标准来评定各种牛肉的肉色和大理石纹等级是很难客观预测牛肉的真实品质的。而如果对每个牛种都建立相应的评定标准,需要消耗大量的人力、物力和财力,目前来说也很难实现。
牛肉的可口性可以通过感官指标中的风味评价指标来表达,包括嫩度、风味和多汁性等,这是一个与牛肉消费接受度密切相关的指标,是牛肉品质最直接测定的指标。相比肉色、大理石纹的评价方法,风味评价更加准确町靠。因此,风味评价对于牛肉品质的评价是不可或缺的,也是对牛肉品质评价体系最有利的补充。
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense education, drawn out of the air defense in Pingliang city Building under easy fare, daily special inspection and regulation, overfulfilled the province upper and lower knots of up to 500,000 yuan fee collection tasks. 5, further standardize internal management, improve staff quality. Adhere to the
actively carry out the law on civil air defense ed