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分析了四川成都某一大型超市售卖的5种知名品牌的腊肉、川味腊肠和广味腊肠共15个样品中亚硝酸盐、组胺、甲醛的含量和酸价,以了解四川腌腊肉制品的质量安全情况。13.3%样品中组胺含量超过FDA规定标准;15个样品中亚硝酸盐残留量在2.1~5.3mg/kg之间,均未超标;100%样品甲醛检测呈阳性,其含量在4.89~35.93mg/kg之间;73.3%样品的酸价超过卫生标准最高限值。分析表明,传统四川腌腊肉制品酸价超标比较严重,且含有组胺、甲醛、亚硝酸盐等有害物质,质量安全状况比较严重。腌腊肉制品传统加工工艺应进行改良,以消除或减少亚硝酸盐、组胺、甲醛等有害物质,从根本上解决腌腊肉制品食用安全性问题。 相似文献
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碘盐及发酵温度对低盐固态酱油质量的影响 总被引:1,自引:1,他引:1
实验室条件下考察了碘盐及发酵温度对低盐固态法酿造酱油的影响。试验分析表明微量碘对酱油的色泽有一定影响,使用碘盐的酱油色率略高于非碘盐的酱油,红色指数相近。而发酵温度按第1~7d,41~43℃;第8~18d,44~46℃;第19~20d,47~48℃模式控制,低盐固态酱油的色率及红色指数指标较好,氨态氮的生成率最高。 相似文献
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肉制品是人类重要的营养物质来源,在肉制品加工过程中食盐是常见且必需的调味料。传统加工肉制品普遍含盐量过高,过量的摄入食盐也已经被证实能引发一系列的心脑血管疾病,因此开发低盐肉制品势在必行。但是,直接减少食盐添加量会对产品风味、口感、质构和保质期产生不利影响。因此,需要通过添加风味提升物、品质改良剂等物质并辅助以品质改良加工技术来优化产品品质。本文论述了国内外低盐肉制品的研究现状,阐述了降盐技术(食盐替代物、改变食盐形态等)和品质改良加工技术(腌制技术、超声波技术、超高压技术等)在肉制品中应用研究进展,指出其研发中存在的主要问题,并对其未来的发展前景进行展望,为低盐肉制品研发提供理论借鉴和参考。 相似文献
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The microbiological stability of low-salt cheese has not been well documented. This study examined the survival of Salmonella in low-salt compared to regular salt Cheddar cheese with 2 pH levels. Cheddar cheeses were formulated at 0.7% and 1.8% NaCl (wt/wt) with both low and high-pH and aged for 12 wk resulting in four treatments: 0.7% NaCl and pH 5.1 (low-salt and low-pH); 0.7% NaCl and pH 5.5 (low-salt and high-pH); 1.8% NaCl and pH 5.7 (standard-salt and high-pH); and 1.8% NaCl and pH 5.3 (standard-salt and low-pH). Each treatment was comminuted and inoculated with a 5-serovar cocktail of Salmonella at a target level of 4 log CFU/g, then divided and incubated at 4, 10 and 21 °C for up to 90, 90, and 30 d, respectively. Salmonella counts decreased by 2.8 to 3.9 log CFU/g in all treatments. In the initial period of survival study, standard-salt treatments exhibited significantly lower Salmonella counts compared to low-salt treatments. The pH levels did not exhibit obvious significant effect in the Salmonella survival in low-salt treatments. Salmonella counts declined gradually regardless of a continuous increase in pH (end pH of 5.3 to 5.9) of low-salt treatments at all study temperatures. Salmonella counts were reduced faster at 21 °C storage. Although there were significant reductions in Salmonella counts, the treatments demonstrated survival of Salmonella for up to 90 d when stored at 4 or 10 °C and for up to 30 d at 21 °C, the need for good sanitation practices to prevent postmanufacturing cross contamination remains. PRACTICAL APPLICATION: Low-salt aged Cheddar cheese could not support the growth of inoculated Salmonella and in fact gradual reduction in Salmonella count occurred during storage. Besides being nutritionally better, low or reduced salt Cheddar are safe as their full salt counterparts and that salt may only be a minor food safety hurdle regarding the post-aging contamination and growth of Salmonella. However, the treatments could not demonstrate complete destruction of Salmonella for up to 90 d when stored at 4 or 10 °C and for up to 30 d at 21 °C, the need for good sanitation practices to prevent postmanufacturing cross-contamination remains. 相似文献
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液体发酵中以乙醇代盐生产低盐酱油的研究 总被引:1,自引:0,他引:1
用乙醇代替部分盐发酵55d生产的低盐酱油,其中20%盐、1%乙醇溶液泡曲发酵的原酱油中氨基酸态氮为0.865g/100mL,15%~17%乙醇溶液泡曲发酵生产的无盐原酱油中氨基酸态氮约为1.020g/100mL,提高了17%;在5%盐条件下,12%乙醇溶液泡曲得到低盐酱油的氨基酸态氮为0.992g/100mL,提高了14%;10%盐条件下,5%乙醇溶液泡曲得到低盐酱油的氨基酸态氮也达到0.990g/100mL,提高了大约14%。而含有10%盐、5%~7%乙醇的酱油样品风味最好。 相似文献
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超声波技术加工低盐咸肉的工艺研究 总被引:5,自引:0,他引:5
利用均匀试验设计,以超声波处理的方式、超声波处理的时间和功率为因素,通过腌制期间肉中食盐的渗透速度、感官评定等指标对以上三个因素进行优化,并对腌制温度进行了选择.结果表明:在28kHz、表观功率0~93W范围内,超声波处理低盐咸肉的优化工艺为:鲜肉在腌制前进行超声波处理,处理条件为93W,3h,腌制温度为8℃.超声波处理各组外观、质地上几乎与对照组无区别,只是成品中弹性略高于对照. 相似文献
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文章从人们的高盐饮食习惯导致高血压等心脑血管疾病发病率高的实际情况入手,阐述了推广低钠盐的好处和作用,以及推广低钠盐采取的措施和办法,以期达到推广低钠盐、降低高血压等心脑血管疾病发病率,促进人民身体健康的目的 相似文献