共查询到19条相似文献,搜索用时 46 毫秒
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研究酸性蛋白酶、风味蛋白酶、脂肪酶对半干发酵香肠成熟过程中理化指标的影响。以非蛋白氮(NPN)的含量和游离脂肪酸(FFAs)含量为试验指标,在单因素的基础上,通过正交试验确定了外源酶促进发酵香肠成熟的最佳工艺条件:脂肪酶添加量为0.05%,酸性蛋白酶添加量为0.015%,风味蛋白酶添加量为0.015%。在此条件下,发酵香肠在第7天时FAAs和NPN含量已经高于对照组第28天的水平,表明外源酶能加速香肠中脂肪和蛋白质的水解,对香肠成熟有促进作用;而成熟期间香肠中硫代巴比妥酸(TBA)和挥发性盐基氮(TVB-N)值都在安全范围内。试验确定添加外源酶后香肠的发酵成熟时间为14 d,较对照组缩短50%。 相似文献
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试验就小片球菌(P.parvulus)对发酵香肠在成熟过程中的微生物和理化变化的影响进行了研究.结果表明,小片球菌(P.parvulus)作为单一发酵剂加入到发酵香肠中能迅速启动产品的发酵作用,消耗环境中的糖,使pH值快速降低,从而抑制环境中的非乳酸菌,尤其是肠杆菌的生长,提高产品的安全性.小片球菌(P.parvulus)对产品的总氮、游离脂肪和灰分的变化没有影响.但其能降低终产品中水分的含量.同时还具有一定的水解蛋白质的能力,这对产品优良风味的形成是非常重要的. 相似文献
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笔者概述了目前国外有关干发酵香肠在成熟过程中的生化变化的研究进展,提出了今后的主要研究方向.干发酵香肠在成熟过程中脂肪和蛋白质均发生降解,产生大量的游离脂肪酸和游离氨基酸.蛋白质和脂肪的降解均受到温度、pH值、盐浓度等因素的影响.游离脂肪酸和游离氨基酸是干香肠形成风味物质的重要前体物.添加到干香肠肉馅中的香辛料、发酵剂和酶等也对干香肠特有风味的形成起促进作用. 相似文献
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发酵香肠及产品开发 总被引:2,自引:0,他引:2
马长伟 《中国食品与畜产科学》2000,7(6):273-274
十多年前,当我第一次踏上法兰西的版图时,一下子就喜欢上了当地一种其貌不扬但是口味鲜美的半干燥肉制品,当地人叫它“干香肠”。可能是出于职业习惯吧,从那时起我就开始注意它,并逐渐了解到它的历史、发展和现状。 相似文献
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对脂酶、酸性蛋白酶和风味蛋白酶缩短羊肉发酵香肠成熟期的效果进行研究。通过三因子二次通用旋转设计,确定3 种酶的最优组合,并测定添加外源酶后发酵羊肉香肠成熟过程中理化指标和感官指标的变化情况。结果表明:3 种酶的最优添加质量分数为脂酶0.0022%、酸性蛋白酶0.0011% 和风味蛋白酶0.0027%;加酶组成熟到第14 天时游离脂肪酸(FFA)的含量、非蛋白氮(NPN)的含量分别达到1.437%、0.647%,与对照组第35 天的FFA 含量1.382%、NPN 含量0.634% 无显著差异(P > 0.05);而在整个发酵成熟过程中,加酶组和对照组的挥发性盐基氮(TVB-N)值和硫代巴比妥酸(TBA)值没有显著差异(P> 0.05);加酶组成熟第21 天时已与对照组成熟第35 天的感官质量相似。说明外源酶的添加可以使羊肉发酵香肠的成熟期缩短40%。 相似文献
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研究了在不同发酵剂作用下,在发酵香肠的成熟过程中微生物的构成和数量的变化,得出了微生物的变化规律。 相似文献
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Laurentius A. Smit Laurentius A. P. Hoogenboom Marcel C. J. Berghmans Nel Haagsma 《Zeitschrift für Lebensmitteluntersuchung und -Forschung A》1994,198(6):480-485
The transformation of sulphadimidine (SDM) during raw fermented suasage preparation was studied to elucidate the SDM decrease found in an earlier study. The raw fermented sausages were prepared from batters containing 1 and 10 mg [14C]-SCM kg–1. The sausages and the brines were analysed using methods based on solid-phase extraction followed by HPLC combined with liquid scintillation counting. It can be concluded that the decrease in SDM level is mainly caused by (i) leaching into the brine (approx. 25%), (ii) transformation of SDM, possibly by reactions with components in the sausage or the brine, as the presence of five reaction products from SDM could be demonstrated, and (iii) formation of bound residues (approx. 20%).
Stabilität von Sulfadimidin während der Rohwurstherstellung
Zusammenfassung Die Transformation von Sulfadimidin (SDM) während der Rohwurstherstellung wurde untersucht um die bei vorhergehenden Untersuchungen gefundene SDM-Abnahme zu klären. Die Rohwurst wurde mit 1 und 10 mg14C-SDM pro kg bereitet. Die Analyse der Wurst und Pökellake erfolgte Fest-Flüssig-Extraktion und HPLC, kombiniert mit Flüssigkeits-Szintillation-Zählung. Die Abnahme des SDM-Gehaltes in der Wurst wurde hauptsächlich verursacht durch: Auslaugen (ungefähr 25%), Reaktionen von SDM mit Komponenten in der Wurst und in der Lake (fünf Reaktionsprodukte wurden gefunden), und Bildung von gebundenen Rückständen (ungefähr 20%).相似文献
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The ability of tyramine oxidase exhibiting strains of Micrococcus varians to degrade tyramine in vivo during sausage fermentation was investigated. Fermented sausage was produced with a tyramine forming strain of Lactobacillus curvatus which acquired a final tyramine concentration of 190ppm. The addition of either one of two strains of M. varians exhibiting a potential to oxidise tyramine decreased the amount of tyramine formed to 160 and 150ppm, respectively. No effect on growth of L. curvatus and pH development in the fermented sausage was observed when micrococci were present during a three weeks ripening period. Sausage fermentation was further carried out with a non-amine forming strain of L. sake and M. varians after addition of 100ppm tyramine to the raw material. The amount of tyramine in the end product was 60ppm, and during the first 10 days of ripening the decrease was faster on the outside of the sausage. 相似文献
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A protein matrix is necessary for the desired texture of fermented sausages suitable for slicing. The formation of this network is predominantly induced by myosin and actin proteins. A change in the structure of native muscle proteins results from different technological processes such as chopping, salting, and fermentation. During chopping with simultaneous release of meat proteins, the salt brings about a change in the original structure of proteins by swelling and partial solution of myofibrils. The dissolved proteins are transformed into a thin fluid colloidal transition state, the so-called 'sol-state' with unstable coagulation bonds. During sausage ripening, as a result of denaturation by lactic-acid and due to gradual loss of water (drying), the unstable bonds are replaced by condensation bonds, and thus the sol-state is converted into the 'gel-state'. Both gel formation (condensation structure) and water evaporation (syneresis) result in the development of a matrix in fermented sausage and, consequently, in the texture of the sliceable product. 相似文献
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Colour parameters of Turkish-type fermented sausage during fermentation and ripening 总被引:1,自引:0,他引:1
Colour parameters of Turkish-type fermented sausage during fermentation and ripening were evaluated. CIE x y, L* a* b*, C* h°, pigment nitrosation (NI) and pigment discoloration (RSI) were measured. Sausage processing had four stages consisting of first and second fermentation steps and then two consecutive ripening steps. Variations of colour parameters with processing indicated that Turkish-type fermented sausage processing might be divided into two well defined phases from the colour point of view. Optimum colour was obtained at the end of the first ripening step. 相似文献
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发酵香肠发酵过程中工艺优化及微生物预测 总被引:1,自引:0,他引:1
用SAS9.0中的响应曲面试验设计,研究了盐浓度、水分活度、发酵温度、发酵时间和糖浓度等环境因子对发酵香肠发酵过程中的细菌总数、乳酸细菌、葡萄球菌和微球菌的影响,建立科学的数学模型,优化了发酵香肠的生产工艺,最佳参数是:食盐5%,水分活度0.95,发酵温度14℃,发酵时间20d,白砂糖2%。并对最佳工艺发酵20d的产品、发酵30d的产品与传统工艺发酵30d的产品进行了感官鉴评,结果没有显著性差异,新工艺可行。并用建立的数学模型对发酵过程中的微生物进行了预测,结果可靠。 相似文献