The invention relates to the technical field of starter, in particular to a direct-casting compound starter and its preparation method and application. The direct-casting compound starter is composed of Lactobacillus acidophilus freeze-dried bacterial powder and Staphylococcus botulinum freeze-dried bacterial powder in accordance with the mass ratio of 0.5 2.5:1. Lactobacillus acidophilus freeze-dried powder is prepared by vacuum freeze-drying of Lactobacillus acidophilus suspension and Lactobacillus acidophilus freeze-dried composite protectant. Compared with mature commercial starters on the market, the direct-input compound starter prepared by the invention has novel strains and broad market prospects; the direct-input compound starter prepared by the invention has high viable bacteria count, low cost, high safety, long-term preservation and transportation, excellent fermentation performance, shorter production cycle, etc., and can meet commercial application and industrial production. The salami sausage produced by the starter has excellent fermentation performance. The sausage is rosy red, fat and thin, soft acidity, good taste and high acceptability. It can meet the needs of Chinese people for taste and nutrition.
【技术实现步骤摘要】
一种直投式复合发酵剂及其制备方法和应用
本专利技术涉及发酵剂
,具体涉及一种含冻干复合保护剂的直投式复合发酵剂及其制备方法和应用。
技术介绍
萨拉米香肠是一种营养丰富、色泽诱人、气味独特的西式即食保健发酵肉制品,由于食用方便、易贮藏、保质期长而深受欧洲民众喜爱,但是萨拉米传入中国后,由于其口感偏酸,很难被我国消费者接受,所以开发适合我国消费者口味的萨拉米香肠迫在眉睫。发酵剂是生产高质量发酵肉制品的关键,但是我国肉制品发酵剂几乎均从国外进口,成本较高,同时由于中西方饮食习惯的差异,制约了我国发酵肉制品的发展,所以研发具有自主知识产权的肉制品发酵剂具有重大意义。优良的菌种是发酵剂的核心,嗜酸乳杆菌能快速的降低原料肉的pH值,对发酵香肠的安全和货架期具有重要作用,肉糖葡萄球菌产酸能力弱,但因对促进发色、清除过氧化物和形成特有风味非常重要,所以随着第三代肉制品发酵剂的诞生,越来越多的益生菌被应用于肉制品发酵剂。目前市场上流通的成熟商业用发酵剂均是由不同菌种不同比例混合而成,但是目前市场上并没有与本专利技术相同的直投式复合发酵剂。真空冷冻干燥是制备冻干菌粉常用的技术,如果将菌种直接冻干,则具有死亡率高、安全性低、保质期短等缺点;而冻干复合保护剂的添加是提高菌种冻干存活率的关键。中国专利CN200910236172.8中嗜酸乳杆菌冻干复合保护剂由脱脂乳、甘油、谷氨酸钠、乳糖、维生素C五种物质组成,菌种接种量为2%,活菌数达1012CFU/g,比本专利技术保护剂种类多、成本高。中国专利CN201010205879.5、中国专利CN201210266368.3、中国 ...
【技术保护点】
1.一种直投式复合发酵剂,其特征在于:所述直投式复合发酵剂由嗜酸乳杆菌冻干菌粉与肉糖葡萄球菌冻干菌粉按照质量比0.5‑2.5:1复合而成。
【技术特征摘要】
1.一种直投式复合发酵剂,其特征在于:所述直投式复合发酵剂由嗜酸乳杆菌冻干菌粉与肉糖葡萄球菌冻干菌粉按照质量比0.5-2.5:1复合而成。2.根据权利要求1所述的直投式复合发酵剂,其特征在于:所述嗜酸乳杆菌冻干菌粉由嗜酸乳杆菌菌悬液与嗜酸乳杆菌冻干复合保护剂经真空冷冻干燥而成。3.根据权利要求1所述的直投式复合发酵剂,其特征在于:所述嗜酸乳杆菌冻干复合保护剂包括脱脂乳、海藻糖、甘油和谷氨酸钠。4.根据权利要求3所述的直投式复合发酵剂,其特征在于:所述嗜酸乳杆菌冻干复合保护剂配方具体为:脱脂乳10-15份,海藻糖2.5-5.5份,甘油7.5-10.5份,谷氨酸钠1.5-4.5份,水100份。5.根据权利要求1所述的直投式复合发酵剂,其特征在于:按体积比计,嗜酸乳杆菌菌悬液与脱脂乳体积比...
【专利技术属性】
技术研发人员:徐宝才,张风华,李新福,李聪,吴香,
申请(专利权)人:合肥工业大学,江苏雨润肉食品有限公司,上海大学,
类型:发明
国别省市:安徽,34
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