The invention discloses a preparation method of ready-to-eat fresh-cut potatoes. Fresh-cut potatoes are soaked in 0.5-3.0% white vinegar solution for 0.5-2 hours, rinsed with clear water, and put into seasoning liquid to make the seasoning liquid less than 1-3 cm of potatoes, soaked in vacuum, packed in vacuum, sterilized by steam for 1-5 minutes, and then the finished product is obtained by cooling. The method can not only inhibit the browning of fresh-cut potatoes, but also improve the texture of fresh-cut potatoes. Vacuum impregnation combines the traditional impregnation process with vacuum treatment, which is simple to operate, has remarkable flavoring effect and short impregnation time, and can reduce the growth of microorganisms in the impregnation process. Raw potatoes are vacuum impregnated and packed, then steam sterilized. Sterilization and ripening of potatoes can not only maintain the texture of ready-to-eat fresh-cut potatoes, but also achieve the purpose of sterilization, thus effectively improving the storage quality of products and prolonging the shelf life of products.
【技术实现步骤摘要】
一种即食鲜切马铃薯的制备方法
本专利技术涉及一种即食鲜切马铃薯的制备方法,特别是一种贮藏特性好的即食鲜切马铃薯的制备方法。技术背景马铃薯又称土豆、洋芋、地蛋等,是一种高蛋白质、高淀粉、低热量食物,富含多种维生素和矿物质元素,具有很高的营养价值和食疗保健作用。我国是马铃薯生产大国,年产量可观,但消费量不足。目前,我国马铃薯一半以上用于鲜食,精深加工仅为年产量的10%左右,加工产品主要有淀粉和薯片,产品种类少,消费者选择面窄,商品化程度远远不够,导致马铃薯附加值低,由此,对马铃薯的深加工进行研究具有重要意义。将马铃薯加工成不同口味的即食鲜切马铃薯,不仅能较大限度地保留马铃薯的营养和风味,还能提高马铃薯的加工转化率,提高附加值,丰富马铃薯休闲食品市场。产气、褐变、质地软化是即食型鲜切马铃薯加工及贮藏过程中存在的主要问题。产气主要由微生物引起,褐变则与还原糖含量、多酚氧化酶活性、过氧化物酶活性等相关,质地软化除了微生物的作用,还与细胞壁降解酶的活性有关。传统腌渍菜,一般先将菜体烫漂后再进行腌渍,然后包装、巴氏杀菌,这样灭菌不彻底且二次加热使得产品质地变软。
技术实现思路
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【技术保护点】
1.一种即食鲜切马铃薯的制备方法,其特征在于:鲜切马铃薯用0.5~3.0%白醋溶液浸泡0.5~2h后,清水漂洗,放入调味液中使调味液没过马铃薯1~3cm,真空浸渍,抽真空包装,蒸汽杀菌1~5min,冷却即得成品。
【技术特征摘要】
1.一种即食鲜切马铃薯的制备方法,其特征在于:鲜切马铃薯用0.5~3.0%白醋溶液浸泡0.5~2h后,清水漂洗,放入调味液中使调味液没过马铃薯1~3cm,真空浸渍,抽真空包装,蒸汽杀菌1~5min,冷却即得成品。2.如权利要求1所述的即食鲜切马铃薯的制备方法,其特征在于:所述的真空浸渍是,在温度为20~35℃,真空度为50~150kPa条件下,真空浸渍10~20min,复压10~15min。3.如权利要求1所述的即食鲜切马铃薯的制备方法,其特征在于:所述调味液为麻辣调味液或甜味调味液。4.如权利要求3所述的即食鲜切马铃薯的制备方法,其特征在于:所述麻辣调味液按重量份计算,主要由辣椒面10~20份、花生油150~250份、花椒油5~10份、白酒0.5~1份、干辣椒节3~6份、青花椒1~2份、红花椒1~2份、桂皮0.5~1.5份、砂仁0.5~1.5份、八角0.5~1.5份、茴香0.3~1份、香叶0.3~1份、生姜5~10份、大蒜5~10份和葱段3~6份制成。5.如权利要求4所述的即食鲜切马铃薯的制备方法,其特征在于:所述麻辣调味液按重量份计算,主要由辣椒面15份、花生油200份、花椒油8份、白酒0.8份、干辣椒节5份、青花椒1.5份、红花椒1.5份、桂皮1份、砂仁1份、八角1份、茴香0.8份、香叶0.8份、生姜8份、大蒜8份和葱段5份制...
【专利技术属性】
技术研发人员:王梅,刘嘉,刘永翔,雷尊国,吕都,董楠,李俊,王辉,陈朝军,陈中爱,
申请(专利权)人:贵州省生物技术研究所,
类型:发明
国别省市:贵州,52
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