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The Comparison between the Quality of Lime Juices Produced by Different Preservation Techniques

机译:不同保鲜技术生产的青柠汁的质量比较

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Lime is an agricultural product that is exceptionally expensive during some periods of a year. In this research, juice was squeezed out from the fresh lime prior to exposing to four different processing schemes. They comprised with (1) pasteurization at 85°C for 30 s, (2) pasteurization at 95°C for 30 s, (3) UHT sterilization at 136°C for 4 s and (4) vacuum evaporation at temperature range of 68-72°C and vacuum pressure of 97325.35Pa before pasteurization at 72°C for 15 s. The main objective was to study the effects of processing methods on the physical prop erties of products so that the proper techniques for preserving lime juice would be identified. The specimens were kept at room temperature and measured their physical attributes every week for 7 weeks; as a result, it appeared that the reconstituted lime juice prepared from the sample manufactured by the fourth processing scheme had the most similar physical characteristics to the freshly squeezed lime juice. Furthermore, the panelists preferred this juice specimen to those produced from the other three methods that applied higher processing temperatures.
机译:石灰是一种农产品,一年中的某些时候价格非常昂贵。在这项研究中,将果汁从新鲜石灰中挤出,然后再进行四种不同的处理方案。它们包括(1)在85°C下进行巴氏灭菌30 s,(2)在95°C下进行巴氏灭菌30 s,(3)在136°C下进行UHT灭菌4 s和(4)在温度范围为68的真空蒸发-72°C和97325.35Pa的真空压力,然后在72°C进行巴氏灭菌15 s。主要目的是研究加工方法对产品物理性能的影响,以便确定保存石灰汁的适当技术。将标本保存在室温下,每周测量其物理属性,持续7周。结果,看来由第四加工方案制得的样品制备的再造酸橙汁具有与鲜榨酸橙汁最相似的物理特性。此外,与其他采用较高加工温度的三种方法生产的果汁样品相比,小组成员更喜欢这种果汁样品。

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