糖汁石灰澄清法联用电化学辅助过氧化氢氧化脱色工艺  

The process of clarifi cation by liming in combination with decolorization by electrochemical auxiliary hydrogen peroxide oxidation for syrup

作　　者：程昊[1] 李利军[1] 向富友 黄彩幸 冯淑娟[1] 夏兆博 黄文艺[1] 

机构地区：[1]广西科技大学生物与化学工程学院,广西糖资源绿色加工重点实验室,广西蔗糖产业协同创新中心,广西高校糖资源加工重点实验室,柳州545006

出　　处：《食品科技》2016年第6期104-108,共5页Food Science and Technology

基　　金：国家自然科学基金项目(31560466)

摘　　要：以赤砂糖回溶糖浆为研究对象,利用石灰法澄清除杂后进行电化学辅助氧化脱色处理,以脱色率差值为指标,考察了电解电流强度、过氧化氢用量、电解初始p H、电解温度、电解时间5个因素对赤砂糖回溶糖浆氧化脱色的影响规律。在电解电流强度为90.0 m A、过氧化氢用量为0.9%(v/v)、电解初始p H为7.60、电解温度为30.0℃、电解时间为2.0 h的条件下;脱色率可到达44.8%,比上清汁外加过氧化氢氧化脱色率高出8.7%。结果表明,石灰法澄清联用电化学辅助氧化脱色工艺具有可行性。The paper was taking remel syrup of brown granulated sugar as the object, after the process of clarification by liming using decolorization by electrochemical auxiliary oxidation. Through decolorization rate difference as the index, evaluation of variables effects such as electrolysis current intensity, hydrogen peroxide dosage, electrolysis initial p H, electrolysis temperature, electrolysis times for the oxidation decolorization for the remelt syrup of brown granulated sugar. The electrolysis current intensity is 90.0 m A; the hydrogen peroxide dosage is 0.9%（v/v）; the electrolysis initial p H is 7.60, the electrolysis temperature is 30.0 ℃, the electrolysis times is 2.0 h. Under these conditions the decolorization rate reached 44.8%, 8.7% higher than adding hydrogen peroxide oxidation decolorization in supernatant juice. The results showed the feasibility of the process of clarification by liming in combination with decolorization by electrochemical auxiliary oxidation.

关 键 词：赤砂糖 石灰法 过氧化氢 电化学辅助氧化 脱色 

分 类 号：TS201.23[轻工技术与工程—食品科学]