降低浓缩果汁中不溶物含量的技术研究与产业应用
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摘要
果汁加工过程中,为降低酶解罐中果汁不溶物(果肉纤维)含量,延长超滤有效运行时间,以富士苹果、秦冠苹果为原料,研究了果汁加工中纤维素酶的使用对超滤通量和超滤有效运行时间的影响,并进行了产业化试验。试验结果表明:在酶解工序中添加复合纤维素酶,降低了酶解罐和超滤潴留罐中不溶物(果肉纤维)的含量,提高了超滤通量,延长了超滤运行时间,降低了现有的苹果汁加工工艺中因超滤潴留罐中不溶物(果肉纤维)含量高而进行超滤提糖、清洗的频率,实现了果汁加工过程中降耗减排的效果,降低了生产成本,提高了生产效率。
In order to reduce the content of insoluble solid(pulp fiber) in juice in the clarification tank and extend the effective operation time of ultrafiltration during the producing of juice, this paper takes "Fuji" apple and "Qinguan" apple as raw materials to research the influence of cellulase in juice processing on the ultrafiltration flux and effective operation time and carries out industrialization experiments. The experiment results show that: adding compound cellulase to the clarification tank and the ultrafiltration retention tank does not increase the amount of cellobiose in the final decomposition product, reduces the content of insoluble solid(pulp fiber) in clarification tank and ultrafiltration retention tank, increases the ultrafiltration flux, extends the ultrafiltration operation time and reduces the the frequency of ultrafiltration for sugar extraction and cleaning in the existing apple juice processing technology due to the high content of insoluble solid(pulp fiber) in the ultrafiltration retention tank. And finally to realize the effect of reducing consumption and emission in juice processing, reducing production cost and improving production efficiency.
In order to reduce the content of insoluble solid(pulp fiber) in juice in the clarification tank and extend the effective operation time of ultrafiltration during the producing of juice, this paper takes "Fuji" apple and "Qinguan" apple as raw materials to research the influence of cellulase in juice processing on the ultrafiltration flux and effective operation time and carries out industrialization experiments. The experiment results show that: adding compound cellulase to the clarification tank and the ultrafiltration retention tank does not increase the amount of cellobiose in the final decomposition product, reduces the content of insoluble solid(pulp fiber) in clarification tank and ultrafiltration retention tank, increases the ultrafiltration flux, extends the ultrafiltration operation time and reduces the the frequency of ultrafiltration for sugar extraction and cleaning in the existing apple juice processing technology due to the high content of insoluble solid(pulp fiber) in the ultrafiltration retention tank. And finally to realize the effect of reducing consumption and emission in juice processing, reducing production cost and improving production efficiency.
引文
[1]苏凉.超滤技术在食品和饮料工业中的应用[J].江苏食品与发酵, 1987,(02):36.
[2]占东升,吴卫华.超滤在苹果汁澄清中的应用[J].北京农业工程大学学报, 1992,(01):104-110.
[3]孟少华,张松涛,马显军,等.超滤在食品工业中的应用[J].粮油加工, 2014,(05):71-74.
[4]王建伟,颜廷和,李岱龙.超滤在食品中的应用及发展前景[J].食品研究与开发, 2007,(05):168-170.
[5]曲昆生,刘芳,于东华,等.浓缩苹果汁加工中不溶物分离技术研究,食品科技, 2013,(12):90-94.
[6] GB/T 18963-2012,浓缩苹果汁[S].北京:中国标准出版社,2012.
[2]占东升,吴卫华.超滤在苹果汁澄清中的应用[J].北京农业工程大学学报, 1992,(01):104-110.
[3]孟少华,张松涛,马显军,等.超滤在食品工业中的应用[J].粮油加工, 2014,(05):71-74.
[4]王建伟,颜廷和,李岱龙.超滤在食品中的应用及发展前景[J].食品研究与开发, 2007,(05):168-170.
[5]曲昆生,刘芳,于东华,等.浓缩苹果汁加工中不溶物分离技术研究,食品科技, 2013,(12):90-94.
[6] GB/T 18963-2012,浓缩苹果汁[S].北京:中国标准出版社,2012.