加工工艺对茶油中多环芳烃组成及含量的影响
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(1. 衢州市质量技术监督检测中心,浙江 衢州 324000;2. 中国计量学院生命科学学院,浙江 杭州 310018)

作者简介:

祝华明(1961-),男,衢州市质量技术监督检测中心高级工程师。E-mail:zsbzhm@163.com

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浙江省科学技术厅重大科技专项(编号:2012C12005-4);2014年生态省建设目标责任制考核重大科技项目(编号:2014214-24)


Effect of processing technology on composition and concentration of PAHs in camellia seed oil
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(1. Quzhou Center of Quality Supervision and Technology Testing, Quzhou, Zhejiang 324000, China; 2. College of Life Science, China Jiliang University, Hangzhou, Zhejiang 310018, China)

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    摘要:

    茶油是中国特有木本油料,具有极高的营养价值和保健功能,但加工过程产生的多环芳烃(PAHs)会影响茶油质量。分别对采用低温压榨、高温压榨、溶剂浸出、超临界CO2萃取和水酶法5种制备工艺生产的毛油中15种PAHs组成与含量进行研究,并对无PAHs的茶油(<0.1 μg/kg)进行不同温度的模拟处理。结果表明,低温压榨、超临界CO2萃取和水酶法生产的茶油中PAHs含量甚微,高温压榨和溶剂浸出法生产的茶油中有部分PAHs检出,并超出相关中国或国际标准限量要求;随着模拟处理温度的升高,茶油中PAHs检出种类、含量呈上升趋势。茶油加工工艺与PAHs组成、含量之间具有相关性,高温是导致茶油中PAHs超标的主要原因。

    Abstract:

    The camellia seed oil is a kind of Chinese endemic woody oil, which had the higher nutrition value and better healthy function for the body. The Polycyclic aromatic hydrocarbons (PAHs)could be produced with the oil processing progress and affected the safety of camellia seed oil. In the experiment, the 15 ingredients of PAHs were examined in camellia seed crude oil respectively produced through five processing technologies including the low temperature squeezing, high temperature squeezing, leaching, CO2 supercritical fluid extraction and aqueous enzymatic extraction methods. The oil samples including no PAHs (concentrations<0.1 μg/kg) were respectively treated under different higher temperatures for 50 min. The concentrations of 15 PAHs ingredients were little in camellia seed oil respectively produced through the low temperature squeezing, CO2 supercritical fluid extraction and aqueous enzymatic extraction methods, and partially exceeded Chinese or international oil safety standard for the oil from high temperature squeezing and leaching methods. With the increase in processing temperature, the partial PAHs ingredients would be detected and its concentrations showed an upward trend in the treated oil. The above results indicated there was a correlation between the partial PAHs ingredients, concentrations and processing technology, and high temperature could be the main reason leading to the production of PAHs in the camellia seed oil.

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引用本文

祝华明,戴贤君,郑睿行.加工工艺对茶油中多环芳烃组成及含量的影响[J].食品与机械,2015,31(4):59-61,133.
ZHUHuaming, DAIXianjun, ZHENGRuihang. Effect of processing technology on composition and concentration of PAHs in camellia seed oil[J]. Food & Machinery,2015,31(4):59-61,133.

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  • 收稿日期:2014-09-15
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  • 在线发布日期: 2023-03-30
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