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食品研究与开发:2016,37(9):34-37
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温度对黑蒜主要理化性质及抗氧化作用的影响
刘子明,李国华*
(吉林工程职业学院,吉林 四平 136001)
Effect of Temperature on Physicochemical Properties and Antioxidant Activity of Black Garlic
LIU Zi-ming, LI Guo-hua*
(Jilin Engineering Vocational College, Siping 136001, Jilin , China)
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投稿时间:2015-03-05    
中文摘要: 在相对湿度恒定为 70 %,生产温度分别为 45、65、75、85 ℃条件下生产黑蒜。通过考察生产温度对黑蒜生产过 程中褐变度、pH、S-烯丙基-L-半胱氨酸(SAC)含量和抗氧化活性的影响,以期建立黑蒜的质量因素参数。结果表明:黑 蒜样品 SAC 含量、pH 随温度增加而降低, 而黑蒜的褐变度、DPPH 自由基清除能力及还原能力均随热处理温度的升高 而增大。在 85 ℃时黑蒜样品的 pH 最低为 3.25,褐变度、DPPH 自由基清除率及还原能力最高分别为 2.08、76.77 %、3.42。 因此,高温有助于提高黑蒜产品的生物稳定性及抗氧化性能。
中文关键词: 黑蒜  温度  理化性质  抗氧化性能
Abstract:Black garlic was produced at varying temperatures(45, 65, 75, 85 ℃) with 70 % relative humidity (RH) for 45 days. In order to investigate the effects of temperature on the properties of black garlic by analyzing pH, browning intensity, S-allyl cysteine (SAC) content and antioxidant activity, to establish a quality factor for black garlic. The results indicated that pH, the SAC contents of black garlic decreased with increasing tem- perature,while the browning intensity, the DPPH radical scavenging activity and reducing power increased with increasing temperature. The pH of the garlic samples heated 85 ℃was lowest, reaching 3.25, the browning in- tensity, the DPPH radical scavenging activity and reducing power got the maximum value, were 2.08, 76.77 %,3.42, respectively. High temperature could help improve the biologically stable and antioxidant activity.
文章编号:201609008     中图分类号:    文献标志码:A
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