对改进糕点中总糖含量测定方法的探讨
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摘要
目的:对已有的糕点总糖测定方法进行改进,获得更快速、准确的检测方法。方法:在样液滴定前分别对样液不过滤、过滤及加沉淀剂过滤,在过滤环节分别采用直接快速滤纸过滤、G3漏斗抽滤,在前处理浸泡环节分别采用加水浸泡、超声浸泡,分别测定其总糖及加标回收率,以获得最佳的提取方法。结果:糕点总糖的最佳测定方法为超声浸泡20 min、G3漏斗抽滤、样液滴定前过滤,该方法糕点总糖测定结果理想,回收率达到102.5%,相对标准偏差为0.10%。结论:结果表明,改进后的方法能更快速、准确地检测出糕点总糖的含量。
Objective: To improve the determination method of total sugar in cakes and obtain a faster and more accurate detection method. Methods: The samples were not filtered, filtered and precipitated before titration, the direct fast filter paper filter and G3 funnel filter were used in the filtration process,and the water immersion and ultrasonic immersion were used in the pre-treatment immersion process.The recovery rate of total sugar and standard were determined respectively to obtain the best extraction method. Results: The best method for the determination of total sugar in cakes was ultrasonic immersion of 20 min, G3 funnel extraction filtration, and sample titration. The result of this method was ideal, with a recovery rate of 102.5% and a relative standard deviation of 0.10%. Conclusion: The experimental results show that the improved method can detect the total sugar content of pastry more quickly and accurately.
Objective: To improve the determination method of total sugar in cakes and obtain a faster and more accurate detection method. Methods: The samples were not filtered, filtered and precipitated before titration, the direct fast filter paper filter and G3 funnel filter were used in the filtration process,and the water immersion and ultrasonic immersion were used in the pre-treatment immersion process.The recovery rate of total sugar and standard were determined respectively to obtain the best extraction method. Results: The best method for the determination of total sugar in cakes was ultrasonic immersion of 20 min, G3 funnel extraction filtration, and sample titration. The result of this method was ideal, with a recovery rate of 102.5% and a relative standard deviation of 0.10%. Conclusion: The experimental results show that the improved method can detect the total sugar content of pastry more quickly and accurately.
引文
[1]陈朝霞,刘素华.测定糕点中总糖含量最佳水解时间的探讨[J].食品科学,1988,(3):53-55.
[2]GB 28050-2011,预包装食品营养标签通则[S].
[3]白莉虹,康红旗,张辉,等.糕点中总糖含量测定方法探讨[J].监督与选择,2008,(12):44-45.
[4]薛梅,朱宝安.对糕点中总糖含量测定方法的探讨[J].食品研究与开发,2004,25(8):137-138.
[5]李少萍,赵凤敏,兴丽,等.糕点中总糖含量测定的不确定度评定[J].现代测量与实验室管理,2014,(1):31-33.
[6]Fahad Al-Asmari,Nilesh Nirmal,Mridusmita Chaliha,et al.Physico-chemical characteristics and fungal profile of four Saudi fresh date(Phoenix dactylifera L.)cultivars[J].Food Chemistry,2017,1016(10):644-649.
[7]马晓艳,林赛君,胡江瑛,等.糕点类食品总糖测定新方法研究--流动注射分析法[J].中国卫生检验杂志,2015,25(14):2299-2301.
[8]GB/T 20977-2007,糕点通则[S].
[9]Glaucilane S Cruz,Valéria Wanderley-Teixeira,JoséVOliveira,et al.Effect of trans-anethole,limonene and your combination in nutritional components and their reflection on reproductive parameters and testicular apoptosis in Spodoptera frugiperda(Lepidoptera:Noctuidae)[J].Chemico-Biological Interactions,2017,1016(10):74-80.
[10]Pao-Yuan Lin,Fan-Yen Lee,Christopher Glenn Wallace,et al.The therapeutic effect of rosuvastatin and propylthiouracil on ameliorating high-cholesterol dietinduced rabbit aortic atherosclerosis and stiffness[J].International Journal of Cardiology,2017,1016(10):938-949.
[11]GB/T 23780-2009,糕点质量检验方法[S].
[12]GB/T 27404-2008,实验室质量控制规范食品理化检测[S].
[2]GB 28050-2011,预包装食品营养标签通则[S].
[3]白莉虹,康红旗,张辉,等.糕点中总糖含量测定方法探讨[J].监督与选择,2008,(12):44-45.
[4]薛梅,朱宝安.对糕点中总糖含量测定方法的探讨[J].食品研究与开发,2004,25(8):137-138.
[5]李少萍,赵凤敏,兴丽,等.糕点中总糖含量测定的不确定度评定[J].现代测量与实验室管理,2014,(1):31-33.
[6]Fahad Al-Asmari,Nilesh Nirmal,Mridusmita Chaliha,et al.Physico-chemical characteristics and fungal profile of four Saudi fresh date(Phoenix dactylifera L.)cultivars[J].Food Chemistry,2017,1016(10):644-649.
[7]马晓艳,林赛君,胡江瑛,等.糕点类食品总糖测定新方法研究--流动注射分析法[J].中国卫生检验杂志,2015,25(14):2299-2301.
[8]GB/T 20977-2007,糕点通则[S].
[9]Glaucilane S Cruz,Valéria Wanderley-Teixeira,JoséVOliveira,et al.Effect of trans-anethole,limonene and your combination in nutritional components and their reflection on reproductive parameters and testicular apoptosis in Spodoptera frugiperda(Lepidoptera:Noctuidae)[J].Chemico-Biological Interactions,2017,1016(10):74-80.
[10]Pao-Yuan Lin,Fan-Yen Lee,Christopher Glenn Wallace,et al.The therapeutic effect of rosuvastatin and propylthiouracil on ameliorating high-cholesterol dietinduced rabbit aortic atherosclerosis and stiffness[J].International Journal of Cardiology,2017,1016(10):938-949.
[11]GB/T 23780-2009,糕点质量检验方法[S].
[12]GB/T 27404-2008,实验室质量控制规范食品理化检测[S].