Background:To promote the quality evaluation,clarify the processing mechanism and distinguish origins of Corni Fructus(cornus)from different regions.Methods:This study developed a high performance liquid chromatograph...Background:To promote the quality evaluation,clarify the processing mechanism and distinguish origins of Corni Fructus(cornus)from different regions.Methods:This study developed a high performance liquid chromatography method for simultaneous determination of 5-hydroxymethylfurfural,2 phenolic acids and 4 iridoid glycosides and the reference fingerprint of cornus from different regions.In addition,the feedforward neural network model provided a pattern classification of sample regions.Results:The content of morroniside and loganin were the highest in all raw cornus samples ranging from 9.45μg/mg to 16.3μg/mg and 6.64μg/mg to 13.7μg/mg,respectively.The level of sweroside in raw cornus from Henan(0.83μg/mg^(-1).39μg/mg)and Zhejiang(0.64μg/mg^(-1).17μg/mg)were greater than other origins.After wine-processing,the glucose or fructose were dehydrated to increase the levels of 5-hydroxymethylfurfural.The C-4 position of-COOCH3 of hot-sensitive iridoid glycosides was hydrolyzed to generate-COOH as stable components.Polyphenol derivatives may be degraded to increase the content of phenolic acid.Subsequently,an excellent feedforward neural network model for identification of raw cornus and wine-prepared cornus was established which could distinguish the sample origins.Conclusion:This work provided a trustworthy method to evaluate the quality and distinguish the sources of cornus.Meanwhile,the clear processing mechanism provided a scientific foundation for controlling the cornus quality during wine-processing.展开更多
目的:比较山茱萸去核的作用,优选山茱萸产地加工方法和工艺。方法:比较山茱萸核和肉中的马钱素、莫诺苷含量;以马钱素含量为指标,采用正交试验分别对水烫法和烘法工艺进行优选。结果:山茱萸核中不含马钱素和莫诺苷;烘法的加热温度以及...目的:比较山茱萸去核的作用,优选山茱萸产地加工方法和工艺。方法:比较山茱萸核和肉中的马钱素、莫诺苷含量;以马钱素含量为指标,采用正交试验分别对水烫法和烘法工艺进行优选。结果:山茱萸核中不含马钱素和莫诺苷;烘法的加热温度以及水烫法的加水量和烫的时间对马钱素含量均有明显影响;在60℃烘10 m in后去核为最佳工艺。结论:山茱萸去核的作用是为了去除非药用部位,烘法软化优于水烫法。展开更多
基金supported by the Innovation Team and Talents Cultivation Program of National Administration of Traditional Chinese Medicine.(No.ZYYCXTD-D-202005)the Key Project at Central Government Level(No.2060302)+1 种基金the National Natural Science Foundation of China Grants(No.81872956)Tianjin Science and Technology Planning Project(No.19YFZCSY00170).
文摘Background:To promote the quality evaluation,clarify the processing mechanism and distinguish origins of Corni Fructus(cornus)from different regions.Methods:This study developed a high performance liquid chromatography method for simultaneous determination of 5-hydroxymethylfurfural,2 phenolic acids and 4 iridoid glycosides and the reference fingerprint of cornus from different regions.In addition,the feedforward neural network model provided a pattern classification of sample regions.Results:The content of morroniside and loganin were the highest in all raw cornus samples ranging from 9.45μg/mg to 16.3μg/mg and 6.64μg/mg to 13.7μg/mg,respectively.The level of sweroside in raw cornus from Henan(0.83μg/mg^(-1).39μg/mg)and Zhejiang(0.64μg/mg^(-1).17μg/mg)were greater than other origins.After wine-processing,the glucose or fructose were dehydrated to increase the levels of 5-hydroxymethylfurfural.The C-4 position of-COOCH3 of hot-sensitive iridoid glycosides was hydrolyzed to generate-COOH as stable components.Polyphenol derivatives may be degraded to increase the content of phenolic acid.Subsequently,an excellent feedforward neural network model for identification of raw cornus and wine-prepared cornus was established which could distinguish the sample origins.Conclusion:This work provided a trustworthy method to evaluate the quality and distinguish the sources of cornus.Meanwhile,the clear processing mechanism provided a scientific foundation for controlling the cornus quality during wine-processing.
文摘目的:比较山茱萸去核的作用,优选山茱萸产地加工方法和工艺。方法:比较山茱萸核和肉中的马钱素、莫诺苷含量;以马钱素含量为指标,采用正交试验分别对水烫法和烘法工艺进行优选。结果:山茱萸核中不含马钱素和莫诺苷;烘法的加热温度以及水烫法的加水量和烫的时间对马钱素含量均有明显影响;在60℃烘10 m in后去核为最佳工艺。结论:山茱萸去核的作用是为了去除非药用部位,烘法软化优于水烫法。
