Isolation and Identification of the Lipophilic Alkaloids of Embryo Loti

doi:10.3969/j.issn.1673-1689.2016.01.003

Home > Archive>Volume 35, Issue 1, 2016 >19-27. DOI:10.3969/j.issn.1673-1689.2016.01.003

Isolation and Identification of the Lipophilic Alkaloids of Embryo Loti
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                        10.3969/j.issn.1673-1689.2016.01.003
                    
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Abstract:

To further isolate and identify the lipophilic alkaloids （active ingredient） from the Chinese herb，embryo loti （the green embryo of mature seed of Nelumbo nucifera Gaertn.）. According to the chemical properties of lipophilic compounds and phenolated alkaloids，the lipophilic components of embryo loti were separated into two groups：the phenolic and the non-phenolic components. Then various column chromatographic techniques were used to isolate and purify the two components. The chemical structures of the compounds were determined from the analysis of their physicochemical properties and spectrum study，i. e.，UV，IR，MS，1H NMR，13C NMR and 2D-NMR，ect.. Tweleve different monomers were obtained from the lipophilic extraction of embryo loti，and 10 of them were identified as alkaloids. Six phenolic compounds were identified，including l- menthol，neferine，amepavine，4'-methoxy-N-methyl coclaurine，isoliensinine and liensinine. Six non-phenolic compounds were also determined，such as -sitosterol，nuciferine，pronuciferine，lysicamine，N-methoxycepharadione B and N-methylcordaldine. Among them，l- menthol，4'-methoxy-N-methyl coclaurine，lysicamine，N-methoxycepharadione B and N-methylcordaldine were first reported here.

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LI Ping, YANG Guangming, ZHANG Yulin, GU Zhiyang, LI Meng. Isolation and Identification of the Lipophilic Alkaloids of Embryo Loti[J]. Journal of Food Science and Biotechnology,2016,35(1):19-27.

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Online: March 11,2016
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