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| 1 | 桑葚花青素的提取工艺优选显示文摘桑葚是桑科落叶乔木桑树的成熟果实,含有丰富的营养成分,其花青素分子结构小,成分稳定,是提取花青素的良好原料之一。本文以浙江省内栽培种植的大十品种为研究对象,筛选出了提取桑葚花青素的最佳工艺。并以10个不同品种的桑葚为研究对象,对桑葚果汁和果渣中总花青素类的含量进行研究,为桑葚花青素的进一步加工及产品开发提供科学数据,也为桑葚果渣的再利用提供理论依据。 | 蔡荣荣 姜东青 贾姗姗 袁珂 | 2014 | 湖北三峡职业技术学院学报2014，0，2： | 0 |
| 2 | Antioxidative, anti-inflammatory potentials and phytochemical profile of Commiphora africana(A. Rich.) Engl.(Burseraceae) and Loeseneriella africana(Willd.)(Celastraceae) stem leaves extracts显示文摘Objective: To assess the antioxidant and anti-inflammatory activities as well as to determine the flavonoids and phenolic acids content of active fractions.Methods: Two medicinal plant samples were extracted successively in Soxhlet apparatus with n-hexane, dichloromethane, acetonitrile, ethyl acetate, methanol and n-butanol. Five methods were used to evaluate the antioxidant activity. Anti-inflammatory activity was done through the inhibition of the cyclooxygenase enzymes(COX-1 and COX-2).Polyphenolic compounds were analyzed by using a spectrophotometrical and high performance liquid chromatography-mass spectrometry(HPLC-MS) methods.Results: The data showed that the stem leaves extracts of Commiphora africana and Loeseneriella africana possessed significant in vitro antioxidant and anti-inflammatory activities. Polar extracts had radical scavenging effects and they reduced iron(III). The prostaglandin production was significantly stopped by acetonitrile and methanol extracts.These biological activities were supported by some bioactive compounds quantified by using the HPLC-MS. p-Coumaric acid, ferulic acid, isoquercitrin, quercitrin, quercetin,rutin, kaempferol and apigenin were the most metabolites quantified.Conclusions: The present study may explain the effectiveness of plants in traditional medicine of Burkina Faso, singularly Commiphora africana and Loeseneriella africana.The next investigation was to sub-fractionate the methanol fraction in order to isolate new antioxidant and/or anti-inflammatory compounds. | Moussa Compaore Roland Nag-Tiero Meda Sahabi Bakasso Laurian Vlase Martin Kiendrebeogo | 2016 | Asian Pacific Journal of Tropical Biomedicine2016，6，8： | 0 |
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