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玫瑰果(L.)茶提取物中多酚含量的研究:一项比较研究。

Investigation of Polyhenolic Content of Rose Hip ( L.) Tea Extracts: A Comparative Study.

作者信息

İlbay Zeynep, Şahin Selin, Kirbaşlar Ş İsmail

机构信息

Department of Chemical Engineering, Engineering Faculty, Istanbul University, 34320 Avcılar, Istanbul, Turkey.

出版信息

Foods. 2013 Feb 5;2(1):43-52. doi: 10.3390/foods2010043.

Abstract

Three different brands of Rose hip ( L.) tea were extracted with water, ethanol (EtOH), methanol (MeOH), and aqueous mixtures (50%, v/v) by ultrasound-assisted extraction (UAE) and Soxhlet methods. Total phenolic content was determined according to the Folin-Ciocalteu method. The results were presented by means of the extract yields and total phenolic contents, expressed in gallic acid equivalent (GAE) per g of dried matter (DM). The greatest amount of extract observed in tea samples was obtained by UAE through water with the value of 619.37 ± 0.58 mg/g DM. Regarding the phenolic content, the best result was achieved by the Soxhlet method through 50% MeOH mixture (59.69 ± 0.89 mg GAE/g DM), followed by the UAE method with water (48.59 ± 0.29 mg GAE/g DM).

摘要

采用超声辅助提取法(UAE)和索氏提取法,用水、乙醇(EtOH)、甲醇(MeOH)以及水混合液(50%,v/v)对三种不同品牌的玫瑰果茶进行提取。根据福林-西奥尔特法测定总酚含量。结果以提取物产率和总酚含量表示,以每克干物质(DM)中没食子酸当量(GAE)来衡量。通过超声辅助提取法用水提取茶样品时,提取物产量最高,为619.37 ± 0.58 mg/g DM。就酚含量而言,索氏提取法用50%甲醇混合液效果最佳(59.69 ± 0.89 mg GAE/g DM),其次是超声辅助提取法用水提取(48.59 ± 0.29 mg GAE/g DM)。

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