Identification of Phytochemical Compounds in Coffea arabica Whole Coffee Cherries and Their Extracts by LC-MS/MS,Journal of Agricultural and Food Chemistry

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Identification of Phytochemical Compounds in Coffea arabica Whole Coffee Cherries and Their Extracts by LC-MS/MS
Journal of Agricultural and Food Chemistry ( IF 5.7 ) Pub Date : 2021-03-10 , DOI: 10.1021/acs.jafc.0c05937
Boris Nemzer _{1,

2} , Nebiyu Abshiru ₁ , Fadwa Al-Taher ₁

Affiliation

The current work assessed the phytochemical contents of Arabica whole coffee cherry (WCC) and its two commercially available extracts: a minimum 40% chlorogenic acid (CGA; WCCE-1) and 70% caffeine (WCCE-2). Mass spectrometry analyses tentatively identified 219 phytochemicals in the three coffee samples, which is, so far, the largest number of identifications in a single study. A new group of CGA derivative namely caffeoylvaleroylquinic acid (CVQA) was identified in the three samples. Moreover, three 5-hydroxytryptamide derivatives (C₂₀-5HT, C₂₂-5HT, and C₂₄-5HT) were identified in WCC but not in the extracts. Two groups of atractyligenin derivatives (carboxyatractyligenin and noncarboxyatractyligenin) were identified in the three samples. Furthermore, our results show that both extracts retained a large number of phenolic and other potentially bioactive compounds that were naturally present in whole coffee cherry (WCC).

中文翻译：

LC-MS / MS鉴别阿拉伯咖啡全咖啡樱桃及其提取物中的植物化学成分

当前的工作评估了阿拉比卡全咖啡樱桃（WCC）及其两种市售提取物的植物化学含量：至少40％的绿原酸（CGA; WCCE-1）和70％的咖啡因（WCCE-2）。质谱分析初步确定了三种咖啡样品中的219种植物化学成分，这是迄今为止单项研究中鉴定数量最多的一种。在这三个样品中鉴定出一组新的CGA衍生物，即咖啡酰戊酰基奎尼酸（CVQA）。此外，三种5-羟基色胺衍生物（C ₂₀ -5HT，C ₂₂ -5HT和C ₂₄-5HT）在WCC中鉴定，但在提取物中未鉴定。在三个样品中鉴定出两组白细胞精蛋白原衍生物（羧基白细胞精蛋白原和非羧基白细胞精蛋白原）。此外，我们的结果表明，两种提取物均保留了整个咖啡樱桃（WCC）中天然存在的大量酚类和其他潜在的生物活性化合物。

更新日期：2021-03-24

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