以QuEChERS萃取法搭配 Biphenyl靜相與超效能液相層析串聯式質譜系統定量葡萄中花青素
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2021
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Abstract
花青素(anthocyanosides)廣泛地分佈於植物組織中,對於人體生理作用而言,以抗氧化與抗發炎特性而被受到重視。於富含多種天然成份的葡萄中,亦能發現花青素的存在,能夠為人類健康提供必需之營養。本研究開發了利用QuEChERS (quick, easy, cheap, effective, rugged and safe method)搭配聯苯(biphenyl)靜相-液相層析串聯質譜技術之分析平台,並將其應用於快速分離葡萄樣品中的十二種常見花青素。來自葡萄中所被偵測的單醣(mono-)與非醣基化(un-glycosylation)的花青素而言,聯苯靜相能夠快速達到有效地層析分離,且運用優化之QuEChERS樣品前處理與超高效能液相層析串聯式質譜儀,開發了一種高靈敏度且精確的方法並克服複雜的葡萄基質干擾。針對此分析方法進行驗證,其動態定量範圍為0.5至500 ng mL-1,日內與日間性精密度(%RSD)皆低於11.8%。同時成功地檢測來自不同國家及地區的葡萄樣品,其所測定含量範圍為3.31至23.97 mg/100 g之間。藉由已開發之QuEChERS搭配液相層析串聯式質譜技術,為花青素之定量分析提供了一種更有價值與吸引力的新穎方法。
Anthocyanosides (AnCS), which are widely distributed in plant tissues, have important physiological roles and are known for their antioxidant and anti-inflammatory effects. As a source of nutrition in the human diet, grapes contain a variety of natural compounds, including anthocyanosides. In this study, a sensitive and accurate method was developed using quick, easy, cheap, effective, rugged, and safe method (QuEChERS) and ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) system for the determination of anthocyanosides in grapes. A liquid chromatography method using a biphenyl stationary phase was developed and applied for the rapid separation of 12 anthocyanosides. Efficient separation was achieved for a wide range of mono- and un-glycosylated anthocyanosides and specific glycosylation patterns were found in grapes. The linear ranges of the target anthocyanosides were 0.5–500 ng mL−1. The intra- and interday precisions (%RSD) were both below 11.8%. Anthocyanosides in grapes from different sources were successfully quantified, with concentrations ranging from 3.31 to 23.97 mg/100 g. Thus, the developed QuEChERS and UHPLC-MS/MS method provides an attractive alternative for the quantification of anthocyanosides in grapes.
Anthocyanosides (AnCS), which are widely distributed in plant tissues, have important physiological roles and are known for their antioxidant and anti-inflammatory effects. As a source of nutrition in the human diet, grapes contain a variety of natural compounds, including anthocyanosides. In this study, a sensitive and accurate method was developed using quick, easy, cheap, effective, rugged, and safe method (QuEChERS) and ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) system for the determination of anthocyanosides in grapes. A liquid chromatography method using a biphenyl stationary phase was developed and applied for the rapid separation of 12 anthocyanosides. Efficient separation was achieved for a wide range of mono- and un-glycosylated anthocyanosides and specific glycosylation patterns were found in grapes. The linear ranges of the target anthocyanosides were 0.5–500 ng mL−1. The intra- and interday precisions (%RSD) were both below 11.8%. Anthocyanosides in grapes from different sources were successfully quantified, with concentrations ranging from 3.31 to 23.97 mg/100 g. Thus, the developed QuEChERS and UHPLC-MS/MS method provides an attractive alternative for the quantification of anthocyanosides in grapes.
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花青素, 葡萄, QuEChERS, Biphenyl靜相, 液相層析串聯質譜, Anthocyanosides, Grapes, QuEChERS, Biphenyl stationary phase, LC-MS/MS