Journal
JOURNAL OF FOOD SCIENCE
Volume 79, Issue 6, Pages C1100-C1105Publisher
WILEY
DOI: 10.1111/1750-3841.12483
Keywords
anthocyanin; black rice wine; HPLC-MS; MS; phenolic constituents; solid-phase extraction
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Funding
- Foundation for Science and Technology [2012BAH30F03]
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This study established a new method for quantitative and qualitative determination of certain components in black rice wine, a traditional Chinese brewed wine. Specifically, we combined solid-phase extraction and high-performance liquid chromatography (HPLC) with triple quadrupole mass spectrometry (MS/MS) to determine 8 phenolic acids, 3 flavonols, and 4 anthocyanins in black rice wine. First, we clean samples with OASIS HLB cartridges and optimized extraction parameters. Next, we performed separation on a SHIM-PACK XR-ODS column (I.D. 3.0 mm x 75 mm, 2.2 m particle size) with a gradient elution of 50% aqueous acetonitrile (V/V) and water, both containing 0.2% formic acid. We used multiple-reaction monitoring scanning for quantification, with switching electrospray ion source polarity between positive and negative modes in a single chromatographic run. We detected 15 phenolic compounds properly within 38 min under optimized conditions. Limits of detection ranged from 0.008 to 0.030 mg/L, and average recoveries ranged from 60.8 to 103.1% with relative standard deviation 8.6%. We validated the method and found it to be sensitive and reliable for quantifying phenolic compounds in rice wine matrices. Practical Application This study developed a new, reliable HPLC-MS/MS method for simultaneous determination of 15 bioactive components in black rice wine. This method was validated and found to be sensitive and reliable for quantifying phenolic compounds in rice wine.
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