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KMID : 0380620160480060531
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Korean Journal of Food Science and Technology
2016 Volume.48 No. 6 p.531 ~ p.535
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Simultaneous determination of Phlomis umbrosa and Dipsacus asperoides in foods using LC-MS/MS methods
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Yun Ji-Suk
Kim Jin-Young
Choi Jang-Duck
Kwon Ki-Sung
Jo Cheon-Ho
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Abstract
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Phlomis umbrosa and Dipsacus asperoides are distinct species, even though they have a similar appearance. Dipsacus asperoides is used as a Chinese medicinal plant for and has bone strengthening and fracture healing but Phlomis umbrosa has no effect on bone growth. Recently, these plants were used in children’s food to improve their bone growth, without distinction in food. Intakes of Dipsacus asperoides in food may be dangerous, because it has never been used in food and its safety has never been tested in humans. We developed liquid chromatography with tandem mass spectrometry method to distinguish these plants in food. The method was validated for linearity, limits of detection, limits of quantification, accuracy and precision. In 5 of 17 samples, we identified Dipsacus asperoides, containing loganin 0.19-14.45 μg/mL, sweroside 0.13-4.61 μg/mL and akebia saponin D 0.59-19.29 μg/mL. The developed method might be useful to identify Dipsacus asperoides in adulterated food.
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KEYWORD
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Phlomis umbrosa, Dipsacus asperoides, adulteration, LC-MS/MS
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