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<p><i>Amorphophallus konjac</i>, as a plant with both medicinal and edible uses that is widely valued by people, the main research on it is still glucomannan. However, a large amount of byproduct—<i>Amorphophallus konjac</i> flying powder (AKFP)—is discarded during the refining process. The reason for this lies in the insufficient research on the bioactive compounds and quality contained in AKFP. In this study, two qualitative methods, ultra-performance liquid chromatography tandem quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) and gas chromatography–mass spectrometry (GC–MS), were adopted to characterize the nonvolatile and volatile components in the supercritical CO<sub>2</sub> extract of AKFP (AKFPSE), and the contents of the four target components contained therein were determined by ultra-performance liquid chromatography–quadrupole/electrostatic field orbital trap high-resolution mass spectrometry (UPLC-Q-Exactive/MS). As a result, a total of 49 nonvolatile components and 35 volatile components were identified from the AKFPSE. In addition, the contents of <i>N</i>-hexanoyl-<span>D</span>-sphingosine (C6-SG) and <i>N</i>-acetyl dihydrosphingosine (C2-DSG) in the extract were determined to be 0.071&#xa0;mg/g and 0.010&#xa0;mg/g, respectively, and the contents of lysophosphatidylcholine 18:0 (LPC 18:0) and phosphatidylcholine 34:2 (PC 34:2) were 0.056&#xa0;mg/g and 13.749&#xa0;mg/g, respectively. In conclusion, this study employed highly sensitive mass spectrometry technology to comprehensively investigate the chemical composition and the content of nutritional components of AKFP from both qualitative and quantitative perspectives. This research can provide a research basis for the resource utilization and in-depth development of AKFP, and also offer a reference for the detection of lipids from other plant sources.</p>

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Identification of Volatiles and Non-volatiles Compounds and Quantification of Four Bioactive-Related Lipid Components in Supercritical CO2 Extract of Amorphophallus konjac Flying Powder

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Xiaoyan Peng,
  • Tao Zou,
  • Xiaoyan Zou,
  • Xiangheng Zeng,
  • Caiyun Wang,
  • Xue Zhou,
  • Fahuan Ge

摘要

Amorphophallus konjac, as a plant with both medicinal and edible uses that is widely valued by people, the main research on it is still glucomannan. However, a large amount of byproduct—Amorphophallus konjac flying powder (AKFP)—is discarded during the refining process. The reason for this lies in the insufficient research on the bioactive compounds and quality contained in AKFP. In this study, two qualitative methods, ultra-performance liquid chromatography tandem quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) and gas chromatography–mass spectrometry (GC–MS), were adopted to characterize the nonvolatile and volatile components in the supercritical CO2 extract of AKFP (AKFPSE), and the contents of the four target components contained therein were determined by ultra-performance liquid chromatography–quadrupole/electrostatic field orbital trap high-resolution mass spectrometry (UPLC-Q-Exactive/MS). As a result, a total of 49 nonvolatile components and 35 volatile components were identified from the AKFPSE. In addition, the contents of N-hexanoyl-D-sphingosine (C6-SG) and N-acetyl dihydrosphingosine (C2-DSG) in the extract were determined to be 0.071 mg/g and 0.010 mg/g, respectively, and the contents of lysophosphatidylcholine 18:0 (LPC 18:0) and phosphatidylcholine 34:2 (PC 34:2) were 0.056 mg/g and 13.749 mg/g, respectively. In conclusion, this study employed highly sensitive mass spectrometry technology to comprehensively investigate the chemical composition and the content of nutritional components of AKFP from both qualitative and quantitative perspectives. This research can provide a research basis for the resource utilization and in-depth development of AKFP, and also offer a reference for the detection of lipids from other plant sources.