期刊
ANALYTICAL LETTERS
卷 54, 期 13, 页码 2097-2112出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2020.1839759
关键词
Capsaicin and dihydrocapsaicin; dietary supplements; experimental design; high-performance liquid chromatography (HPLC); ultrasound-assisted extraction
资金
- Polish Ministry of Science and Higher Education [0911/SBAD/0396]
Recent studies suggest that weight loss may be supported by compounds from plants, such as capsaicinoids found in chili peppers. However, testing on six local products revealed that concentrations of capsaicinoids were considerably lower than what producers claimed. This discrepancy may indicate that more rigorous regulation is needed to ensure the accuracy of dietary supplements.
Recent studies show that the weight loss process may be supported by compounds isolated from plants. Capsaicinoids, primarily capsaicin and dihydrocapsaicin, are the active alkaloids from chili peppers, which have been classified into this group of compounds and are widely used in dietary supplements. Due to the mild legal regulations being in force in the European Union regarding dietary supplements, concentrations of capsaicin and dihydrocapsaicin have been tested in six local products. The optimization of the capsaicin and dihydrocapsaicin extraction process was performed using central composite design. The developed procedure involved 60 minutes of ultrasound-assisted extraction with 65% methanol. High-performance liquid chromatography (HPLC) with fluorescence detection was used to analyze the extracts from the supplements. However, capsaicinoids were determined in considerably smaller concentrations than those declared by the producers.
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