Analysis of Cyanide Compounds in Foods by the Purge Method Using a Midget Impinger
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- Mori Yoko
- Faculty of Pharmacy, Meijo University
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- Ueda Koji
- Faculty of Pharmacy, Meijo University
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- Sakurai Yuki
- Faculty of Pharmacy, Meijo University
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- Aoki Akira
- Faculty of Pharmacy, Meijo University
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- Okamoto Yoshinori
- Faculty of Pharmacy, Meijo University
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- Jinno Hideto
- Faculty of Pharmacy, Meijo University
Bibliographic Information
- Other Title
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- 小型インピンジャーを用いる通気法による食品中シアン化合物の分析
- コガタ インピンジャー オ モチイル ツウキホウ ニ ヨル ショクヒン チュウ シアン カゴウブツ ノ ブンセキ
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Abstract
<p>Cyanogenic glycosides in loquat (Eriobotrya japonica) seeds, which are used in so-called health foods, pose a public concern in Japan due to their potential health risks. Several pretreatment methods, such as the steam distillation and Conway microdiffusion methods, have been established for the determination of cyanogenic glycoside concentrations in foods. However, these methods are time-consuming and have extremely low throughput. Therefore, we developed a simple and rapid method, called the purge method, to analyze cyanide compounds in seed-derived food products. Under this method, the aqueous extract of cyanogenic glycosides is treated with β-glucosidase in a midget impinger, after which the liberated cyanide is purged into an absorbing solution. The concentration of cyanide in the adsorbent is then quantified using 4-pyridinecarboxylic acid-pyrazolone reagent. A single-laboratory method validation study was performed using amygdalin at a concentration of 10 ppm as cyanide ion. The validation parameter results (trueness, 83.9%; repeatability, 1.18%; intermediate precision, 4.67%) indicated that the developed method was suitable, precise and accurate. The purge method was used to analyze cyanide concentrations in commercially available food samples. Of the 10 samples tested (loquat seed powder, apricot kernel powder, and plum seed powder), three samples were found to contain cyanogenic glycosides at concentrations of >10 ppm as hydrogen cyanide, with the highest concentration detected being 861 ppm. These results clearly demonstrated the applicability of our method in determining cyanogenic glycosides in seed-derived food samples.</p>
Journal
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- Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi)
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Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 62 (5), 162-165, 2021-10-25
Japanese Society for Food Hygiene and Safety
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Details 詳細情報について
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- CRID
- 1390852870555969280
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- NII Article ID
- 130008112957
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- NII Book ID
- AN00117741
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- ISSN
- 18821006
- 00156426
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- NDL BIB ID
- 031817666
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- PubMed
- 34732642
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed