{"title":"花椰菜提取物中异硫氰酸酯的稳定性:发现了芥子素氧化生成萝卜硫素的过程","authors":"Fanfen Song , Yannick Verheust , Imca Sampers , Katleen Raes","doi":"10.1016/j.foodchem.2025.143872","DOIUrl":null,"url":null,"abstract":"<div><div>The health-beneficial effects of <em>Brassica</em> vegetables are attributed to glucosinolates-derived isothiocyanates (ITCs) whose yield is always underestimated due to their reactivity and volatility. In this work, the distribution and stability of four ITCs, including allyl ITC (AITC), phenethyl ITC (PEITC), erucin (ERN), and sulforaphane (SFN), incorporated in water and broccoli extract were described. All ITCs were mainly distributed in the aqueous phase (> 99 %). AITC and PEITC exhibited similar stability in water and broccoli extract. However, an oxidation of ERN to SFN was observed in the broccoli extract, so a rapid decrease in ERN was observed while SFN experienced an increase before the decline. Except for ERN, all three ITCs become more labile when the pH increases from 3.4 to 8.4. Both oxygen and acid conditions promote the oxidation of ERN. Those results contribute to a better understanding of the stability and detection of ITCs in broccoli extract.</div></div>","PeriodicalId":318,"journal":{"name":"Food Chemistry","volume":"480 ","pages":"Article 143872"},"PeriodicalIF":9.8000,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The stability of isothiocyanates in broccoli extract: Oxidation from erucin to sulforaphane was discovered\",\"authors\":\"Fanfen Song , Yannick Verheust , Imca Sampers , Katleen Raes\",\"doi\":\"10.1016/j.foodchem.2025.143872\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The health-beneficial effects of <em>Brassica</em> vegetables are attributed to glucosinolates-derived isothiocyanates (ITCs) whose yield is always underestimated due to their reactivity and volatility. In this work, the distribution and stability of four ITCs, including allyl ITC (AITC), phenethyl ITC (PEITC), erucin (ERN), and sulforaphane (SFN), incorporated in water and broccoli extract were described. All ITCs were mainly distributed in the aqueous phase (> 99 %). AITC and PEITC exhibited similar stability in water and broccoli extract. However, an oxidation of ERN to SFN was observed in the broccoli extract, so a rapid decrease in ERN was observed while SFN experienced an increase before the decline. Except for ERN, all three ITCs become more labile when the pH increases from 3.4 to 8.4. Both oxygen and acid conditions promote the oxidation of ERN. Those results contribute to a better understanding of the stability and detection of ITCs in broccoli extract.</div></div>\",\"PeriodicalId\":318,\"journal\":{\"name\":\"Food Chemistry\",\"volume\":\"480 \",\"pages\":\"Article 143872\"},\"PeriodicalIF\":9.8000,\"publicationDate\":\"2025-03-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Food Chemistry\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0308814625011239\",\"RegionNum\":1,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Food Chemistry","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0308814625011239","RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
The stability of isothiocyanates in broccoli extract: Oxidation from erucin to sulforaphane was discovered
The health-beneficial effects of Brassica vegetables are attributed to glucosinolates-derived isothiocyanates (ITCs) whose yield is always underestimated due to their reactivity and volatility. In this work, the distribution and stability of four ITCs, including allyl ITC (AITC), phenethyl ITC (PEITC), erucin (ERN), and sulforaphane (SFN), incorporated in water and broccoli extract were described. All ITCs were mainly distributed in the aqueous phase (> 99 %). AITC and PEITC exhibited similar stability in water and broccoli extract. However, an oxidation of ERN to SFN was observed in the broccoli extract, so a rapid decrease in ERN was observed while SFN experienced an increase before the decline. Except for ERN, all three ITCs become more labile when the pH increases from 3.4 to 8.4. Both oxygen and acid conditions promote the oxidation of ERN. Those results contribute to a better understanding of the stability and detection of ITCs in broccoli extract.
期刊介绍:
Food Chemistry publishes original research papers dealing with the advancement of the chemistry and biochemistry of foods or the analytical methods/ approach used. All papers should focus on the novelty of the research carried out.