Evaporation of allyl isothiocyanate from clay minerals and organoclays

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• 作者：Giora Rytwo ; ^{rytwo@telhai.ac.il} ; Shany Ben Moshe
• 关键词：AITC ; allyl isothiocyanate (&ldquo ; mustard oil&rdquo ; CAS 57-06-7) ; ATR ; attenuated total reflectance ; B1 ; thiamine (B1 vitamin ; CAS 59-43-8) ; FTIR ; Fourier transform infrared ; ODTMA ; octadecyl-trimethyl ammonium ; SWy-2 ; SWy-2 montmorillonite ; TPP ; tetraphenyl-phosphonium
• 刊名：Applied Clay Science
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：137
• 期：Complete
• 页码：30-32
• 全文大小：286 K
• 卷排序：137

文摘

Allyl isothiocyanate (AITC), the major component in mustard oil, is an organosulfur volatile pungent compound classified as “generally regarded as safe”. Methods to slow its evaporation rate can increase its applicability as a natural and safe preservative in food industry and as a pesticide in agriculture. This study tested evaporation of AITC mixed with mineral oil and combined with clay minerals or smectite based organoclays. Raw smectites and halloysites did not influence the evaporation rate, whereas fibrous clays increased half-life time by 3–4 folds. Organoclays differed on their efficiency. An organoclays based on thiamine (B1 vitamin) adsorbed on montmorillonite exhibited the best behavior, increasing half-life time 10 times. Thus, the combination of mustard oil with such organoclay may offer an efficient and natural character preservative and pesticide.