抗坏血酸存在下亚油酸和亚麻酸氢过氧化物的分解——挥发性醛类分析（作者译）

[Breakdown of linoleic and linolenic acid hydroperoxides in the presence of ascorbic acid analysis of the volatile aldehydes (author's transl)].

作者信息

Grosch W

出版信息

Z Lebensm Unters Forsch. 1977;163(1):4-7. doi: 10.1007/BF01123546.

Abstract

Hydroperoxide emulsions with 10(-3) mol ascorbic acid were stored for 19 h at 22 degrees C. Volatile aldehydes were formed in the presence of oxygen and traces of metals. The main compounds were identified as follows (mol-%): 2-pentenal [51] and 2-hexenal [22] from 13-hydroperoxioctadeca-9,11,15-trienoic acid; propanol [38] and 2-hexenal [25] from 9-hydroperoxioctadeca-10,12,15-trienoic acid; hexanal [82] respectively [66] from 13-hydroperoxioctadeca-9,11-respectively 9-hydroperoxioctadeca-10,12-dienoic acid. C9 and C10 aldehydes were only detected in very low concentrations as fragments of the 9-hydroperoxides.

摘要

含有10⁻³摩尔抗坏血酸的过氧化氢乳液在22℃下储存19小时。在有氧气和痕量金属存在的情况下会形成挥发性醛类。主要化合物鉴定如下（摩尔百分比）：来自13 - 氢过氧十八碳 - 9,11,15 - 三烯酸的2 - 戊烯醛[51]和2 - 己烯醛[22]；来自9 - 氢过氧十八碳 - 10,12,15 - 三烯酸的丙醇[38]和2 - 己烯醛[25]；分别来自13 - 氢过氧十八碳 - 9,11 - 二烯酸和9 - 氢过氧十八碳 - 10,12 - 二烯酸的己醛[82]和[66]。C9和C10醛仅作为9 - 氢过氧化物的碎片以极低浓度被检测到。