Chemical reactions induced by ultrasound and γ-rays in aqueous solutions of l-ascorbic acid
作者:Günther Portenlänger、Helmut Heusinger
DOI:10.1016/0008-6215(92)80061-5
日期:1992.8
-ascorbic acid in aqueous solutions by ultrasound and ionising radiation was more extensive in the presence than in the absence of air. The primary products were l -erythro-2,3-hexodiulosonic acid, cis- and trans- l -glycero-4-hexulos-2-enonic acid; the secondary products were 2-pentulosonic acid, 4-pentulos-2-enonic acid, tetronic acid, and glyceric acid; and the tertiary product was tetraric acid. The
摘要在存在和不存在空气的情况下,超声和电离辐射对水溶液中1-抗坏血酸的降解作用更为广泛。主要产物为1-赤赤-2,3-己二醛酸,顺式和反--1-甘油-4-己二-2-烯酸。副产物为2-戊酸,4-戊-2-烯酸,四氢萘酸和甘油酸。叔产物是四酸。具有少于六个碳原子的产物的形成在存在空气的辐射期间特别有效。提出了通过声分解和辐射分解降解1-抗坏血酸的机理。