TY - JOUR
T1 - Chemical reactions induced by ultrasound and γ-rays in aqueous solutions of l-ascorbic acid
AU - Portenlänger, Günther
AU - Heusinger, Helmut
PY - 1992/8/3
Y1 - 1992/8/3
N2 - The degradation of l-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 formation of products with less than six carbon atoms was especially effective during irradiation in the presence of air. A mechanism for the degradation of l-ascorbic acid by sonolysis and radiolysis is proposed.
AB - The degradation of l-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 formation of products with less than six carbon atoms was especially effective during irradiation in the presence of air. A mechanism for the degradation of l-ascorbic acid by sonolysis and radiolysis is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0027110835&partnerID=8YFLogxK
U2 - 10.1016/0008-6215(92)80061-5
DO - 10.1016/0008-6215(92)80061-5
M3 - Article
AN - SCOPUS:0027110835
SN - 0008-6215
VL - 232
SP - 291
EP - 301
JO - Carbohydrate Research
JF - Carbohydrate Research
IS - 2
ER -