Degradation of Nucleotides and Their Related Compounds in Sea Foods during Processing and Storage VI. Degradation of Nucleotides and Their Related Compounds in File Fish Navodon modestus and Yellowfin Puffer Fugu xanthopterum Muscle during Drying

수산식품(水産食品)의 가공(加工) 및 보장중(保藏中)의 핵산관련물질(核酸關聯物質)의 변화(變化)에 관한 연구(硏究) 제6보 말쥐치 및 까치복 건조중(乾燥中)의 핵산관련물질(核酸關聯物質)의 변화(變化)

  • Published : 1974.09.28

Abstract

File fish Navodon modestus was dehydrated in cabinet type hot-sir drier at $48-50^{\circ}C$ for 11 hours and also yellowfin puffer Fugu xanthopterum was dried in open air at $26-28^{\circ}C$ for 30 hours. Nucleotides and their related compounds were collected by extraction with cold perchloric acid and their amounts were determined by anion exchange column chromatography. The contents of ADP, IMP, ATP and hypoxanthine in fresh file fish muscle were 22.9, 12.1, 4.9, and 3.2 ${\mu}mole/g,$ dry wt. respectively. AMP and inosine were 0.9 ${\mu}mole/g,$ dry wt. equally. In fresh yellowfin puffer muscle, the contents of ADP, ATP, AMP, inosine and hypoxanthine were 25.6, 2.4, 1.6, 0.3, 0.6, and 0.4 ${\mu}mole/g,$ dry wt. respectively. In the case of file fish, ADP and ATP tended to degrade rapidly during hot-air dehydration. The contents of IMP were decreased slightly while AMP and inosine were increased. And another case of yellowfin puffer, ADP also tended to degrade rapidly during sun drying while AMP, IMP, inosine and hypoxanthine were increased. Especially, in both case of file fish and yellowfin puffer, inosine was increased twenty five and thirty five times during drying respectively.

Keywords