Quantification of antioxidants in channel catfish during frozen storage

被引:29
作者
Brannan, RG [1 ]
Erickson, MC [1 ]
机构
[1] UNIV GEORGIA, CTR FOOD SAFETY & QUAL ENHANCEMENT, GRIFFIN, GA 30223 USA
关键词
tocopherol; glutathione; ascorbic acid; lipid oxidation; mince;
D O I
10.1021/jf950172t
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Levels of ascorbic acid, alpha- and gamma-tocopherol, glutathione, and volatile aldehydes were monitored over 6 months in frozen minced and intact fillets of channel catfish. For both samples, decline of glutathione occurred at a faster rate than that of ascorbic acid which in turn was faster than decline of a-tocopherol. Loss of a-tocopherol and formation of volatile aldehydes in mince were either similar or slightly less than in intact fillets throughout storage. gamma-Tocopherol levels increased significantly during initial stages of storage and then declined for both-mince and intact fillets. Ascorbic acid and glutathione levels in mince, on the other hand, decreased faster than levels in intact fillets during early stages of storage. It is conjectured that any enhancement of oxidation which might have been generated through tissue disruption is balanced either by enhancement of ascorbic acid or glutathione's antioxidant activity or by enhancement of some other unmeasured antioxidant system such as phospholipase. The possibility also exists that tissue levels of ascorbic acid and glutathione are insufficient to have a noticeable effect on the oxidation of lipids.
引用
收藏
页码:1361 / 1366
页数:6
相关论文
共 33 条
[1]   A RAPID METHOD FOR DETERMINING THE OXIDATION OF N-3 FATTY-ACIDS [J].
BOYD, LC ;
KING, MF ;
SHELDON, B .
JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1992, 69 (04) :325-330
[2]   THE PECKING ORDER OF FREE-RADICALS AND ANTIOXIDANTS - LIPID-PEROXIDATION, ALPHA-TOCOPHEROL, AND ASCORBATE [J].
BUETTNER, GR .
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS, 1993, 300 (02) :535-543
[3]   LIPID AND TOCOPHEROL COMPOSITION OF FARM-RAISED STRIPED AND HYBRID STRIPED BASS [J].
ERICKSON, MC .
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY, 1992, 101 (01) :171-176
[4]   COMPOSITIONAL PARAMETERS AND THEIR RELATIONSHIP TO OXIDATIVE STABILITY OF CHANNEL CATFISH [J].
ERICKSON, MC .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1993, 41 (08) :1213-1218
[5]   VARIATION OF LIPID AND TOCOPHEROL COMPOSITION IN 3 STRAINS OF CHANNEL CATFISH (ICTALURUS-PUNCTATUS) [J].
ERICKSON, MC .
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE, 1992, 59 (04) :529-536
[6]  
ERICKSON MC, 1992, ACS SYM SER, V500, P344
[7]   LIPID-PEROXIDATION AND CHEMICAL-CHANGES IN CATFISH (ICTALURUS-PUNCTATUS) MUSCLE MICROSOMES DURING FROZEN STORAGE [J].
EUN, JB ;
BOYLE, JA ;
HEARNSBERGER, JO .
JOURNAL OF FOOD SCIENCE, 1994, 59 (02) :251-255
[8]  
Flick G.J., 1990, THE SEAFOOD IND, P117
[9]  
Gatlin D. M. Iii, 1993, Aquaculture and Fisheries Management, V24, P457, DOI 10.1111/j.1365-2109.1993.tb00620.x
[10]   EFFECTS OF DIETARY VITAMIN-E AND SYNTHETIC ANTIOXIDANTS ON COMPOSITION AND STORAGE QUALITY OF CHANNEL CATFISH, ICTALURUS-PUNCTATUS [J].
GATLIN, DM ;
BAI, SC ;
ERICKSON, MC .
AQUACULTURE, 1992, 106 (3-4) :323-332