Ruiz-Capillas C, Moral A
Department of Science and Technology of Meat and Fish Products, Instituto del Frío, CSIC, University of Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
Amino Acids. 2004 Mar;26(2):125-32. doi: 10.1007/s00726-003-0054-4. Epub 2003 Dec 15.
This paper analyses the presence of and changes in free amino acids and biogenic amines in red and white muscle of bigeye tuna during storage in controlled atmospheres with 2 gas mixes containing different concentrations of CO(2) and O(2). Levels of amines were generally higher in white than in red muscle, with the exception of putrescine and spermidine. Levels of biogenic amines increased (p<0.05) throughout storage, commencing later in red than in white muscle. A correlation between the amino acid histidine and the biogenic amine histamine was observed, but only in white muscle. Only in the case of tryptophan did white and red muscle differ (p<0.05) in terms of essential free amino acid content. They also differed in anserine content. Concentrations of the non-essential FAAs glutamic acid, glycine and alanine were higher in red than in white muscle. The effectiveness of the atmospheres was reflected in the evolution of both biogenic amines and FAAs. Gas mix 1, containing a higher concentration of CO(2), was the more effective.
本文分析了大眼金枪鱼的红肌和白肌在含有不同浓度CO₂和O₂的两种气体混合物的控制气氛中储存期间游离氨基酸和生物胺的存在情况及变化。除腐胺和亚精胺外，白肌中的胺类水平通常高于红肌。生物胺水平在整个储存过程中均有所增加（p<0.05），红肌中开始增加的时间比白肌晚。观察到氨基酸组氨酸与生物胺组胺之间存在相关性，但仅在白肌中存在。仅在色氨酸方面，白肌和红肌在必需游离氨基酸含量上存在差异（p<0.05）。它们在肌肽含量上也存在差异。非必需氨基酸谷氨酸、甘氨酸和丙氨酸的浓度在红肌中高于白肌。气氛的有效性反映在生物胺和游离氨基酸的变化中。含有较高浓度CO₂的气体混合物1更有效。
