Zein G N, el-Bedawey A E, el-Sherbiney A M, Dawoud F M
Nahrung. 1985;29(5):523-32. doi: 10.1002/food.19850290530.
Fish protein concentrate (FPC) from river Nile bolti fish (Tilapia nilotica) was prepared and compared with commercial FPC and fresh bolti fish flesh. Fish meal (FM) from bolti fish offals was prepared and compared with commercial FM and also fresh bolti fish flesh. FPC from bolti fish showed a higher crude protein content but less fat, ash, calcium and sand than the commercial sample, while FM from bolti fish showed a higher content of ash and phosphorus than commercial FM but was nearly similar in crude protein, fat, calcium and sodium chloride. FPC from bolti fish had a higher content of lysine, arginine, aspartic acid, glycine and glutamic acid and a lower content of the other free amino acids. The bolti fish FM had a lower content of total amino acids and the contents of the free amino acids cysteine, glycine, aspartic acid, serine, alanine, valine, and methionine increased slightly. The yield was 12% for FPC and 19.5% for FM. Coliform bacteria were not present in both FPC and FM from bolti fish. Low moisture contents of FPC and FM were essential for preventing microbiol growth and to attain a good keeping quality. The FPC and FM from bolti fish reached moisture equilibrium and stopped increasing in weight within 144 to 192 h.
制备了尼罗罗非鱼（尼罗口孵非鲫）的鱼蛋白浓缩物（FPC），并将其与市售FPC和新鲜尼罗罗非鱼肉进行比较。制备了尼罗罗非鱼内脏的鱼粉（FM），并将其与市售FM以及新鲜尼罗罗非鱼肉进行比较。尼罗罗非鱼的FPC粗蛋白含量较高，但脂肪、灰分、钙和沙子含量低于市售样品，而尼罗罗非鱼的FM灰分和磷含量高于市售FM，但粗蛋白、脂肪、钙和氯化钠含量几乎相似。尼罗罗非鱼的FPC赖氨酸、精氨酸、天冬氨酸、甘氨酸和谷氨酸含量较高，其他游离氨基酸含量较低。尼罗罗非鱼的FM总氨基酸含量较低，游离氨基酸半胱氨酸、甘氨酸、天冬氨酸、丝氨酸、丙氨酸、缬氨酸和蛋氨酸的含量略有增加。FPC的产率为12%，FM的产率为19.5%。尼罗罗非鱼的FPC和FM中均未检测到大肠菌群。FPC和FM的低水分含量对于防止微生物生长和保持良好的储存品质至关重要。尼罗罗非鱼的FPC和FM在144至192小时内达到水分平衡，重量不再增加。
