The Gannan Oula Tibetan sheep offals (heart, liver, lung and stomach) were used as research objects to determine the moisture, ash, protein, fat, amino acid and fatty acid content in accordance with National standard, and to carry out nutritional evaluation. The results showed that the moisture content in the stomach was about 82.68%, which was significantly higher than that of other organs (P<0.05), and the ash content was the lowest (about 0.33%). The protein content in liver was the highest (about 16.99%), while the fat content was about 3.29%. In addition, the fat content in heart was about 4.45%, which was significantly higher than that of other organs (P<0.05), indicating that the liver was more in line with the characteristics of high protein and low fat. The ratio of saturated fatty acids to unsaturated fatty acids (U/S) in heart, liver, lung and stomach was 0.69, 0.85, 1.66 and 0.90, respectively. The composition ratio of fatty acids in the stomach was closer to the recommended ratio of the Nutrition Society (1∶1). The essential amino acids/total amino acids (EAA/TAA) in heart, liver, lung and stomach were 40.7%, 42.7%, 35.7% and 32.6%, respectively, and the essential amino acid indices (EAAI) were 68.27, 64.65, 42.35 and 64.30, respectively. The heart was closer to the EAAI of standard protein. In short, Oula Tibetan sheep organs has certain development potential and research significance.
WANG Jianzhong
,
SHI Xixiong
,
LI Xueru
,
YU Qunli
,
TIAN Zhu
. Determination and nutritional evaluation of fatty acids and amino acids in offals of Gannan Oula Tibetan sheep[J]. Food and Fermentation Industries, 2019
, 45(20)
: 256
-261
.
DOI: 10.13995/j.cnki.11-1802/ts.021213
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