Effects of Chlortetracycline, Inedible Animal Fat, Stilbestrol and High and Low Quality Roughage on Performance of Yearling Steers

1956 ◽  
Vol 15 (3) ◽  
pp. 710-716 ◽  
Author(s):  
E. S. Erwin ◽  
I. A. Dyer ◽  
M. E. Ensminger
Keyword(s):  

The quality, safety, and suitability of animal fat for processing of a specific meat product is a critical issue. Increasing the human awareness about the health aspects associated with increased intake of animal fat, makes camel fat a suitable raw material for meat processing due to its excellent nutritional contribution. Therefore, the target of this study is examination of the sensory, physicochemical, fat oxidation, fatty acid profile, and other quality parameters of camel fat to evaluate the feasibility for processing of different meat products. To achieve this goal, 30 fat samples each from the hump, renal, and mesentery of Arabian male camels were investigated. The results showed that both the renal and mesenteric fat had honey color and medium-soft texture, while the hump had greyish-white color and hard texture. The sensory panel scores were significantly different between the hump and other fats. Hump fat had significantly (P<0.05) higher moisture, protein, and collagen content, while higher fat content was recorded in mesenteric fat. The fatty acid analysis showed that hump had high SFA and very low PUFA in comparison with both renal and mesenteric fat. Camel fat had high oxidation stability, and the mean values were very low in comparison with the levels of quality and acceptability. The ultrastructural analysis showed that hump fat had high elastin fibers which increase its hardness. The results indicated that both renal and mesenteric fat were more suitable for the production of various meat products than the hump.


Author(s):  
Milica Jovanovic ◽  
Sigurd Schober ◽  
Martin Mittelbach

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 194
Author(s):  
Hui Khim Ooi ◽  
Xin Ning Koh ◽  
Hwai Chyuan Ong ◽  
Hwei Voon Lee ◽  
Mohd Sufri Mastuli ◽  
...  

The dwindling of global petroleum deposits and worsening environmental issues have triggered researchers to find an alternative energy such as biodiesel. Biodiesel can be produced via transesterification of vegetable oil or animal fat with alcohol in the presence of a catalyst. A heterogeneous catalyst at an economical price has been studied widely for biodiesel production. It was noted that various types of natural waste shell are a potential calcium resource for generation of bio-based CaO, with comparable chemical characteristics, that greatly enhance the transesterification activity. However, CaO catalyzed transesterification is limited in its stability and studies have shown deterioration of catalytic reactivity when the catalyst is reused for several cycles. For this reason, different approaches are reviewed in the present study, which focuses on modification of waste-shell derived CaO based catalyst with the aim of better transesterification reactivity and high reusability of the catalyst for biodiesel production. The catalyst stability and leaching profile of the modified waste shell derived CaO is discussed. In addition, a critical discussion of the structure, composition of the waste shell, mechanism of CaO catalyzed reaction, recent progress in biodiesel reactor systems and challenges in the industrial sector are also included in this review.


Fuel ◽  
2012 ◽  
Vol 94 ◽  
pp. 262-269 ◽  
Author(s):  
Bernd Weber ◽  
Ernst A. Stadlbauer ◽  
Sabrina Stengl ◽  
Mohammad Hossain ◽  
Andreas Frank ◽  
...  

Author(s):  
Héctor de Paz Carmona ◽  
Aleš Vráblík ◽  
José Miguel Hidalgo Herrador ◽  
Romana Velvarská ◽  
Radek Černý
Keyword(s):  
Gas Oil ◽  

Effects of animal fat addition in hydrotreated gas oil.


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