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http://dx.doi.org/10.5851/kosfa.2014.34.3.297

Characterization of Edible Pork By-products by Means of Yield and Nutritional Composition  

Seong, Pil Nam (Animal Products and Processing Division, National Institute of Animal Science)
Park, Kuyng Mi (Animal Products and Processing Division, National Institute of Animal Science)
Cho, Soo Hyun (Animal Products and Processing Division, National Institute of Animal Science)
Kang, Sun Moon (Animal Products and Processing Division, National Institute of Animal Science)
Kang, Geun Ho (Animal Products and Processing Division, National Institute of Animal Science)
Park, Beom Young (Animal Products and Processing Division, National Institute of Animal Science)
Moon, Sung Sil (Sunjin Meat Research Center)
Ba, Hoa Van (Animal Products and Processing Division, National Institute of Animal Science)
Publication Information
Food Science of Animal Resources / v.34, no.3, 2014 , pp. 297-306 More about this Journal
Abstract
Basic information regarding the yield and nutritional composition of edible pork by-products, namely heart, liver, lung, stomach, spleen, uterus, pancreas, and small and large intestines, was studied. Our results revealed that the yields varied widely among the pork by-products examined; in particular, liver had the highest yield (1.35%); whereas, spleen had the lowest yield (0.16%). The approximate composition range (minimum to maximum) of these by-products was found to be: moisture 71.59-82.48%; fat 0.28-19.54%; ash 0.155-1.34%, and protein 8.45-22.05%. The highest protein, vitamin A, B2, B6, and total essential amino acid (EAA) contents were found in liver. Large intestine had the highest fat content and lowest EAA content. Heart had the highest vitamin B1 content, whereas pancreas had the highest niacin and vitamin B3 contents. The concentrations of Fe and Zn were highest in liver and pancreas. Total saturated fatty acids (SFA) levels and polyunsaturated fatty acids (PUFA) levels between the by-products ranged from 43.15-50.48%, and 14.92-30.16%, respectively. Furthermore, with the exception of large intestine, all the by-products showed favorable PUFA/SFA ratios. The study indicated that almost all of the pork by-products examined were good sources of important nutrients, and that these data will be of great importance in the promotion of the consumption of edible pork by-products, as well as their utilization in meat processing.
Keywords
pork by-product; mineral; vitamin; amino acid; fatty acid;
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