Journal
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
Volume 98, Issue 6, Pages 2131-2137Publisher
WILEY
DOI: 10.1002/jsfa.8697
Keywords
amino acids; crude protein; digestible indispensable amino acid score; hydrolyzate; standardized ileal digestibility
Funding
- Fund for Green Business Development
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BACKGROUNDThe use of protein hydrolyzates in food and feed ingredients is a growing area of interest. The present study was conducted aiming to determine the standardized ileal digestibility (SID) and to evaluate protein quality of porcine and bovine hydrolyzates. The SID values were determined in pigs and these values were used to calculate digestible indispensable amino acid score (DIAAS) values. RESULTSThe SID of crude protein of hydrolyzates of porcine plasma, bovine muscle, bovine collagen, porcine heart and porcine muscle was 0.81, 0.84, 0.79, 0.79 and 0.91, respectively. Based on the DIAAS, hydrolyzates of porcine plasma and porcine heart (DIAAS = 87 and 76) are considered as good quality protein sources for younger children. For older children, adolescents and adults, the hydrolyzates of bovine muscle and porcine heart (DIAAS = 81 and 87) are considered as good quality protein sources and the hydrolyzate of porcine plasma (DIAAS = 102) is considered as a high quality protein source. CONCLUSIONDIAAS values indicate that the porcine and bovine hydrolyzates tested in the present study have low and medium to high protein values and also that the protein products can be included in human nutrition. (c) 2017 Society of Chemical Industry
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