Whey alone 4 hours to reach maximum total
serum amino acids levels, which increased about 30% from baseline (from
1.71mg/L to 2.22mg/L).
After proteolytic enzymes (in this case, Aspergillus niger and Aspergillus oryzae) were
added.
One group drank whey along with 2.5 grams of enzymes and their amino acid levels were 110% higher after 4 hours.
The second group drank the same amount of
whey along with 5 grams of enzymes and their levels were 127% higher after
hours.
Source:
Oben J, Kothari SC & Anderson; ML. An open label study to determine the effects of an oral proteolytic enzyme on whey protein concentrate metabolism in healthy males JISSN 2008 5(10).
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