Enzymatic treatment of whey proteins for the production of...

Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase

Reexamination Certificate

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C435S068100, C514S002600

Reexamination Certificate

active

06998259

ABSTRACT:
Enzymatic digests of whey protein concentrates were prepared using animal, bacterial and fungal proteases, and evaluated for antihypertensive activities. The highest ACE-inhibitory activity was obtained with the purified peptide β-1g (f142–148) obtained by chemical synthesis, for which an IC50value of 0.04 mg powder.ml−1was found. The hydrolysates derived from BiPRO™ whey protein isolate and β-1g both gave higher antihypertensive activities (IC50values of 0.29 to 0.90 mg powder.ml−1) than the other hydrolysates tested (IC50values of 0.96 and 1.30 mg powder.ml−1). The recovered hydrolysate can be used to treat hypertension in mammals such as humans and domestic pets such as dogs and cats.

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