| Abstract: |
Papain hydrolysis of camel whey protein (CWP) produced CWP hydrolysate (CWPH).
Fractionation of CWPH by the size exclusion chromatography (SEC) generated fractions (i.e., SECF1 and SEC-F2). The angiotensin- converting- enzyme inhibitory activity (ACE-IA) and free radical
scavenging actions were assessed for CWP, CWPH, SEC-F1, and SEC-F2. The SEC-F2 exerted the
highest ACE-IA and scavenging activities, followed by CWPH. The protective effects of CWPH on
thioacetamide (TAA)-induced toxicity were investigated in rats. The liver enzymes, protein profile,
lipid profile, antioxidant enzyme activities, renal functions, and liver histopathological changes
were assessed. Animals with TAA toxicity showed impaired hepatorenal functions, hyperlipidemia, and decreased antioxidant capacity. Treatment by CWPH counteracted the TAA-induced
oxidative tissue damage as well as preserved the renal and liver functions, the antioxidative enzyme
activities, and the lipid profile, compared to the untreated animals. The current findings demonstrate that the ACE-IA and antioxidative effects of CWPH and its SEC-F2 fraction are worth noting.
In addition, the CWPH antioxidative properties counteracted the toxic hepatorenal dysfunctions. It
is concluded that the hydrolysis of CWP generates a wide range of bioactive peptides with potent
antihypertensive, antioxidant, and hepatorenal protective properties. This opens up new prospects
for the therapeutic utilization of CWPH and its fractions in the treatment of oxidative stress-associated health problems, e.g., hypertension and hepatorenal failure.
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