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Inhibitory effect of leaves extracts of Ocimum basilicum and Ocimum gratissimum on two key enzymes involved in obesity and hypertension in vitro .
Journal of Intercultural Ethnopharmacology 2016 September
AIM: To evaluate the phenolics composition and inhibitory effect of the leaves extracts of Ocimum basilicum and Ocimum gratissimum on two key enzymes (pancreatic lipase [PL] and angiotensin 1-converting enzyme [ACE]) involved in obesity and hypertension in vitro .
MATERIALS AND METHODS: The phenolics (flavonoids and phenolic acids) were quantified using high-performance liquid chromatography coupled with diode array detection. PL and ACE inhibitory effects; DPPH* and ABTS*+ scavenging activities of the extracts were tested using spectrophotometric methods.
RESULTS: O. basilicum had the following major phenolics: Rutin, quercetin, and quercitrin (flavonoids); caffeic, chlorogenic, and gallic acids (phenolic acids); while O. gratissimum had the following major phenolics: Rutin, quercitrin, and luteolin (flavonoids); ellagic and chlorogenic acids (phenolic acids). "Extracts of both plants inhibited PL and ACE; scavenged DPPH* in a dose-dependent manner". O. gratissimum extract was more potent in inhibiting PL (IC50: 20.69 µg/mL) and ACE (IC50: 29.44 µg/mL) than O. basilicum (IC50: 52.14 µg/mL and IC50: 64.99 µg/mL, against PL and ACE, respectively). O. gratissimum also scavenged DPPH* and ABTS*+ more than O. basilicum .
CONCLUSION: O. basilicum and O. gratissimum leaves could be used as functional foods for the management of obesity and obesity-related hypertension. However, O. gratissimum may be more effective than O. basilicum .
MATERIALS AND METHODS: The phenolics (flavonoids and phenolic acids) were quantified using high-performance liquid chromatography coupled with diode array detection. PL and ACE inhibitory effects; DPPH* and ABTS*+ scavenging activities of the extracts were tested using spectrophotometric methods.
RESULTS: O. basilicum had the following major phenolics: Rutin, quercetin, and quercitrin (flavonoids); caffeic, chlorogenic, and gallic acids (phenolic acids); while O. gratissimum had the following major phenolics: Rutin, quercitrin, and luteolin (flavonoids); ellagic and chlorogenic acids (phenolic acids). "Extracts of both plants inhibited PL and ACE; scavenged DPPH* in a dose-dependent manner". O. gratissimum extract was more potent in inhibiting PL (IC50: 20.69 µg/mL) and ACE (IC50: 29.44 µg/mL) than O. basilicum (IC50: 52.14 µg/mL and IC50: 64.99 µg/mL, against PL and ACE, respectively). O. gratissimum also scavenged DPPH* and ABTS*+ more than O. basilicum .
CONCLUSION: O. basilicum and O. gratissimum leaves could be used as functional foods for the management of obesity and obesity-related hypertension. However, O. gratissimum may be more effective than O. basilicum .
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