The antimicrobial activity against fish bacterial pathogens of flavonoids (morin, morin-3-O-lyxoside, morin-3-O-arabinoside, quercetin, and quercetin-3-O-arabinoside) isolated from the leaves of Psidium guajava was evaluated. The flavonoids were shown to have bacteriostatic effect on all of the tested bacteria.

BACKGROUND & OBJECTIVE This study was undertaken to evaluate the glycaemic potential of aqueous extract of Psidium guajava unripe fruit peel on blood glucose level (BGL) of normal and streptozotocin induced mild and severely diabetic rats as an extension of our previous work carried out on Psidium guajava ripe fruit peel. METHODS The aqueous extract of P. guajava unripe fruits was prepared. M...

The aim of this study was to evaluate quantitatively the antimicrobial and antioxidant potentials of the leaves extracts of Guava (Psidium guajava Linn.),belonging to the Myrtaceae family. The plant samples were collected from Tajoura eastern part of Tripoli in Libya. Methanol and water were used as solvents in the extraction. The phytochemical screening showed that the ethanolic and aqueous ex...

The present study investigated the protective effect of the ethanolic extract of Psidium guajava L. against tacrine-induced orofacial dyskinesia in rats. Behavioral assessments such as vacuous chewing movements, tongue protrusions, orofacial bursts, locomotion, and cognition were recorded. Forebrain of tacrine treated animals was assessed for its antioxidant levels. P. guajava (100 and 200 mg/k...

The essential oil from the leaves of Psidium guajava, collected from Kathmandu, Nepal, was obtained by hydrodistillation and analyzed by GC-MS. A total of 53 compounds were identified, accounting for 100% of the oil composition. The major components of the essential oil were (E)-nerolidol (35.6%) and (E)-caryophyllene (15.8%), with lower concentrations of (2Z,6E)-farnesol (6.7%), and ledol (5.5...

Background Plant-based natural extracts cure several diseases in human. However, the extract of Psidium guajava leaf is not yet evaluated on changes of lipid profile in hepatic disease affected rats. Objective The present study was aimed to evaluate the mitigation effect of the ethanolic extract of P. guajava leaf and its isolated quercetin fraction on hepatotoxic rats. Materials and Method...

Healthy Albino Rats (Wister variety) of either sex are reared feeding on pulses, gram and bread. After acclimatization these are divided into one normal-control and three experimental groups. Alcoholic hepatitis is induced in two of the experimental groups by oral administration of 30% ethanol for eight weeks. Oral administration of water-extract of Psidium guajava leaves is done to one non-alc...

Cancer is a complex disease caused by a progressive accumulation of multiple genetic mutations. Consumption of fruits is associated with lower risk of several cancers, which is mainly associated to their phytochemical content. The use of functional foods and chemopreventive compounds seems to contribute in this process, acting by mechanisms of antioxidant, anti-inflammatory, anti-angiogenic and...

This work evaluated the physicochemical properties and antioxidant activity of spray dried extracts (SDE) from Psidium guajava L. leaves. Different drying carriers, namely, maltodextrin, colloidal silicon dioxide, Arabic gum, and β -cyclodextrin at concentrations of 40 and 80% relative to solids content, were added to drying composition. SDE were characterized through determination of the total...

Leaf extract of guava (Psidium guajava Linn.) has been reported to promote wound healing in traditional medicine but there is paucity of information in literature regarding similar activity of fruit extract. Therefore, the present study was planned to investigate the influence of leaf and fruit extract of Psidium guajava Linn. on re-sutured incision, excision, and dead space wounds in male Wist...