Nabiha Bouzouita

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The aim of the study is to establish some nutritional properties of garlic cultivated in Tunisia and to evaluate the antioxidant and the antimicrobial activites of its essential oil and ethanol extract. Tunisian garlic (Allium sativum) was characterized for moisture, ash and protein contents which were determined as 66%, 1.4% and 5.2% respectively. In(More)
An investigation on the presence of mycotoxin patulin was performed on 71 apple juices and concentrates and 21 infant fruit purees purchased from retail outlets or producers in Tunisia, by reversed-phase high-performance liquid chromatography using a C18 column with UV detection at 276 nm, keeping the recovery higher than 96% for spiking levels ranging(More)
A phytochemical investigation of Diplotaxis virgata D.C. and D. erucoides (L.) D.C. (Brassicaceae) offered to the isolation of two new flavonoids isorhamnetin-3-O-α-l-glucopyranoside (1) and rhamnetin-3,3'-di-O-β-d-glucopyranoside (2), respectively. Their structures have been elucidated from the extended spectroscopic methods, including 1D- and 2D-NMR, UV(More)
The essential oils of the two Eucalyptus species (Namely: Eucalyptus camaldulensis and Eucalyptus rudis) were obtained by hydrodistillation, and their analyses were performed by GC and GC/MS. A total of 26 different compounds were identified. Spathulenol, 1, 8-Cineole, and ρ-Cymene were the main components. The most active antibacterial essential oil is E.(More)
A water soluble humic acid and melanin-like polymer complex (OMWW-ASP) was isolated from olive mill waste waters (OMWW) by ammonium sulfate fractionation to be used as natural additive in food preparations. The dark polymer complex was further characterized by a variety of biochemical, physicochemical and spectroscopic techniques. OMWW-ASP is composed(More)
The glucosinolate profiles, phenol and flavonoid contents and the antioxidant activity of Eruca vesicaria longirostris were studied for different organs and origins. Eleven desulpho-glucosinolates (DS-GLSs) were isolated and quantified by lipid chromatographyDAD. Similarity between profiles was obtained. Total DS-GLS content, expressed as sinigrin(More)
Aqueous-methanol extracts prepared from 10 Tunisian plant species were analyzed for the presence of potent direct antioxidants. The analyzed species included: Anacyclus clavatus Desf., Erica multiflora L., Cistus salvifolius L., Centaurium erythraea Rafn., Marrubium vulgare L., Lavandula stoechas L., Artemisia campestris L., Origanum majorana L., Salvia(More)
In this study, we compared the chemical composition and antioxidant activities of essential oils and ethanol extracts from Myrtus communis L. berries, leaves, and floral buds. The chemical composition of essential oils was analysed using gaz chromatography (GC) and gaz chromatography coupled to mass spectrometry (GC-MS). The oils comprised mainly(More)
Different extracts from myrtle berries were obtained using alcohol-water mixtures as an extraction medium in the range of 60-90% (v/v) to study the extraction efficiency in the preparation of myrtle liqueur. Flavonoids and anthocyanins were identified by high-performance liquid chromatography (HPLC) coupled with electrospray mass spectrometry and quantified(More)
The potential of fibre concentrate from artichoke stem by-product in bakery application was investigated. The elaboration of fibre concentrate was characterized by an extraction yield of 48.5%. The chemical composition showed high total dietary fibre (85 g/100 g d.m) and low lipid contents (0.5 g/100 g d.m). The fibre concentrate showed good water holding(More)
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