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Featured researches published by Vandita Singh.


Asian Pacific Journal of Cancer Prevention | 2013

Nabag (Zizyphus spina-christi) extract prevents aberrant crypt foci development in colons of azoxymethane-treated rats by abrogating oxidative stress and inducing apoptosis.

Nejib Guizani; Mostafa I. Waly; Vandita Singh; Mohammad Shafiur Rahman

Zizyphus spina-christi (ZSC) fruit is a rich source of bioactive compounds but any medicinal properties in chemoprevention of colon cancer have hitherto not been studied. The aim of the present study was to examine in vivo protective effects of ZSC water extract on colon carcinogenesis in azoxymethane (AOM)-treated rats. Our results showed that ZSC significantly reduced AOM-induced colonic aberrant crypt foci development and AOM-induced oxidative stress as indicated by restoration of endogenous glutathione depletion and abrogating the impairment of total antioxidant capacity. Caspase-3 cleavage, which has been considered as an apoptotic index, was almost undetectable in AOM-treated rats and ZSC exhibited pro-apoptotic effects evidenced by increased levels of cleaved caspase-3. In the studied model, our findings provide the first in vivo evidence that ZSC extract could inhibit the early stage of colon carcinogenesis by preventing oxidative stress and inducing apoptosis.


Polish Journal of Food and Nutrition Sciences | 2014

Chemical Composition of Date-Pits and Its Potential for Developing Value-Added Product - a Review

Mohammad Zakir Hossain; Mostafa I. Waly; Vandita Singh; Venitia Sequeira; Mohammad Shafur Rahman

Abstract Moisture, protein, oil and carbohydrate contents of date-pits varied from 3.1-12.5, 2.3-6.9, 5.0-12.5 and 70.9-86.9 g/100 g date-pits, respectively. BET-monolayer (i.e. strongly bound) moisture content, solids-melting peak (at moisture: 6.7 g/100 g date-pits), and melting point of oil were 4.3 g/100 g dry-solids, 106oC, and 1.8oC, respectively. The major fatty acids were lauric, myristic, palmitic, stearic, oleic, and linoleic acids and polyphenol content varied from 21.0-62.0 mg/g date-pits depending on the varieties, types of solvent and temperature used for extraction. Date-pits showed effectives in animal and poultry feeds and it could be used as value added products, such as: dietary fibres, functional polysaccharides, caffeine-free drinks (similar to coffee), oil (biofuel or cooking oil), and other functional or medicinal products. Date-pits powder and activated carbon from date–pits showed effective in purifying water by removing different types of pollutants, such as heavy metals, boron, dyes, phenolic compounds, and pesticides. Date-pits also showed effective to be used as ingredient for composed, biomass, and fermentation processes.


international food research journal | 2012

Comparative analysis of total phenolics flavonoid content and antioxidant profile of different date varieties (Phoenix dactylifera L.) from Sultanate of Oman

Vandita Singh; Nejib Guizani; Musthafa Mohamed Essa; F. L. Hakkim; Mohammad Shafiur Rahman


Industrial Crops and Products | 2013

Instrumental texture profile analysis (TPA) of date fruits as a function of its physico-chemical properties

Vandita Singh; Nejib Guizani; Ahmed Al-Alawi; Michel R. Claereboudt; Mohammad Shafiur Rahman


Biotechnology(faisalabad) | 2012

In vitro antioxidant activities of Ziziphus spina-christi Fruits (red date) grown in Oman

Vandita Singh; Nejib Guizani; Musthafa Mohamed Essa; Mohamed Shafiur Rahman; Subash Selvaraju


Food Science and Technology Research | 2013

Instrumental texture profile analysis of date-tamarind fruit leather with different types of hydrocolloids

Karima Zahir Al-Hinai; Nejib Guizani; Vandita Singh; Mohammad Shafiur Rahman; Lyutha Al-Subhi


Archive | 2012

Omega 3 fatty acids and its potential health benefits

Nejib Guizani; Mohamed M. Essa; Z. Al-Kharousi; Vandita Singh; B. Soussi; Gilles J. Guillemin


Archive | 2012

Mango (Mangifera indica linn.) and its health benefits

Vandita Singh; Mohamed M. Essa; Mostafa I. Waly; Amanat Ali; Nejib Guizani; Gilles J. Guillemin


Oriental Pharmacy and Experimental Medicine | 2016

Identification by SEM and screening of antibacterial and antioxidant activity of Pteropyrum Scoparium Jaub & Spach Leaves using green solvent extracts

Hakikulla Shah; Mohammad Sadat Ali; Fatima Al-Malki; Nejib Guizani; Philip Fletcher; Vandita Singh


Acta Alimentaria | 2015

Sensory texture of date fruits as a function of physicochemical properties and its use in date classification

Vandita Singh; N. Guizani; I. Al-Zakwani; Q. Al-Shamsi; A. Al-Alawi; M.S. Rahman

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Nejib Guizani

Sultan Qaboos University

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Ahmed Al-Alawi

Sultan Qaboos University

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