منابع مشابه
Trace Metal Dynamics in Some Leafy Vegetables Consumed in Warri, Niger Delta Region of Nigeria
Five common and widely consumed Nigerian leafy vegetables Talinumtriangulare (waterleaf), Amaranthusviridis(African spinach), Ocimumgratissimum(scent leaf), Vernoniaamygdalina (bitterleaf) and Telferiaoccidentalis(pumpkin leaf) collected from Ekpan around the Nigerian National Petroleum Corporation (NNPC) refinery were digested and analyzed for trace metal distribution in the leaves and roots u...
متن کاملPerchlorate and nitrate in leafy vegetables of North America.
In previous studies trace levels of perchlorate were found in lettuce (Lactuca sativa L.) irrigated with Colorado River water, which is contaminated with low levels of perchlorate from aerospace and defense related industries. In this paper, we report the results of a survey conducted across North America to evaluate the occurrence of perchlorate in leafy vegetables produced outside the lower C...
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Amount of polyphenols, flavonoids, anthocyanins in ethanol extracts and antioxidant activity of both ethanol and lipophilic extracts of common leafy vegetables in Bangladesh were compared. Among the 12 leafy vegetables, Ipomoea aquatica Forssk. showed the highest content of total polyphenols (38.9 mg gallic acid equivalent (GAE)/g extract) and flavonoids (23.2 mg (+)-catechin equivalent (CE)/g ...
متن کاملNitrate accumulation in leafy vegetables and its relationship with water
Present studies show that nitrate accumulation is the major factor influencing the water uptake by vegetables, but there is lack of knowledge on how the relationship between nitrate and water concentrations in different vegetable tissues. We determined nitrate accumulation and water content in vegetables of rape, Chinese cabbage, and spinach under different nitrogen levels (experiment I), 29 sp...
متن کاملNitrate in Leafy Green Vegetables and Estimated Intake
BACKGROUND Vegetarian diets are rich in vegetables. Green leafy vegetables are foods that contain considerable amounts of nitrate, which can have both positive and negative effects on the human body. Their potential carcinogenicity and toxicity have been proven, particularly after the reduction of nitrate to nitrite itself or just serving as a reactant with amines and/or amides in the formation...
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ژورنال
عنوان ژورنال: Pakistan Journal of Nutrition
سال: 2009
ISSN: 1680-5194
DOI: 10.3923/pjn.2010.91.92