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Showing papers by "Rivers State University of Science and Technology published in 1983"


Journal ArticleDOI
TL;DR: The peels of mango and African apple, which are normally discarded by the natives, contained higher contents of ascorbic acid than the edible portion.
Abstract: Ascorbic acid contents of some common local fruits and vegetables was determined. The ascorbic acid contents of the fruits ranged from 21.8 to 98.0 mg per 100 g sample while that of vegetables ranged from 21.3 to 98.8 mg per 100 g sample. The traditional processing of some of the fruits resulted in losses of ascorbic acid of between 43 and 58%. The traditional processing of the vegetables also resulted in losses of ascorbic acid of between 32 to 68%. On environmental exposure (storage) in the shade (27°C) for four hours the losses ranged from 22 to 34%. The peels of mango and African apple, which are normally discarded by the natives, contained higher contents of ascorbic acid than the edible portion.

49 citations


Journal ArticleDOI
TL;DR: In general, rats given the various forms of the oil seed lost weight, resulting in a negative PER and FCE and there was a consistent improvement in the performance of rats when samples were heat-treated and better improvement when fermented.
Abstract: A study was made of the protein quality of raw, heat processed and fermented African oil bean seed (Pentaclethra macrophylla). Rats given fermented seeds consumed more food than rats given heat-treated seeds which, in turn, consumed more food than rats given the raw seeds. Fermentation and heat treatment improved apparent digestibility, feed conversion efficiency (FCE) and protein efficiency ratio (PER). In general, rats given the various forms of the oil seed lost weight, resulting in a negative PER and FCE. There was, however, a consistent improvement in the performance of rats when samples were heat-treated and better improvement when fermented. The probable reason for the poor performance is discussed.

25 citations


Journal ArticleDOI
TL;DR: In this paper, three oil bearing seeds grown in Nigeria were found to contain saponins, i.e., African oil bean seed (Pentaclethra macrophylla), rubber seed (Rubber seed), and Mucuna uriens.
Abstract: Three oil bearing seeds grown in Nigeria were found to contain saponins. The oil seeds, African oil bean seed (Pentaclethra macrophylla) rubber seed (Havea brasilienses), andMucuna uriens were defatted and saponin fractions extracted with 20% aqueous ethanol. Saponins obtained after extraction were 2.1% for African oil bean seed, 1.8% for rubber seed, and 2.1% forMucuna. These figures were similar to that of defatted soyabean with 2.4%. Results are discussed in relation to the possible beneficial or detrimental effects of saponins to man or animals that may consume these oil seeds.

16 citations


Journal ArticleDOI
TL;DR: The following paper indicates that food allergies must also be taken into account in nutrition advice in developing countries.
Abstract: The frequency of food allergies is not sufficiently appreciated because they are difficult to investigate. This is because the reactions are subjective and hard to verify. Almost all of the reported prevalence rates are from industrialized countries, and they vary from four to 30 per cent. The following paper indicates that food allergies must also be taken into account in nutrition advice in developing countries.

5 citations