Brazilian Journal of Biological Sciences (ISSN 2358-2731)

Home Archive v. 5, no. 10 (2018) Ogunka-Nnoka


Vol. 5, No. 10, p. 265-275 - Aug. 31, 2018


Nutritional profiling of garden egg stalk Solanum macrocarpum L. (Solanales: Solanaceae)

Charity U. Ogunka-Nnoka and Deborah Ekrika

This study was carried out to evaluate the nutritional properties of Solanum macrocarpum L. (Solanales: Solanaceae) (garden egg) stalk using standard methods. Sulphates and chloride were the most abundant anions while calcium and magnesium were the predominant mineral cations. Results for the proximate composition showed high carbohydrates (27.70%), fibre contents (22.94%), and ash (18.83%) while the phytochemical composition showed higher ribalinidine, catechin, and phenol contents. Vitamin B6, C, A, and B12 were found in higher concentrations, while lysine (9.48 g/100 g), phenylalanine (6.86 g/100 g), leucine (6.59 g/100 g), and arginine (5.66 g/100 g) were the predominant essential amino acids. Results for the free radical scavenging potentials showed higher DPPH, nitric oxide, hydrogen peroxide, and ABTS radical scavenging potentials for the garden egg stalk, while their ferric reducing antioxidant power, superoxide and lipid peroxide scavenging were comparable to the standards used. This study has shown the high nutrient density of the garden egg stalk, thus encouraging its inclusion for dietary uses.

Garden egg stalk; Phytochemicals; Micronutrients, Amino acids; Proteins.


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Agomuo, E.; Amadi, P.; Ogunka-Nnoka, C.; Amadi, B.; Ifeanacho, M.; Njoku, U. Chemical composition of Duranta repens leaf and seed oils. OCL, v. 24, no. 6, p. 1-8, 2017.

Agomuo, E. N.; Amadi, P. U. Nutritional and antioxidant properties of oils from selected bagasse, agricultural residues, and fodders. Journal of American College of Nutrition, 2018.

Ali, A. Proximate and mineral composition of the marchubeh (Asparagus officinalis). World Dairy and Food Science, v. 4, no. 2, p. 142 149, 2009.

Aluko, B. T.; Oloyede, O. I.; Afolayan, A. J. Ployphenolic contents and free radical scavenging potential of extracts from leaves of Ocimum americanum (L.). Parkistan Journal of Biological Sciences, v. 16, no. 1, p. 22-30, 2013.

Amadi, B.; Ogunka-Nnoka, C.; Ogaji, M.; Amadi, P. Nutrient composition and biochemical effects of Cocos nucifera products on alloxan-induced diabetic Wistar rats. International Journal of Medicine, v. 5, no. 2, p. 149-157, 2017.

Amadi, B. A.; Peters, D. E.; Agomuo, E. N.; Amadi, P. U.; Denson, G. O. Nutrient composition of some selected diets of Ijaw people of Bayelsa State. Polish Journal of Natural Sciences, v. 33, no. 1, p. 59-74, 2018.

Asaolu, S. S.; Adefemi, O. S.; Oyakilome, I. G.; Ajibulu, K. E.; Asaolu, M. F. Proximate and mineral composition of Nigerian Leafy Vegetables, Canadian Center of Science and Education. Journal of Food Research, v. 1, no. 3, p. 214-218, 2012.

Bello, S. O.; Muhammad, B. Y.; Gammaniel, K. S.; Abdu-Aguye, I.; Ahmed, H.; Njoku, C. H.; Pindiga, U. H.; Salka, A. M. Preliminary evaluation of the toxicity and some pharmacological properties of the aqueous crude extract of Solanum melongena. Research Journal of Agriculture and Biological Sciences, v. 1, no. 1, p. 1-9, 2005.

Bonsu, K. O.; Fontem, D.A.; Nkansah, G. O.; Iroume, R. N.; Owusu, E. O.; Schippers, R. R. Diversity within the Gboma eggplant (Solanum macrocarpon), an indigenous vegetable from West Africa. Ghana Journal of Horticulture, v. 1, p. 50-58, 2002.

Eze, S. O.; Kanu, C. Q. Assessment of the Phytochemical, Proximate, vitamin and mineral composition of Solanum gilo L. International Research Journal of Pure & Applied Chemistry, v. 5, no. 1, p. 83-90, 2015.

Fontana, L.; Cummings, N. E.; Arriola, A.; Sebastian, I.; Neuman, J. C.; Kasza, I. Decreased consumption of branched-chain amino acids improves metabolic health. Cell Reports, v. 6, p. 520-530, 2016.

Igwe, C. U.; Ibegbulem, C. O.; Nwaogu, L. A.; Ujowundu, C. O.; Okwu, G. N. Calcium, zinc and phytate interrelationships in four lesser-known African seeds processed into food condiments. Journal of Advances in Chemistry, v. 4, no. 2, p. 288-292, 2013.

Ikewuchi, C. C.; Ikewuchi, J. C. Comparative study of the vitamin composition of some common Nigerian medicinal plants. The Pacific Journal of Science and Technology, v. 10, no. 1, p. 367-371, 2009.

Khalesi, S.; Sun, J.; Buys, N.; Jamshidi, A.; Nikbakht-Nasrabadi, E.; Khosravi-Boroujeni, H. Green tea catechins and blood pressure: A systematic review and meta-analysis of randomised controlled trials. European Journal of Nutrition, v. 536, p. 1299-1311, 2014.

Moore, K. J.; Jung, H. G. Lignin and fiber digestion. Journal of Range Management, v. 54, p. 420-430, 2001.

Nwodo, S. C.; Abayomi, C. O.; Eboji, O. K.; Emiloju, O. C.; Arinola, O. K.; Dania, D. I. Proximate and phytochemical analyses of Solanum aethiopicum L. and Solanum macrocarpon L. fruits. Research Journal of Chemical Sciences, v. 1, no. 3, p. 63-71, 2011.

Odetola, A. A.; Iranloye, Y. O.; Akinloye, O. Hypolipidaemic Potentials of Solanum melongena and Solanum gilo on hypercholesterolemic rabbits. Pakistan Journal of Nutrition, v. 3, no. 3, p. 180-187, 2004.

Ogunka-Nnoka, C. U.; Amadi, P. U.; Ikediashi, E. C.; Nchendo, A.; Ugochukwu, P. Nutrient composition of Dacryodes edulis seed and seed coat mixture. Phytochemistry & Bioactives Substances, v. 11, no. 2, p. 81-88, 2017.

Olubunmi, A. O.; Olorunfemi, O.; Akinyeye, R. O. Amino Acid Composition of Ten Commonly Eaten Indigenous Leafy Vegetables of South-West Nigeria. World Journal of Nutrition and Health, v. 3, no. 1, p. 16-21, 2015.

Paolillo, R.; Carratelli, C. R.; Rizzo, A. Effect of resveratrol and quercetin in experimental infection by Salmonella enterica Serovar Typhimurium. International Journal of Immunopharmacology, v. 11, p. 149-156, 2011.

Rama Rao, M. V.; Tara, M. R.; Krishnan, C. K. Colourimetric estimation of tryptophan content of pulses. Journal of Food Science and Technology, v. 11, p. 13-216, 1974.

Ruberto, G.; Barrata, M. T. Antioxidant activity of selected essential oil components in two lipid model system. Food Chemistry, v. 69, p. 167-174, 2000.

Shimada, K.; Fujikawa, K.; Yahara, K.; Nakamura, T. Antioxidative properties of xanthan on the autoxidation of soybean oil in cyclodextrin emulsion. Journal of Agricultural and Food Chemistry, v. 40, p. 945-948, 1992.

Sodamade, A.; Bolaji, O. S.; Owonikoko, A. D. The nutritive value and amino acid characteristics of Solanum aethiopicum leaf protein concentrates. International Journal of Advanced Research in Chemical Science, v. 2, no. 6, p. 28-33, 2015.

Sutharsingh, D. C. R.; Kavimani, S.; Jayakar, B.; Uvarani, M.; Thangathirupathi, A. Quantitative phytochemical estimation and antioxidant studies on aerial parts of Naravelia zeylanica DC. International Journal of Pharmaceutical Studies and Research, v. 2, no. 2, p. 52-56, 2011.

Udosen, E. O. Proximate and mineral composition of some Nigerian vegetables. Discovery and Innovation, v. 7, p. 383-386, 1995.