Comparative Analysis of the Nutrient and Anti-Nutrient Compositions of Five Different African Eggplants.
Abstract
Five distinct African eggplants were used in the study to determine their nutritional and anti-nutrient contents which include: Solanum aethiopica, Solanum gilo, Solanum inacnum, Solanum macrocarpon and Solanum melomgena. These analyses were carried using standard methods. The result indicated that S. inacnum has the highest proximate composition with calorific value of 306.45 kcal, S. gilo recorded the lowest carbohydrate value (9.28%). S. aethiopica, had the lowest proximate values but recorded the most value of crude fibre (22.00 ± 0.02%). S. macrocarpon has a low crude protein of 10.47% and a higher carbohydrate of 40.74 while S. melomgena has the highest carbohydrate and moisture of 42.98 and 84.58% respectively. There is no significant difference (p≤0.5) between the values obtained for all the minerals, in all the eggplants. The anti-nutrient analysis showed that S. gilo has the highest oxalate (6.01 ± 0.02mg/g). S. macrocarpon has a lower saponin (14.05 ± 0.02), hydrocyanic acid (4.34 ± 0.02) and phenol (1.45 ± 0.0l). S. melongena has the lowest tannin of 1.01 ± 0.01 but has the highest nitrate of 1.03 ± 0.01 µg/g. This shows that the eggplant, S. incanum, has the highest nutrient composition and can be eaten regularly for health benefits.
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B.O. Agoreyo, E. S. Obansa, and E. O. Obanor. Comparative Nutritional and Phytochemical Analyses of Two Varieties of Solanum melongena. Science World Journal, 7(1): 5 – 8, 2012.
Z. Ali, Z.L. Xu, D.Y. Zhang, X.L. He, S. Bahadur and J.X.Yi. Diversity Analysis of Eggplant Genetic Resources Molecular Research, online. Journal Genetic Molecular Research, 10 (2): 1141-1155.2011.
AOAC. In Official Methods of Analysis. Association of Official Analytical Chemists.17th edition. USA: Gaithersburg, MD. 2000.
AOAC. In Official Methods of Analysis. Association of Official Analytical Chemists.19th edition. Washington, D.C., 121 - 130. 2012.
E. Asibey-Berko. Proximate Analysis of some Underutilized Ghanian Vegetables. Ghana Journal of Science. 39:91-92. 2009.
S. Asiedu – Addo. Turkey Berry: The Wonderful Medicinal Plant.Daily Graphic Online. Thursday, 2014; 16th January, Retrieved 29th July, 2015, graphic.com.gh/15850-turkey-berry-thewonderful- medicine-plant.html.2014.
R. Auta, S.A. James, T. Auta and E.M. Sofa. Nutritive Value and Phytochemical Composition of Processed Solanum incanum (Bitter Garden Egg). Science World Journal, 6(3):5-6.2011.
B. Bhaskar and K.P. Ramesh. Genetically Modified (GM) Crop Face an Uncertain Future in India: Brinjal Appraisal – A perspective, Annals of Plant Sciences, 4(2): 960 - 975.2015.
Biology of Brinjal. General Description of Brinjal or Eggplant. Government of India Department of biotechnology, Ministry of science and technology; Retrieved from dbtbiosafety.nic.in/guidelines/brinjal on 4th October, 2015.
R.M. Bliss and D. Elstein. Scientists Get Under Eggplants Skin. ARS magazine, January 2004; 52 (1). http://wwwars.usda.gov/is/AR/archive/jan04/skin0104.htm, 2004; Retrieved 28th July, 2015.
K.O. Bonsu, D.A. Fontem, G.O. Nkansah, R.N. Iruome, E.O. Owusu and R.R. Schippers. Diversity within the Gboma Eggplant (Solanum marcocarpon), An Indigenous Vegetable from West Africa. Ghana Journal of Horticulture, 1: 50 - 58. 2008.
X.G.I. Caguiat and D.M. Hautea. Genetic Diversity Analysis of Eggplant (Solanum melongena L.) and Related Wild Species in the Philippines using Morphological and SSR Markers, SABRAO. Journal of Breeding and Genetics, 46(2), 183-201.2014.
M. Chong. Perception of the Visit and Benefits of Eggplant by Indian farmers. Journal of Risk Research, 8(7): 617-634. 2005.
B. Choudhury. Vegetables. 4th Revised Edition. India, New Delhi: National Book Trust. pp. 50-58.1976.
A. Concellòn, M.C. An˜o´n and A.R. Chaves. Effect of Chilling on Ethylene Production in Eggplant Fruit, Food Chemistry,92(1): 63 – 69.2005.
C.A. Edem, M.I. Dounmu, F.I. Bassey, C. Wilson and P. Umoren. A Comparative Assessment of the Proximate Composition, Ascorbic Acid and Heavy Metal Content of Two Species of Garden Egg (Solanum gilo and Solanum aubergine). Pakistan Journal of Nutrition, 8(5): 582 - 84.2009.
J.K. Edijala, S.O. Asagha, U. Atomatofa and G.E. Eriyamremu. Department of Biochemistry, Delta State University, Abraka, Nigeria. Department of Biochemistry, University of Benin, Benin City, Nigeria, (2005) edition of the Pakistan Journal of Nutrition.2005.
J.E. Emurotu, P.K. Onojah and A.S. Musa. Proximate and Phytochemical Screening of the Fruit and Leaves Extract of Bael (Aegle marmelos). IOSR Journal of Applied Chemistry, 9(11): 22 – 28.2017.
S.O. Eze and C.Q. Kalu. Phytochemical and Nutritive Composition Analysis of Solanum Aethopicum L. Journal of Pharmaceutical and Scientific Innovation, 3(4): 358 – 362.2014.
G.J.H. Grubben and O.A. Denton. Plant Resources of Tropical Africa II: Vegetables, Leiden, Wageningen: Backhuys Publishers. pp. 475-480.2004.
E. Guerra-Hernandez, B. Garcia-Villanova and B. Garcia-Villanova. Maillard Reaction Evaluation by Furosine Determination during Infant Cereal Processing. Journal of Cereal Science, 29: 171 – 176. 1999.
P.R. Guimeraes, A.M.P. Galvao, C.M. Batistaand and N. Freire. Eggplant (Solanum melongena) Infusion has a Modest Effect on Hypercholesterolemic Subjects. Brazilian Journal of Medical and Biological Research, 33(9): 1027 - 1036.2000.
F.O. Habwe, K.M. Waling and M.O.A. Onyango. Food Processing and Preparation Technologies for Sustainable Utilization of African Indigenous Vegetables for Nutrition Security and Wealth Creation in Kenya, 2008; In using Food Science and Technology to Improve Nutrition and Promote National Development Robertson, G. L., Lupien, J. R., (Eds), International Union for Food Science and Technology.2008.
J.B. Harborne. Phytochemical Methods. London: Chapman and Hall Ltd. pp. 149-188.1973.
S.S. Haruna, O. Ahmed and S.K. Abdullahi. Phytochemical, Proximate and Minerial Analyses of Solanum incanum Fruit. International Journal of Chemical, Material and Environmental Research, 3(1): 8 – 13.2016.
K.K. Hirst. Eggplant History (Solanum melongena). History of Eggplant Domestication Archaeology Expert 2014; About.com. Retrieved on 11th July, 2015.
J.D. Horna and G. Gruère. Marketing Underutilized Crops for Biodiversity: The Case of the African Garden Egg (Solanum aethiopicum) in Ghana 8th International BIOECON Conference, 29-30 August 2006, Kings College Cambridge.2006.
S.A. Igwe, D.N. Akunyili and C. Ogbogu. Effects of Solanum melongena on Some Visual Functions of Visually Active Igbos of Nigeria, Journal of Ethnopharmacology, 86: 135 -138.2003.
J.D. Lambert and C.S. Yang. Mechanism of Cancer Prevention by Tea Constituents. Journal of Nutrition, (133)10: 32635 – 32675.2008.
W.T. Leung, F. Busson and C. Jardin. Food Composition for Use in Africa. African Journal of Eggplant, 10(3): 101 – 119.2009.
M.L.K. Manoko and G.M. van der Weerden. Solanum americanum In: G. J. H. Grubben and O. A. Denton (eds.), Plant Resources of Tropical Africa 2. Vegetables. PROTA Foundation Wageningen/ CTA. Leiden, Wageningen: Backhuys Publishers. pp. 477-480.2004.
K. Matsubara, T. Kaneyuki, T. Miyake and M. Mori. Antiangiogenic Activity of Nasunin, Antioxidant Anthocyanin, in Eggplant Peels. Journal of Agricultural Food Chemistry, 53(16): 6272 - 6275.2005.
D.S. McGehee, M.D. Krasowski, D.L. Fung, B. Wilson, G.A. Gronert and J. Moss. Cholinesterase Inhibition by Potato Glycoalkaloids Slows Mivacurium Metabolism. Anesthesiology, 93(2): 510 - 519.2000.
D.L. Nelson and M.M. Cox. Lehninger Principle of Biochemistry, 4th ed. W.H. Freeman.2005.
D.E. Okwu. Evaluation of Phytonutrients, Mineral and Vitamin Content of Some Varieties of Yam (Discorea spp). International Journal of Molecular Medicine and Advances in Science, 22:1999 - 2003. 2005.
E.U. Onyeike, E.O. Ayalogu and S.G. Uzogara. Influence of Heat Processing of African Yam Bean Seed (Sphenostylis stenocarpa) Flour on the Growth and Organ Weights of Rats. Plant Foods and Human Nutrition, 48: 85 – 93.1995.
A.U. Osagie. Anti-nutritional Factors in Nutritional Quality of Plant Foods. Nigeria, Benin City: Ambik Press. 2011.
G. Polignano, P. Uggenti, V. Bisignano, C. Della and G. Genet. Genetic Divergence Analysis in Eggplant (Solanum melongena L.) and Allied Species. Resource Crop Evolution, 57(0): 171 – 181. 2010.
G. Putra. Nutrition is a Key to Health. Retrieved from www.nutrient.net; 28th August, 2015. 2011.
P.J. Rushton, M.T. Bokowiec, S. Han, H. Zhang, J.F. Brrannock, X. Chen, T.W. Laudeman, M.P. Timko. Tobacco Transcription Factors: Novel Insights into Transcriptional Regulation in the solanaceae, Plant physiology, 147(0): 280-295.2008.
J. Samuels. Solanum incanum (Solanaceae): Taxonomic Relationships between S. incanum, S. campylacanthum, S. panduriforme and S. lichtensteinii. Kew Bulletin, 67:401–411.2012.
G.P. Savage, L. Vanhanen, S.M. Mason and A.B. Ross. Effect of Cooking on the Soluble and Insoluble Oxalate Content of Some New Zealand Foods. Journal of Food Composition and Analysis, 13: 201 – 206.2000.
A. Sękara, S. Cebula and E. Kunicki. Cultivated Eggplants – Origin, Breeding Objectives and Genetic Resources, A Review. Folia Horticulture Annals, 19(1): 97 - 114. 2007.
R.G.D. Steel and J.H. Torrie. Principles and Procedures of Statistics. New York: McGraw-Hill Book Company, Inc. 187 – 287. 1960.
S.R. Thimmaiah. Standard Methods of Biochemical Analysis. India, New Delhi: Kalyani Publishers. pp 5 – 20. 2004.
C.K. Tweneboah. Vegetables and Spices in West Africa, with Special Reference to Ghana. 3rd Edition. Ghana: Co-Wood Publishers. 1998.
C. Westman. Industrial Organic Chemistry. 3rd Edition. New York: Springer Verlag. pp. 148 – 155. 2007.
B.D. Whitaker and J.R. Stommel. Distribution of Hydroxycinnamic Acid Conjugates in Fruit of Commercial Eggplant (Solanum melongena L.) cultivars. Journal of Agricultural Food Chemistry 3448 - 3454. 2003
DOI: https://doi.org/10.46676/ij-fanres.v5i2.230
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