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Intraspecific variation in morphological, sensory and nutritional characteristics of Dacryodes edulis fruits in West and Central Africa

Published online by Cambridge University Press:  27 June 2007

E. Kengni*
Affiliation:
IRAD/ICRAF Project, P.O. Box 2067 (Messa) Yaounde, Cameroon Department of Biochemistry, University of Yaounde 1, P.O. Box 812, Yaounde, Cameroon
M. F. Tchouanguep
Affiliation:
Department of Biochemistry, University of Dschang, P.O. Box 96 Dschang, Cameroon
C. M. F. Mbofung
Affiliation:
Department of Food Science and Nutrition, ENSAI, University of Ngaoundere, P.O. Box 455, Ngaoundere, Cameroon
Z. Tchoundjeu
Affiliation:
IRAD/ICRAF Project, P.O. Box 2067 (Messa) Yaounde, Cameroon
K. E. Asaah
Affiliation:
IRAD/ICRAF Project, P.O. Box 2067 (Messa) Yaounde, Cameroon
*
*Corresponding author. IRAD/ICRAF Project, P.O. Box 2067 (Messa) Yaounde, Cameroon. E-mail: ekengni@hotmail.com

Abstract

Six distinct market samples of Dacryodes edulis (safou/African plum) with different fruit colour were characterized in terms of morphological, sensory and nutritional traits that can guide the selection of high-value individual trees for cultivar development. The morphological characteristics assessed were: fruit length, fruit width, fruit and flesh weights, flesh thickness and pulp/fruit ratio, while the sensory characteristics were: acidity, aroma astringency, bitterness, oiliness, preference, fibrousness and sourness. In addition, the biochemical composition (carbohydrates, ash, protein, lipids, dietary fibres, vitamin C, iron, calcium and phosphorus contents) was determined. These attributes all showed great variability, suggesting their importance in the identification of multi-trait ideotypes for potential cultivar development.

Type
Research Article
Copyright
Copyright © NIAB 2003

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References

Achinewhu, SC (1983) Ascorbic acid content of some Nigerian local fruits and vegetables. Quality Plantarum. Plant Food for Human Nutrition 33: 261267.CrossRefGoogle Scholar
Anderson, FW and Tietyen-Clark, J (1986) Dietary fiber: hypercholesterolemia, hypertension and coronary heart disease. The American Journal of Gastroenterology 81: 907919.Google Scholar
Anegbeh, PO, Ukafor, V, Usors, C, Tchoundjeu, Z, Leakey, RRB and Schreckenberg, K.Domestication of Dacryodes edulis: 1. Phenotypic variation of fruit traits from 100 trees in southeast Nigeria. New Forests (in press).Google Scholar
Association of Official Analytical Chemists (AOAC) (1990) Official Methods of Analysis, 15th edn. Washington, DC: AOAC.Google Scholar
Atangana, AR, Asaah, E, Tchoundjeu, Z, Awono, A, Schreckenberg, K and Leakey, RRB (2002) Biophysical characterisation of Dacryodes edulis fruits from three markets in Cameroon. In: Kengue, J, Kapseu, C and Kayem, J (eds) 3rd International Workshop on the Improvement of Safou and Other Non-conventional Oil Crops. Yaounde, Cameroon, 3–5 October 2000. Yaounde: Presses Universitaires d'Afrique, pp. 106118.Google Scholar
Awono, A, Ndoye, O, Schreckenberg, H, Tabuna, H, Isseri, F and Temple, L (2002) Production and marketing of safou (Dacryodes edulis) in Cameroon and internationally: market development issues. Forests, Trees and Livelihoods 12: 125147.CrossRefGoogle Scholar
Devani, MB, Schishoo, CJ, Shah, SA and Suhagia, BN (1989) Spectrophotometric method for microdetermination of nitrogen in kjeldahl digest. Journal of the Association of Official Analytical Chemists 72: 953956.Google Scholar
Dey, PM and Harborne, JB (1997) Plant Biochemistry. Weimar Texas: C.H.I.P.S.Google Scholar
Economos, C and Clay, WD (1999) Nutritional and health benefits of citrus fruits, http://www.fao.org/docrep/x2650T/x2650t00.htm.Google Scholar
Gwanfobe, PN, Chambers, E IV, Martin, G, Fotso, M and Smith, MF (1991) Comparison of the acceptability of traditional Cameroon sauces made with addition of oil seeds to improve nutritional value. Ecology of Food and Nutrition 25: 323332.CrossRefGoogle Scholar
Halpern, BP (1991) More than meet the tongue: temporal characteristics of taste intensity and quality. In: Lawless, HT and Klein, BP (eds) Sensory Sciences: Theory and Application in Foods. New York: Marcel Dekker, pp. 37105.Google Scholar
IUPAC (International Union of Pure and Applied Chemistry) (1979) Standard Methods for the Analysis of Oils, Fats and Derivatives, 6th edn. Part I (Sections I and II). New York: Pergamon Press.Google Scholar
Kapseu, C and Kayem, GP (eds) (1998) Proceedings of the 2nd International Workshop on African Pear Improvement and Other New Sources of Vegetable Oils. Yaounde: Presses Universitaires de Yaounde.Google Scholar
Kengni, E, Tchoundjeu, Z, Mbofung, CMF, Tchouanguep, MF and Asaah, KE (2003a) Value added processing of tree products in agroforestry systems: description and consumer preferences of African Plum (Dacryodes edulis) fruit pulp spread. Paper presented at the international conference on ‘Building agricultural and natural resources education in Africa: quality and relevance of tertiary education’,Kenyatta University,Nairobi, Kenya,14–16 April.Google Scholar
Kengni, E, Mbofung, CMF, Tchouanguep, MF, Tchoundjeu, Z, Asaah, KE and Leakey, RRB (2003b) Preliminary sensory evaluation of the African plum (Dacryodes edulis) flesh spread. Paper presented at the International Working Meeting on Food Africa, ‘Improving food systems in Sub-Saharan Africa: responding to a changing environment’, Yaounde, Cameroon, 5–9 May.Google Scholar
Kengni, E, Tchoundjeu, Z, Tchouanguep, MF and Mbofung, CMF (2001) Sensory evaluation of Dacryodes edulis fruit types. Forests, Trees and Livelihoods 11: 5766.CrossRefGoogle Scholar
Kengue, J, Kapseu, C and Kayem, GP (eds) (2002) Proceedings of the 3rd International Workshop on African Pear Improvement and Other New Sources of Vegetable Oils, 3–5 October 2000, Yaounde, Cameroon. Yaounde: Presses Universitaires de Yaounde.Google Scholar
Kornerup, A and Wanscher, JH (1978) Methuen Handbook of Colour, 3rd edn. London: Eyre, Methuen.Google Scholar
Ladipo, DO, Adewusi, HG, Omaliko, CPE, Sarumi, MB, Adebisi, AA, Gbadamosi, LM, Okeke, AI and Asiegbu, JE (2002) Dacryodes edulis germplam collection from Southern Nigeria. In: Kengue, J, Kapseu, C and Kayem, J (eds) 3rd International Workshop on the Improvement of Safou and Other Non-conventional Oil Crops. Yaounde, Cameroon, 3–5 October 2000. Yaounde: Presses Universitaires d'Afrique, pp. 93105.Google Scholar
Leakey, RRB (1999) Potential novel food products from agroforestry trees: a review. Food Chemistry 66: 114.CrossRefGoogle Scholar
Leakey, RRB, Fondoun, JM, Atangana, A and Tchoundjeu, Z (2000) Methodology development for the characterization of genetic traits in the fruits of Irvingia gabonensis: the identifi- cation of quantitative criteria. Agroforestry Systems 50: 4758.CrossRefGoogle Scholar
Leakey, RRB, Atangana, AR, Kengni, E, Waruhiu, AN, Usoro, C, Anegbeh, PO and Tchoundjeu, Z (2002) Domestication of Dacryodes edulis in West and Central Africa. Forests, Trees and Livelihoods 12: 5771.CrossRefGoogle Scholar
Leaya, J and Abdulkhader, KM (2001) Correlation and path coefficient analysis in chili (Capsicum annum L.). Capsicum and Eggplant Newsletter 21: 5659.Google Scholar
Mbofung, CMF, Silou, T and Mouragaja, I (2002) Chemical characterization of safou (Dacryodes edulis) and evaluation of its potential as an ingredient in nutritious biscuits. Forests, Trees and Livelihoods 12: 105117.CrossRefGoogle Scholar
Okafor, JC, Okolo, HC and Ejiofor, MAN (1996) Strategies for enhancement of utilization potential of edible woody forest species of southern Nigeria. In: Van Der Maesen, LJG, Van Der Burgt, XM and Van Der Medenbach De Rooy, JM (eds) The Biodiversity of African Plants. Proceedings of the XIVth AETFAT Congress,22–27 August 1994.Wageningen: Kluwer, pp. 684695.Google Scholar
Omoti, U and Okiy, AD (1987) Characteristics and composition of the pulp oil and cake of the African pear, Dacryodes edulis (G. Don) H.J. Lam. Journal of the Science of Food and Agriculture 38: 6772.Google Scholar
Osborne, DR and Voogt, P (1978) The Analysis of Nutrients in Foods. New York: Academic Press.Google Scholar
Parkinson, JA and Allen, SA (1975) A wet oxidation procedure suitable for the determination of nitrogen and mineral nutrients in biological materials. Communication in Soil Science and Plant Analysis 6: 111.CrossRefGoogle Scholar
Pesis, E, Levis, A and Ben-Arie, R (1998) Role of acetaldehyde production in the removal of astringency from Persimmon fruits under various modified atmospheres. Journal of Food Science 53: 153156.CrossRefGoogle Scholar
Schreckenberg, K, Degrande, A, Mbosso, C, Boli Baboule, Z, Boyd, C, Enyong, L, Kanmegne, J and Ngong, C (2002) The social and economic importance of Dacryodes edulis (G. Don) H.J. Lam in Southern Cameroon. Forests, Trees and Livelihoods 12: 1540.CrossRefGoogle Scholar
Silou, T (2002) Contribution à la caractérisation des safou (Dacryodes edulis) d'Afrique centrale: méthodologie et synthèdes résultats préliminaires. In: Kengue, J, Kapseu, C and Kayem, J (eds) 3rd International Workshop on the Improvement of Safou and Other Non-conventional Oil Crops. Yaounde, Cameroon, 3–5 October 2000. Yaounde: Presses Universitaires d'Afrique, pp. 300322.Google Scholar
Tabuna, H (2002) Stratégies de développement du marché du safou (Dacryodes edulis) en Europe. In: Kengue, J, Kapseu, C and Kayem, J (eds) 3rd International Workshop on the Improvement of Safou and Other Non-conventional Oil Crops. Yaounde, Cameroon, 3–5 October 2000. Yaounde: Presses Universitaires d'Afrique, pp. 449463.Google Scholar
Tchoundjeu, Z, Kengue, J and Leakey, RRB (2002) Domestication of D. edulis: the state-of-the art. Forests, Trees and Livelihoods 12: 313.CrossRefGoogle Scholar
Waruhiu, AN (1999) Characterisation of fruits traits towards domestication of an indigenous fruit tree of west and central Africa: a case study of Dacryodes edulis in Cameroon. MSc Thesis, University of Edinburgh.Google Scholar
Watts, BM, Ylimaki, GL, Jeffrey, LE and Elias, LG (1991) Méthodes de base pour l'évaluation sensorielle des aliments. Ottawa: IDRC.Google Scholar