Cassava (Manihot esculenta Crantz) and Yam (Dioscorea spp.) Crops and Their Derived Foodstuffs: Safety, Security and Nutritional Value

REFERENCES

• Abulude F. O. and Ojediran V. A. (2006). Development and quality evaluation of fortified ‘Amala’. ACTA Sci. Pol., Technol. Aliment. 5:127–134.
   Google Scholar
• Addo, S., Birkinshaw, L. A. and Hodges, R. J. (2002). Ten years after the arrival of Larger Grain Borer: Farmers' responses and adoption of IPM strategies. Int. J. Pest Manage. 48:315–325.
   Web of Science ®Google Scholar
• Adebayo, K., Abayomi, L., Abass, A., Dziedzoave, N. T., Forsythe, L., Hillocks, R. J., Gensi, R., Gibson, R. W., Graffham, A. J., Ilona, P., Kleih, U. K., Lamboll, R. I., Mahende, G., Martin, A. M., Onumah, G. E., Orr, A. W., Posthumus, H., Sanni, L. O., Sandifolo, V. and Westby, A. (2010). Sustainable Inclusion of smallholders in the emerging high quality cassava flour value chains in Africa: Challenges for agricultural extension services. J. Agr. Ext. 14:1–10.
   Google Scholar
• Adebayo-Oyetoro, A. O., Oyewole, O. B., Obadina, A. O. and Omemu, M. A. (2013). Microbiological safety assessment of fermented cassava flour “Lafun” available in Ogun and Oyo states of Nigeria. Int. J. Food Sci., DOI: 10.1155/2013/845324.
   PubMedGoogle Scholar
• Adebayo-Tayo, B. C., Onilude, A. A., Ogunjobi, A. A., Gbolagade, J. S. and Oladapo, M. O. (2006). Detection of fungi and aflatoxin in shelved bush mango seeds (Irvingia spp) Stored for sale in Uyo, Nigeria. EJEAFSChe 5:1569–1574.
   Google Scholar
• Adeniji, A. A., Ega, L. A., Akoroda, M. O., Ugwu, B. O. and Balogun, A. (2001). Global strategy for cassava development. Nigeria: A country case study. FAO (Food and Agricultural Organisation), Rome, IT.
   Google Scholar
• Aderiye, B. I. and A. A. Ogunjobi (1998). Fermentation of yam: Microbiology and sensory evaluation of cooked fermented yam tissues. Plant Food Hum. Nutr., 52:49–54.
   PubMed Web of Science ®Google Scholar
• Adewusi, S. R. A. and Badbury, J. H. (1993). Carotenoids in cassava: comarison of open-column and HPLC methods of analysis. J. Sci. Food Agric., 62:375–383.
   Web of Science ®Google Scholar
• Adindu, M. N., Olayemi, F. F. and Nze-Dike, O. U. (2003). Cyanogenic potential of some cassava products in Port Harcourt markets in Nigeria. J. Food Comp. Anal. 16:21–24.
   Web of Science ®Google Scholar
• Aidoo, K. A. (2007). Identification of Yam Tuber Rot Fungi from Storage Systems at the Kumasi Central Market. B.Sc. Thesis, Faculty of Agriculture of K. N.U.S.T., Kumasi, GH.
   Google Scholar
• Akangbe, J. A., Oloruntoba, O. O., Ayanda, I. F. and Komolafe, S. E. (2012). An analysis of yam storage strategy to promote food security in Asa local government area of Kwara state, Nigeria. EJESM 5:550–558.
   Google Scholar
• Akanji, B. O., Akpokodje, G. and Ogundele, O. O. (2003). Labour use pattern on farms. In:NISER Annual Survey of Crop Production Condition in Nigeria ,pp.34–46. NISER, Ibadan, NG.
   Google Scholar
• Akissoe, N. H., Hounhouigan, J. D., Brica, N., Vernier, P., Nago, M. C. and Olorunda, O. A. (2003). Physical, chemical and sensory evaluation of dried yam (Dioscorea rotundata) tubers, flour and amala – a flour-derived product. Trop. Sci. 41:151–156.
   Google Scholar
• AMCOST (2006). Technologies to Reduce Post-Harvest Food Loss. The African Ministerial Council on Science and Technology (AMCOST) of the African Union (AU), Pretoria, ZA.
   Google Scholar
• ARSO (2012a). Cassava wheat composite flour – Specification. CD-ARS 842:2012(E), ICS 67.080.20. African Organisation for Standardisation. Available from https://law.resource.org/pub/ars/ibr/ars.842.2012.pdf. Last accessed on-line in March 2014.
   Google Scholar
• ARSO (2012b). High Quality Cassava Flour – Specifications, ARS 840:2012(E). African Organisation for Standardisation. Nairobi, EAK. Available from http://www.arso-oran.org/wp-content/uploads/2012/10/CD-ARS-840–2012-High-quality-cassava-flour-Specification.pdf. Accessed March 2014.
   Google Scholar
• ARSO (2012c). Garri – Specifications, ARS 854–2012(E). African Organisation for Standardisation. Nairobi, EAK. Available from http://www.arso-oran.org/wp-content/uploads/2012/10/CD-ARS-854-2012-Gari-Specification.pdf. Accessed March 2014.
   Google Scholar
• ARSO (2012d). Yams – Specifications, ARS 825:2012(E). African Organisation for Standardisation. Nairobi, EAK. Available from http://www.arso-oran.org/wp-content/uploads/2012/10/CD-ARS-825–2012-Yams-Specification.pdf. Accessed March 2014.
   Google Scholar
• Balagopalan, C., Padmaja, G., Nanda, S. and Morthy, S. (1988). Cassava in Food, Feed and Industry. CRC Press, Boca Raton, FL.
   Google Scholar
• Bhandari, M. R., Kasai, T. and Kawabata, J. (2003). Nutritional evaluation of yam (Dioscorea spp.) in Nepal. Food Chem. 82:619–623.
   Web of Science ®Google Scholar
• Bhandari, M. R. and Kawabata, J. (2004). Organic acid, phenolic content and antioxidant activity of wild yam (Dioscorea spp.) tubers of Nepal. Food Chem. 88:163–168.
   Web of Science ®Google Scholar
• Bokanga, M. (1994). Distribution of cyanogenic potential in cassava germplasm. Acta Hortic. 375:117–123.
   Google Scholar
• Bokanga, M. (1994a). Processing of cassava leaves for human consumption. Acta Hortic. 375:203–207.
   Google Scholar
• Bokanga, M. and Otoo, E. (1991). Cassava based foods: How safe are they? In:Tropical Root Crops in a Developing E conomy Proceedings of the 9th Symposium of the International Society for Tropical Root Crops, pp.225–232. Ofori, F. and Hahn, S. K., Eds.,Accra, GH.
   Google Scholar
• Bradbury, J. H., Egan, S. V. and Lynch, M. J. (1991). Analysis of cyanide in cassava using acid hydrolysis of cyanogenic glucosides. J. Sci. Food Agr ic. 55:277–290.
   Web of Science ®Google Scholar
• Bradbury, J. H. and Holloway, W. D. (1988). Cassava, M. esculenta. Chemistry of tropical root crops: Significance for nutrition and agriculture in the Pacific (Monograph nr. 6). Australian Centre for International Agricultural Research, Canberra, Australia, pp. 76–104.
   Google Scholar
• Breuninger, W. F., Piyachomkwan, K. and Sriroth, K. (2009). Tapioca/cassava starch: Production and use. In:Starch Chemistry and Technology, p.544. BeMiller, J. and Whistler, R. Eds., Academic Press, New York, USA.
   Google Scholar
• Cardoso, A. P., Mirione, E., Ernesto, M., Massaza, F., Cliff, J., Haque, M. R. and Bradbury, J. H. (2005). Processing of cassava roots to remove cyanogens. J. Food Comp. Anal. 18:451–460.
   Web of Science ®Google Scholar
• Chandler, J. D. and Day, B. J. (2012). Thiocyanate: A potentially useful therapeutic agent with host defense and antioxidant action. Biochem. Pharmacol. 84:1381–1387.
   PubMed Web of Science ®Google Scholar
• Chou, S., Chiang, B., Chung, Y., Chen, P. and Hsu, C. (2006). Effects of storage temperatures on the antioxidative activity and composition of yam. Food Chem., 98:618–623.
   Web of Science ®Google Scholar
• Codex Alimentarius (1985). Codex Standards for Miscellaneous Products. 1st Ed.. Supplement 1 to Codex Alimentarius, volume XII. FAO (Food and Agricultural Organisation)? Rome, I.
   Google Scholar
• Codex Alimentarius (2005). Codex stan 193–1995: Codex general standard for contaminants and toxins in food and feed. FAO (Food and Agricultural Organisation), Rome, I.
   Google Scholar
• Codex Alimentarious Commission (1994). Pesticide residue problem in developing countries – lack of data. Paper Presented at the 26th Session of the Codex Committee on Pesticide Residues, Joint FAO/WHO Food Standards Programme, Codex reference CX/PR 94/15. FAO (Food and Agricultural Organisation). The Hague, NL.
   Google Scholar
• Codex Alimentarius, FAO/WHO. (1985). Report of the Seventh Session of the Codex Coordinating Committee for Africa, 1–12 July. Alinorm 85/28A. Geneva, CH.
   Google Scholar
• Cooke, R. D. (1978). An enzymatic assay for the total cyanide content of cassava (Manihot esculenta Crantz). J. Sci. Food Agric. 29:345–352.
   PubMed Web of Science ®Google Scholar
• Cooke R. D. and Maduagwu, E. (1978). The effects of simple processing on the cyanide content ofcassava chips. J. Food Techn., 13:299–306.
   Web of Science ®Google Scholar
• Cooke, R. D., Howland, A. K. and Hahn, S. K. (1978). Screening cassava for low cyanide using an enzymatic assay. Exp. Agric. 14:3367–3372.
   Web of Science ®Google Scholar
• Dinham, B. (2003). Growing vegetables in developing countries for local urban populations and export markets: Problems confronting small-scale producers. Pest Manag. Sci. 59:575–582.
   PubMed Web of Science ®Google Scholar
• Diop, A. (1998). Processing of roots and tubers. In:Storage and Processing of Roots and Tubers in the Tropics. Ch. 5. Calverley, D. J. B., Ed., Food and Agricultural Organisation (FAO) Rome, I. Corporate Documents Repository, Available from http://www.fao.org/docrep/x5415e/x5415e05.htm#5.1.2%20the%20processing%20of%20cassava%20into%20gari. Accessed March 2014.
   Google Scholar
• Djeri, B., Ameyapoh, Y., Karou, D. S., Anani, K., Soncy, K., Adjrah, Y. and Souza, C. (2010). Assessment of microbiological qualities of Yam chips marketed in togo. Adv. J. of Food Sci. Technol. 2:236–241.
   Google Scholar
• Dumont, R. (1995). The nature and importance of tuber damage during yam storage in Cote d'Ivoire: Improvement development through research. In:Workshop on Pests and Pathogens of Yams in Storage, 25 May. International Institute of Tropical Agriculture (IITA), Ibandan, NG.
   Google Scholar
• Eggum, B. O. (1970). The protein quality of cassava leaves. Br. J. Nutr., 24(3):761–768.
   PubMed Web of Science ®Google Scholar
• El-Sharkawy, M. A. (2003). Cassava biology and physiology. Plant Mol. Biol. 53:621–641.
   PubMed Web of Science ®Google Scholar
• Emmanuel, O., Otutu, O. J. and Otuya, O. B. (2013). Concentration of heavy metal in soils, tubers and leaves of cassava plants grown around some oils spills and gas fairing zones in Delta State, Nigeria. App. Sci. Res. J. 1(1)1–6.
   Google Scholar
• Essers, A. J. A. (1994). Making safe flour from bitter cassava by indigenous solid substrate fermentation. Acta Hortic. 375:217–224.
   Google Scholar
• Essono, G., Ayodele, M., Akoa, A., Foko, J., Filtenborg, O. and Olembo, S. (2009). Aflatoxinproducing Aspergillus spp. and aflatoxin levels in stored cassava chips as affected by processing practice. Food Control, 20:648–654.
   Web of Science ®Google Scholar
• European EC 1881/2006. (2006). Setting maximum levels for certain contaminants in foodstuffs (L 364/5). Official Journal of European Union, 20 December. Available on-line from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2006:364:0005:0024:EN:PDF. Accessed March 2014.
   Google Scholar
• European EC 396/2005 (2005). Maximum residue levels of pesticides in or on food and feed of plant and animal origin and amending Council Directive 91/414/EEC. Official Journal of European Union, 16 March 2005 (updated on 6 June 2013). Available on-line at: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2005:070:0001:0016:en:PDF. Accessed March 2014.
   Google Scholar
• Falade, K. O. and Akingbala, J. O. (2010). Utilization of cassava for food. Food Rev. Int. 27:51–83.
   Web of Science ®Google Scholar
• FAOSTAT (2012). Casava. Food and Agricultural Organization of the United Nations: Commodity balances. Available from http://faostat3.fao.org/home/index.html#DOWNLOAD. Accessed March 2014.
   Google Scholar
• FAOSTAT (FAO) (2011). Yam. Available from http://faostat3.fao.org/faostat-gateway/go/to/search/cassava/E. Accessed March 2014.
   Google Scholar
• FAOSTAT (FAO) (2011a). Available from http://faostat3.fao.org/faostat-gateway/go/to/search/yam/E.
   Google Scholar
• FAO/WHO. (1973). Energy and protein requirements. Report of a Joint FAO/WHO ad hoc Expert Committee. WHO Technical Reports Series 522, pp.1–118. Food and Agricultural Organisation (FAO), Rome, I.
   Google Scholar
• FAO/WHO (1991). Joint FAO/WHO food standards programme. In:Codex Alimentarius Commission XII (Suppl. 4), Standard 176–1989. FAO, Rome, IT.
   Google Scholar
• Foraminifera Market Research (2012). Instant pounded yam flour production in Nigeria; How viable? Available from http://www.foramfera.com/index.php/investment-opportunities-in-nigeria/item/124-instant-pounded-yam-flour-production-in-nigeria-how-viable? Accessed March 2014.
   Google Scholar
• Gbolagade, J., Ibironke, A. and Yetunde, O. (2011). Nutritional compositions, fungi and aflatoxins detection in stored ‘gbodo’ (fermented Dioscorea rotundata) and ‘elubo ogede’ (fermented Musa parasidiaca) from South western Nigeria. Afr. J. Food Sci. 5:105–110.
   Google Scholar
• Gil, J. L. and Buitrago, A. J. A. (2002). La yuca en la alimentacion animal. In:La Yuca en el Tercer Milenio: Sistemas Modernos de Producción, Procesamiento, Utilización y Comercialización, pp.527–569. Ospina, B. and Ceballos, H., Eds., Centro Internacional de Agricultura Tropical (CIAT), Cali, CL.
   Google Scholar
• Gladstone, M., Mallewa, M., Jalloh, A., Voskuijl, W., Postel, D., Groce, N., Kerac, M. and Molineux, E. (2014). Assessment of neurodisability and malnutrition in children in Africa. Semin. Pediatr. 21(1):50–57.
   Web of Science ®Google Scholar
• Gnonlonfin, G. J. B., Adjovi, C. S. Y., Katerere, D. R., Shephard, G. S. Sanni, A. and Brimer, L. (2012). Mycoflora and absence of aflatoxin contamination of commercialized cassava chips in Benin, West Africa. Food Control 23(2)333–337.
   Web of Science ®Google Scholar
• Hahn, S. K. (1988). Overview of traditional processing and utilisation in Africa. In:Proceedings of Workshop of the Potential Utilisation of Cassava as Livestock Feed in Africa, pp.16–27. Hahn, S. K., Reynolds, L. and Egbunike, G. N., Eds.,IITA/ILCA/Univ., Ibadan, NG.
   Google Scholar
• Heuberger, C. (2005). Cyanide Content of Cassava and Fermented Products with Focus on Attiéké and Attiéké Garba. Diss. ETH No. 16247. Doctoral dissertation, Swiss Federal Institute of Technology, Zurich.
   Google Scholar
• Hillocks, R. J., Thresh, J. M. and Bellotti, A. C. (2002). Cassava. Biology, Production and Utilization. Cabi Publishing, Oxford, UK.
   Google Scholar
• IARC (1990). Nickel and nickel compounds. In:Chromium, Nickel and Welding, pp.257–445. International Agency for Research on Cancer (IARC), WHO, Lyon, FR.
   Google Scholar
• Idodo-Umeh, G. and Ogbeibu, A. E. (2010). Bioaccumulation of the heavy metal in cassava tubers and plantains fruits grown in the soils impacted with petroleum and non-petroleum activity. Res. J. Environ. Sci. 4(1)33–41.
   Google Scholar
• IITA (1990). Cassava in Tropical Africa-A Reference Manual. International Institute of Tropical Agriculture (IITA), Ibadan, NG.
   Google Scholar
• IITA (2005). Preemptive Management of the Virulent Cassava Mosaic Disease in Nigeria. Annual Report July 2003-June 2004. International Institute of Tropical Agriculture (IITA),Ibadan, NG.
   Google Scholar
• IITA (2005a). Integrated Cassava Project. Postharvest. Available from http://www.cassavabiz.org/postharvest. Accessed March 2005.
   Google Scholar
• Jimoh, K. O. and Kolapo, A. L. (2008). Mycoflora and aflatoxin production in market samples of some selected Nigerian foodstuffs. Res. J. Microbiol. 3:169–179.
   Google Scholar
• Jonathan, S. G. and Olowolafe, T. B. (2001). Studies on nutrient contents and microorganisms associated with dodo Ikire a plantain snack from Western Nigeria. NISEB J. 1:27–30.
   Google Scholar
• Kawano, K. (2003). Thirty years of cassava breeding for productivity – Biological and social factors for success. Crop Sci. 43:1325–1335.
   Web of Science ®Google Scholar
• Kishi, M. (2005). The health impacts of pesticides: What do we now know? In:The Pesticide Detox. Towards a More Sustainable Agriculture, pp.23–38. Pretty, J., Ed., Earthscan, London, UK.
   Google Scholar
• Kleih, U., Philips, D., Mignouna, D., Ogbonna, M. and Siwoku, B. (2012). Nigeria – Scoping yam value chain analysis. Yam improvement for income and food security in West Africa. IITA (International Institute of Tropical Agriculture). Ibadan, Nigeria. Available from http://www.iita.org/c/document_library/get_file?p_l_id=789615&folderId=1043896&name=DLFE-5505.pdf. Accessed March 2014.
   Google Scholar
• Kolawole, O. P., Agbetoye, L. M., Ogunlowo, A. S., Sanni, L. and Adebayo, A. (2012). Innovative development of cassava processing machine as solution to crises against agricultural systems. In:Conference on International Research on Food Security, Natural Resource Management and Rural Development, 19th-21st September 2012, Tropentag, Gottingen, Germany.
   Google Scholar
• Kouamé, A. K., Djéni, T. N., N'Guessan, F. K. and Dje, M. K. (2013). Post processing microflora of commercial attieke (a fermented cassava product) produced in the south of Côte d'Ivoire. Lett. Appl. Microbiol. 56:44–50.
   PubMed Web of Science ®Google Scholar
• Manjula, K., Hell, K., Fandohan, P., Abass, A. and Bandyopadhyay, R. (2009). Aflatoxin and fumonisin contamination of cassava products and maize grain from markets in Tanzania and republic of the Congo. Toxins Rev. 28:63–69.
   Web of Science ®Google Scholar
• Marco, J. A. M. and Kishimba, M. A. (2006). Pesticides and metabolites in cassava, eucalyptus, plum and cashew leaves and roots in relation to a point source in Kibaha, Tanzania. Chemosphere 64:542–548.
   PubMed Web of Science ®Google Scholar
• Mlingi, N. L. V. and Bainbridge, Z. (1994). Reduction of cyanogen levels during sun-drying of cassava in Tanzania. Acta Hortic. 375:233–239.
   Google Scholar
• Montagnac, J. A., Davis, C. R. and Tanumihardjo, S. A. (2009). Processing techniques to reduce toxicity and antinutrients of cassava for use as a staple food. Compr. Rev. Food Sci. F. 8:7–27.
   Google Scholar
• Montagnac, J. A., Davis, C. R. and Tanumihardjo, S. A. (2009a). Nutritional value of cassava for use as a staple food and recent advances for improvements. Compr. Rev. Food Sci. F. 8:181–194.
   Web of Science ®Google Scholar
• Muck, O. (1994). Improving small scale harvesting, handling, processing and storage of tropical root and tuber crops. Deutsche Stiftung fur international Entwicklung, Deutsche Gesellschaft fur Technische Zusammenarbeit. International Seminar, 4–17 December, Kumasi, GH.
   Google Scholar
• Nambisan, B. and Sundaresan, S. (1985). Effect of processing on the cyanoglucoside content of cassava. J. Sci. Food Agric., 36(11):1197–1203.
   Web of Science ®Google Scholar
• Obadina, A. O., Oyewole, O. B., Sanni, L. O., Tomlins, K. I. and Westby, A. (2008). Identification of hazard and critical control points (CCP) for cassava fufu processing in South-West Nigeria. Food Control 19:22–26.
   Web of Science ®Google Scholar
• Odoemelam, S. A. and Osu, C. I. (2009). Aflatoxin B1 contamination of some edible grains marketed in Nigeria. E-J. Chem. 6:308–314.
   Web of Science ®Google Scholar
• Oduro, I., Ellis, W. O., Dziedzoave, N. T. and Nimako-Yeboah, K. (2000). Quality of gari from selected processing zones in Ghana. Food Control 11:297–303.
   Web of Science ®Google Scholar
• Ohimain, E. I. (2014). The prospect and challenge of cassava inclusion in wheat bread policy in Nigeria. IJSTS 2:6–17.
   Google Scholar
• Ojokoh, A. O. and Gabriel, R. A. O. (2010). Comparative study on the storage of yam chips (gbodo) and yam flour (elubo). Afr. J. Biotechnol. 9:3175–3177.
   Web of Science ®Google Scholar
• Oke, O. (1994). Eliminating cyanogens from cassava through processing: technology and tradition. Acta Hort., 375:5586–5591.
   Google Scholar
• Oke, O. L. (1990). Roots, Tubers, Plantains and Bananas in Human Nutrition. Food and Agricultural Organization (FAO), Rome, IT.
   Google Scholar
• Okigbo, B. N. (1980). Nutritional implications of projects giving high priority to the production of staples of low nutritive quality. In the case for cassava (Manihot esculenta, Crantz) in the humid tropics of West Africa. Food Nutr. Bull. 2:1–10.
   Google Scholar
• Okigbo, R. N. and Ikediugwu, F. E. O. (2002). Evaluation of water losses in different regions of yam (Dioscorea spp.) tuber in storage. Nig. J. Expt. Appl. Biol. 3:320–325.
   Google Scholar
• Okigbo, R. N. and Ogbonnaya, U. O. (2006). Antifungal effects of two tropical plant extracts (Ocimum gratissimum and Aframomum melegueta) on post-harvest yam rot. Afr. J. Biotechnol. 5:727–731.
   Web of Science ®Google Scholar
• Oludiran, A. (2012). Prospects for Cassava Flour Incorporation in Bread Making in Nigeria. FHI 360, Abuja, Nigeria.
   Google Scholar
• Omafuvbe, B. O., Adigun, A. R., Ogunsuyi, J. L. and Asumno, A. M. (2007). Microbial diversity in ready-to-eat fufu and lafun-fermented cassava products sold in Ile-Ife, Nigeria. Res. Microbiol 2:831–837.
   Google Scholar
• Onabolu, A. and Bokanga, M. (1998). The promotion of cassava as a commodity for the food industry: A case study in Nigeria. Paper Presented at the CFC Workshop on Local Processing and Vertical Diversification of Cassava in Southern and Eastern Africa, 15–19 June, Mukono, UG.
   Google Scholar
• Onitilo, M. O., Sanni, L. O., Oyewole, O. B. and Maziya-Dixon, B. (2007). Physico-chemical and functional properties of sour starches from different cassava varieties. Int. J. Food Prop. 10:607–620.
   Web of Science ®Google Scholar
• Opara, L. U. (2003). Yams, Post-Harvest Operations. INPho - Post-Harvest Compendium. Food and Agricultural Organization (FAO), Rome, IT.
   Google Scholar
• Owuamanam, C. I. (2007). Quality of bread from wheat/cassava flour composite as affected by strength and steeping duration of cassava in citric acid. Nat. Sci. 5:24–28.
   Google Scholar
• Padmaja, G., George, M. and Moorthy, S. N. (1993). Detoxification of cassava during fermentation with a mixed culture inoculum. J. Sci. Food Agric., 63:473–481.
   Web of Science ®Google Scholar
• Peraica, M., Radic, B., Lucic, A. and Pavlovic, M. (1999). Toxic effects of mycotoxins in humans. Bull. World Health Organ., 77:754–763.
   PubMed Web of Science ®Google Scholar
• Piyachomkwan, K., Wanlapatit, S., Chotineeranat, S. and Sriroth, K. (2005). Transformation and balance of cyanogenic compounds in cassava starch manufacturing process. Starch/Starke 57:71–78.
   Web of Science ®Google Scholar
• Polycarp, D., Afoakwa, E. O., Budu, A. S. and Otoo, E. (2012). Characterization of chemical composition and anti-nutritional factors in seven species within the Ghanaian yam (Dioscorea) germplasm. Int. Food Res. J. 19:985–992.
   Google Scholar
• Pretty, J. and Hine, R. (2005). Pesticide use and the environment. In:The Pesticide Detox. Towards a More Sustainable Agriculture, pp.1–22. Pretty, J., Ed., Earthscan, London, UK.
   Google Scholar
• Sanni, L., Maziya-Dixon, B., Onabolu, A. O., Arowosafe, B. E., Okoruwa, A. E., Okechukwu, R. U., Dixon, A. G. O., Waziri, A. D. I., Ilona, P., Ezedinma, C., Ssemakunla, G., Lemchi, J., Akoroda, M., Ogbe, F., Tarawali, G., Okoro, E. and Geteloma, C. (2006). Cassava Recipes for Household Food Security. International Institute of Tropical Agriculture (IITA) Integrated Cassava Project, Ibadan, Nigeria.
   Google Scholar
• Sanni, L. O., Onadipe, O. O., Ilona, P., Mussagy, M. D., Abass, A. and Dixon, A. G. O. (2009). Successes and Challenges of Cassava Enterprises in West Africa: A Case Study of Nigeria, Bénin, and Sierra Leone. IITA, Ibadan, NG.
   Google Scholar
• Santana, M. A., Vásquez, V., Matehus, J. and Aldao, R. A. (2002). Linamarase expression in cassava cultivars with roots of low- and high-cyanide content. Plant Physiol. 129:1686–1694.
   PubMed Web of Science ®Google Scholar
• Sanusi, W.A, and Salimonu, K. K. (2006). Food security among household: Evidence from yam production economics in Oyo state, Nigeria. Agric. J. 1:249–253.
   Google Scholar
• Shin, M.-Y., Cho, Y.-E., Park, C., Sohn, H.-Y., Lim, J.-H. and Kwun, I.-S. (2013). The content of heavy metal in (Cd, Cr, As, Pb, Ni and Sn) in the selected commercial Yam powder products in South Korea. Prev. Nutr. Food Sci. 18:249–255.
   PubMedGoogle Scholar
• Shittu, T. A., Raji, A. O. and Sanni, A. O. (2007). Effect of baking time and temperature on some physical properties of bread loaf. Food Res. Intern., 40(2):280–290.
   Web of Science ®Google Scholar
• Sibanda, T., Dobson, H. M., Cooper, J. F., Manyangarirwa and W., Chiimba, W. (2000). Pest management challenges for smallholder vegetable farmers in Zimbabwe. Crop Prot., 19:807–815.
   Web of Science ®Google Scholar
• Siritunga, D. and Sayre, R. T. (2003). Generation of cyanogen-free transgenic cassava. Planta 217:367–373.
   PubMed Web of Science ®Google Scholar
• Somorin, Y. M., Bertuzzi, T., Battilani, P. and Pietri, A. (2012). Aflatoxin and fumonisin contamination of yam flour from markets in Nigeria. Food Control 25:53–58.
   Web of Science ®Google Scholar
• Sundaresan, S., Nambisan, B. and Eswari Amma, C. S. (1987). Bitterness in cassava in relation to cyanoglucoside content. Indian J. Agr ic . Sci. 57:37–40.
   Web of Science ®Google Scholar
• Taiwo, K. A. (2006). Utilization Potentials of cassava in Nigeria: The Domestic and Industrial products. Food Rev. Int. 22:29–42.
   Web of Science ®Google Scholar
• Tettey, V. (2001). Assessment of the use of pesticides by cabbage growers in the Ga District of Ghana. Unpublished B.Sc. Thesis. Department of Home Science, University of Ghana, Legon.
   Google Scholar
• Tewe, O. (1994). Indices of cassava safety for livestock feeding. Acta Hortic. (ISHS) 375:241–250.
   Google Scholar
• Thai Industrial Standard Institute (1978a). Standard for Glucose Syrup. Thai Industrial Standard Institute, UDC 664.162.79, Ministry of Industry, Bangkok, IN.
   Google Scholar
• Thai Industrial Standard Institute (1978b). Standard for Tapioca Flour/Starch. UDC 664.272. Ministry of Industry, Bangkok, IN.
   Google Scholar
• Thamaga-Chitja, J. M., Hendriks, S. L., Ortmann, G. F. and Green, M. (2004). Impact of maize storage on rural household food security in Northern Kwazulu-Natal. JFECS 32:8–15.
   Google Scholar
• Udensi, E. A., Ukozor, A. U. C. and Ekwu, F. C. (2005). Effect of fermentation, blanching, and drying temperature on the functional and chemical properties of cassava flour. Int. J. Food Prop. 8:171–177.
   Web of Science ®Google Scholar
• Udofia, P. G., Udoudo, P. J., Eyen, N. O. and Udoekong, N. S. (2011). Optimizing gari quality attributes for different groups of consumers with response surface methodology. J. Agric. Biotec. Sustain. Dev. 3:28–34.
   Google Scholar
• Ugwu, B. O. (1996). Increasing cassava production in Nigeria and prospects for sustaining the trend. Outlook Agr. 25:179–185.
   Web of Science ®Google Scholar
• Ukwuru, M. U. and Egbonu, S. E. (2013). Recent development in cassava-based products research. Academia Journal of Food Research 1:1–13.
   Google Scholar
• UNESCO (2010). UNESCO-Nigeria TVE Project. Traditional and industrial processing of yam flour and yam chips. Available from http://www.unesco-nigeriatve.org/teaching%20materials/hm/hospitality%20management/semester3/HMT%20234%20Food%20Science%20and%20Nutrition/theory/week9.html. Accessed March 2014.
   Google Scholar
• West, C. E., Pepping, F. and Temalilwa, C. R. (1988). The Composition of Foods Commonly Eaten in East Africa. Wageningen Agricultural University, NL.
   Google Scholar
• Wilberforce, J. O. and Nwabue, F. I. (2013). Uptake of Heavy Metals by Dioscorea rotundata (White Yam) and Ipomoea batatas (Sweet Potato) from Enyigba Lead-Zinc Derelict. Environ. Pollut. 2:79–84.
   Google Scholar
• Williamson, S., Ball, A. and Pretty, J. (2008). Trends in pesticide use and drivers for safer pest management in four African countries. Crop. Prot. 27:1327–1334.
   Web of Science ®Google Scholar
• Wobeto, C., Corrêa, A. D., Abreu, C. M. P., Santos, C. D. and Abreu, J. R. (2006). Nutrients in the cassava (Manihot esculenta Crantz) leaf meal at three ages of the plant. Food Sci. Technol. (Campinas) 26:865–869.
   Google Scholar
• Wobeto, C., Corrêa, A. D., Abreu, C. M. P., Santos, C. D. and Pereira, H. V. (2007). Antinutrients in the cassava (Manihot esculenta Crantz) leaf powder at three ages of the plant. Food Sci. Technol. (Campinas) 27:108–112.
   Google Scholar