Isolation and Identification of Fungi Associated with Post Harvest Spoilage of Sweet Potatoes (Ipomoea batatas)
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Abstract
Sweet potato is a traditional food consumed by Bida people of Niger state but is recently observed to be in short supply. Two samples of five replicates each of decaying sweet potato were obtained randomly from small market (SM) and old market (OM), Bida and were investigated mycologically. The potatoes were homogenized and serially diluted to thin out the fungal population. The fungal load ranged from 4.2x10-5 x 10 CFU/g and the fungal isolates include Aspergillus niger, Aspergillues flavus, Mucor species, Fusarium species and Saccharomyces species. Percentage incidence of occurrence ranged from 1.3% for mucor to 79% for Saccharomyces. The result of the pathogenicity test showed that the isolates inoculated into the healthy tubers had the same features that fungi were responsible for the spoilage.
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References
Amienyo CA, Ataga A.E. (2007). Use of indigenous plant extracts for the protection of mechanically injured sweet potato (Ipomoea batatas (L.) Lam) tubers. Science Research Essay. 2(5), 167-170
Agu, B.S, Akpan EJ, Okon PA, Umoren I.U.(2014). Nutritive and anti- nutritive evaluation of sweet potatoes (Ipomoea batatas) Leaves. Pak J Nutr ;5:166–168.
Balagopalan, C., and Ray, R. C., Nedunzhiyan, M. (2000). Microorganisms associated with post-harvest spoilage of yams. Annal of Trop Research, 22:31-40 Suda, I.
Barth, M., Hankison, T. R., Zhuang, H., and Breidt, F. (2009). Microbial spoilage of fruit and vegetables. In: compendium of the microbiological spoilage of foods and beverages. Food microbiology and food safety . W. H. Sperber, M. P. Doyle (eds.), DOTIO.1007/978 - 14419- 0826 - 1 - 6,
Springer Science Business Media, LLC.
Bidarigh, S., Massiha, A., Mohamme, R. M., Khoshkoholgh, P., Issazadeh, K., Muradov, P. Z., and Azapour, E. (2012). Antimicrobial screening properties of various plant extract from Ocimum basilicum L. and Nerium oleander L. against common fungal organisms of potato. Journal of Basic and Applied Research. 2(7): 6810-6815.
Doyle, M.E. (2007). Microbial food spoilage-losses and control strategies. FRI.BRISEINGS, Food Research Institute, University of Wisconsin- Madison. http://fri.WISc.edu/pdf/PRI_BriefMicrobia-Food spoilage -7-07.pdf. Accessed 17th July,2012.
Grambaru, U.O.B. and Okinedo, J.I. (2020). Aetology of fungal diseases of sweet potato during post harvest storage in Offa, Nigeria Journal of Agriculture and Veterinary Sciences 12 (2): 46 – 59
Harrigan , D.& Maccane, D. (2005). In vivo wound healing and antiulcer properties of white sweet potato (Ipomoea batatas). J Adv Res ;4:411–415.
Hull, Z. (1993). Systematic botany and morphology of the sweet potato plant. Lima, Peru: International Potato Center (CIP), pp. 5–11.
Leksrisompong, P.P., Whitson, M.E., Truong, V. D., and Drake, M.A. (2012). Sensory attributes and consumer acceptance of sweet potato cultivars with varying flesh colours. Journal of sensory studies, 17: 59- 69.
Lima, O.O.A and Braz-Filho, R. (1997). Dibenzylbutyrolactone lignans and coumarins from Ipomoea cairica. J Braz Chem Soc;8: 235–238.
Muhammed, A. Abdulmubeen, L. and Saleem, S. (2004). Pathogenicity of Lasiodiplodia theobromae and Fusarium solani on mango. pak. J. Bot., 36(1):181-189.
Oke J.M, Oladosu, B., Okunola, M.C.(1999). Sweet potato (Ipomoea ba- tatas) tuber - potential oral antidiabetic agent. Afr J Biomed Res;2:13–17.
Okigbo, R. N and Emeka, A. N (2010). Biological control of rotinducing fungi of water yam Dioscora alata with Tricoderma harzianum, Pseudomonas syrings and Pseudomonas chlororaphis. Journal of stored product and Research. 1(2): 18 - 23.
Onourah, S., Obika, I., and Okafor, U. (2015). Filamentous Fungi Associated with the spoilage of Post- Harvest Sweet Orange Fruits (Citrus Sinensis) Sold in Awka Major Markets, Nigeria. Bioengineering and Bioscience. 3(3):44-49,
Rees, D., Van, O., and Kapinga, R. (2003). Sweet potato post-harvest assessment experiences from East Africa. Natural Resources Institute, chattam, UK. Pp 122
Ray, I.(2000). Vasorelaxation induced by common edible tropical plant extracts in isolated rat aorta and mesenteric vascular bed. J Ethnopharmacol ;92:311–316.
Rupsa, P., Yong, F, and Christiana H.A. (2017). Four acylated anthocyanins from red skin sweet potatoes (Ipomoea batatas). Shipin Kexue (Tapei);26: 182–192
Salami, A.O. and Popoola, O.O. (2007). Journal of Agricultural Science. 52 (1); 17 – 31
Williams, M.V., T.J. Kerr, R.D. Lemmon, G. Tritz. (1980). Azaserine resistance in Escherichia coli: chromosomal location of multiple genes. J.Bacteriol. 143:383-388.
Wu, J.A. Viana, J.S., Basnayake, B.B., Athukorala, I., Colombagama, P.M., Goonetilleke, A. (2004). Sweet Potato–Past and Present. In: Sweet Potato: An Untapped Food Resource, Cambridge University Press, Cam- bridge, pp. 15–40.