alexa Postharvest Losses Of Yam Tubers In Benue State, Nigeria, West Africa
ISSN: 2161-0703

Journal of Medical Microbiology & Diagnosis
Open Access

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JOINT EVENT ON 15th International PHARMACEUTICAL MICROBIOLOGY AND BIOTECHNOLOGY CONFERENCE & 10th Annual MEDICAL MICROBIOLOGY SUMMIT & EXPO
June 21-23, 2017 London, UK

Tseaa Shambe
Benue State University, Nigeria
ScientificTracks Abstracts: J Med Microb Diagn
DOI: 10.4172/2161-0703-C1-005
Abstract
Statement of the Problem: Africa is the largest producer of yam in the world, with the highest production coming from West Africa. Benue State is the largest producer of yams in Nigeria followed by other States in North Central region. This is because of the rainfall, soil and other climatic conditions that are favorable for yam production in this region. The yams produced form staple food for about 182.2 million people. Postharvest losses of yam tubers (Dioscorea rotundata and D. alata) may occur from a number of causes ranging from improper handling of the tubers to bio-deterioration by microorganisms, insects or rodents. The largest cause of postharvest losses of yam tubers is from microorganisms. Methodology & Theoretical Orientation: Isolation and identification of microorganisms responsible for the rot of yam tubers was carried out using standard methods of isolation and identification. Optimum temperature of growth was analyzed; pathogenicity test was conducted on the isolates to confirm them as the etiologies of the rot. Plant extract was prepared and incorporated on media plates and used for antimicrobial sensitivity test. Findings: Four bacteria species (Serratia marcescens, Erwinia carotovora, Klebsiella oxytoca and Pseudomonas aeruginosa) and five fungi species (Aspergillus niger, Rhizopus stolonifer, Botryodiplodia theobromae, Fusarium oxysporum and Penicillium marneffei) were consistently isolated in samples from the various sampling areas. Pathogenicity test revealed the organisms as the cause of the rot. They were inhibited by the plant extracts partially or completely. Conclusion & Significance: Extensive loss of the harvest can be prevented by blending the various extracts and spraying them on the yams to arrest rot.
Biography

Tseaa Shambe is a Chemist and a Lecturer in Organic Chemistry. He has published papers on chemical composition and structures of some carbohydrates and their degradation by enzymes and acids. He has also worked on the use of bread and composite flour for bread and confectionaries. He is also interested in food toxicology and works very closely with microbiologist.

Email: [email protected]

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