FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL

(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170

FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL

MYCOLOGICAL STUDIES ON POST HARVEST DETERIORATION OF PINEAPPLE (Ananas comosus L. Merr.) FRUITS IN KEFFI, NASARAWA STATE
Pages: 453-459
A.O. Ogaraku, A.C. Anadi and C. Chigozie


keywords: Fungi, deterioration, pineapple fruits, Keffi

Abstract

Post harvest deterioration of Pineapple (Ananas comosus) fruits in Keffi was studied. Eighty decayed fruit samples were collected from four (4) different locations in Keffi Local Government Area. The locations were Keffi Market, Angwan Lambu, Angwan Kaje and Angwan Fulani. Out of 80 decayed fruit samples collected 51 fruits had isolates. The fungal isolates were Rhizopus stolonifer, Aspergillus niger, Penicillium sp, Rhizopus nigricans. The frequencies of occurrence of these isolates are 47.06% 33.33%, 11.76% and 7.84%, respectively. Keffi market had the highest incidence of pathogens (29.41%) while Angwan Kaje had the least incidence of pathogens (17.65%). There was no significance difference (P>0.05) on the frequency of occurrence of the isolates in relation to locations in Keffi Local Government Area. Pathogenicity test carried out showed that Rhizopus stolonifer and Aspergillus niger were causal organisms while Rhizopus nigricans may have been a mere contaminate. Factors that enhance the spread of these organisms in these areas should be controlled.

References

Amao IO, Adebisi Adelani O, Olajide –Taiwo FB, Adeoye IB, Bamimore KM & Olabode I 2011. Economic analysis of pineapple marketing in Edo, Nigeria. Libyan Agric. Res. Center J. Int., (5): 205-208. Davidson A 2008. The Penguin Companion to Food. Penguin Books. USA, pp. 23-30. Dongmo JC & Oyeyiola GP 2006. Fusaria in the rhizophere and rhizoplane of groundnut. J. Agric. Res. Devt., 5: 153-164. Domsch RH, Gan W & Anderson I 1980. Compendium of Soil Fungi. London Academic Press I and II, pp. 1-895. Eni AO, Oluwawemitan TO & Solomon OU 2010. Microbial quality of fruits and vegetables sold in Sango Ota, Ogun State, Nigeria. African J. Food Sci., 4(5): 291-296. Haq N & Dania OF 1995. Fonio (Digiteria exilis and D. iburua) In: Williams, J. T. Makun HA, Gbodi TA, Akanya OH, Salako EA & Ogbadu GH 2009. Fungi and some mycotoxins found in mouldy sorghum in Niger State, Nigeria. World J. Agric Sci., 5(1): 5-17. Ogaraku AO, Anadi AC, Allanana JA & Vou MS 2012. Fungi deterioration and mycotoxins in stored wild castor (Ricinus communis L.) seeds in Nasarawa State, Nigeria. Nasara Scientifique, 2(1): 39-47. Onyeka CC, Maduewes JNC & Ugwuoka K J 2003. Incidence of post harvest of fungal diseases of banana, pp. 16-17. Wallbridge A 1981. Responds of Musa acuminita species and Edible cultivars to infection by Mycosphaerella musicola. Trop. Agric., 45: 13-22. WHO 1979. Mycotoxin, Environmental Health Criteria Noll. World Health Organisation, Geneva. WHO 1983. Prevention of Liver Cancer, Technical Report No. 691. World Health Organisation, Geneva. Zhu SJ 2006. Non –chemical approaches to decay control in postharvest fruit In: Noureddine, B., Norio, S. (Eds.), Advances in postharvest Technologies for Horticultural Crops. Research Signpost, Trivandrum, India, pp. 297- 313.

Highlights