Effect of Methods of Processing Groundnut (Arachis hypogaea L.) on the Susceptibility of the Seeds to Fungal Infection during Storage

R. E. Baraka, M. D. Tobin-West

Abstract


The study on the effect of storage length on susceptibility of variously processed and unprocessed groundnut seed to fungal infection were carried out in the Department of Crop and Soil Science laboratory.  Four methods of processing (oil fried, sand fried, oven fried, smoked with seeds in shell) and a control (raw unprocessed seeds) was adopted and laid out in a Completely Randomized Design (CRD). Four fungal isolates were identified which are Aspergillus flavus, Aspergillus niger, Sclerotium rolfsii, and Fusarium moniliforme. Aspergillus flavus was the most pronounced fungi (41.35%) followed by Aspergillus niger (38.15%), Sclerotium rolfsii (34.92%) and the lowest was Fusarium moniliforme (28.83%). There was significant difference in fungal contamination at 5% probability level between the method of processing and raw seeds. Susceptibility to fungal infection revealed that oil fried seed were less susceptible to fungal invasion followed by smoked with seeds in shell, oven fried seeds, sand fried seeds and raw seeds. However, groundnut oil should be used to process groundnut seeds for human consumption because it stores better and is less susceptible to mycobial contamination. Also, controlled storage environment should be used to reduce fungal contamination, processing should be done in hygienic environment and seeds should not be stored for too long as the higher the storage period the more susceptible the seeds become.


Keywords


Groundnut seeds, Fungi, storage and processing methods

Full Text:

PDF

References


• Ajeigbe, H., Waliyar, F., Echekwu, C., Ayuba, K., Mutagi, B., Eniayeyu, D. & Inuwa, A. (2014). A Farmer’s guide to groundnut production in Nigeria. Patancheru 502 324, Telangana, India: International Crop Research Institute for the Semi-Arid Tropics, 36pp.

• Baraka, E. R., Onuegbu, B. A. & Embiowei, S. E. (2010). Effects of Crude oil on the pathogenicity of Seed-borne Mycoflora of Groundnut (Arachis hypogaea L.). Acta Agronomica Nigeriana Journal, 10(1): 7-14.

• Chavan, A. M. (2011). Nutritional changes in oilseeds due to Aspergillus spp. J. Exp. Sci., 2: 29-31.

• Fagbohun, E. D. & Faleye, O. S. (2012a). The Nutritional and Mycoflora changes during storage of groundnut (Arachis hypogaea). International Journal of Agronomy and Agricultural Research, 2(6):15-22.

• FAO (1994). Expert’s recommendations on fat and oils in human nutrition. The article is adapted from the first chapter of fats and oils in human nutrition: report of joint expert consultation. FAO food and nutrition paper no 57.

• Gibbons, R.W. (1980). The ICRISAT groundnut program. Proceedings of the international workshop on groundnuts ICRISAT center, Patancheru, India, 13-17 October 1980: 12-16pp.

• Godish Thad (2001). Indoor environmental quality. Chelsea Mich: Lewis Publishers. pp 183-4.

• Gregory, W., Gregory, M., Krapovickas, A., Smith, B. & Yarbrough, J. (1973).Structure and genetic resources of peanuts, pp.47-133. In: Peanut- culture and uses. Published by the Amer. Peanut Res. and Ed. Assoc., Inc. Stillwater, Oklahoma.

• Ibiam, O. F. A. & Egwu, B. N. (2011). Postharvest seedborne diseases associated with the seeds of three varieties of groundnuts, (Arachis hypogaea L.) Nwakara, Kaki and Campalla. Agric. Biol. J. N. Am., 2(4): 598-602.

• Isleib, T. G., Wynne, J. C. & Nigam, S. N. (1994). Groundnut breeding, in The Groundnut Crop: A Scientific Basis for Improvement, ed. Smartt J., editor. (London: Chapman and Hall), 552-623.

• James, G. D. (1985). Diseases of field crops. 3rd Ed. Tata McGraw Hill Ltd. Bombay, New Delhi.

• Nigam, S. N. (2014). Groundnut at a glance. 121pp.

• Olayinka, B. U., Abdulrahaman, A. A., Andrauwus, Z. D., Aluko, T. A., Adebola, M. O. & Oladele, F. A. (2013).Traditional preparations and uses of groundnut in Nigeria. Annuals Food Science and Technology 2014; 15(1): 29-34.Submitted 14.11.2013, Accepted 25.03.2014.

• Prasad, T. (1992). Detection of fungi in stored grains and estimation on mycotoxins in seed pathology. Proc. CTA Seminar held at Copenhagen, Denmark Tech Centre for Agric and Rural Co-operation.

• Srilakshimi, B. (2003). Food Science. 3rd Ed. New Age International Publishers. 401pp.

• Stalker, H. T. (1997). Peanut (Arachis hypogaea L.). Field Crop Research 53: 205-217.

• USDA (2010). Refrigeration and food safety. Food safety in section service, May 2010.

• Wahua, T. A. T. (1999). Applied statistics for Scientific Studies. Tolukoya Print House, Ogun State, Nigeria. 362pp.

• World Health Organisation (WHO) (1987). Prevention of Liver cancer. Technical report, 691pp.

• Yu, J., Chang, P. K., Ehrlich, K. C., Cary, J. W. & Bhatnagar, D. (2004). Clustered pathway genes in aflatoxin biosynthesis. Applied Environ. Microbiol., 70: 1253-1262.




DOI: https://doi.org/10.24203/ajafs.v7i1.5697

Refbacks

  • There are currently no refbacks.


Copyright (c) 2019 Asian Journal of Agriculture and Food Sciences

Creative Commons License
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.