Abuja Journal of Agriculture and Environment (AJAE)

EFFECT OF DURATION OF STORAGE ON NUTRITIVE VALUES OF LOCUST BEAN (PARKIA BIGLOBOSA) PULP
Author(s): Afolayan, M., Adamu, I.A and Salihu, E.A
Volume/Issue: Volume 1 , Issue 1 (2021)

ABSTRACT:

Evaluation of the effect of storage duration on the nutritive values of locust bean pulp (LBP) was investigated. Three samples of LBP were used (freshly harvested, sample stored for 1 year, and 2 years respectively) Sub – sample from each was tied in a clean polythene nylon and kept in deep freezer until when needed for analysis. Results showed no significant (P>0.05) difference in crude protein and NFE contents of the 3 samples of LBP (CP 3.21, 4.90 and 3.79; NFE 59.01, 66.67 and 56.93 respectively. Magnesium and calcium content of LBP stored for the period of 1 year were not significantly (P>0.05) different from the fresh LBP and was significantly (P<0.05) higher than that of LBP stored for 2 years. Also, there were no significant (P>0.05) difference between the potassium and zinc content of the fresh LBP and the one stored for the period of two years. There was a significant (P<0.05) difference in the Vitamin contents across the storage durations. However, the result of Vitamin B12 was statistically similar for the fresh LBP and the one stored for the period of 1 year and significantly (P<0.05) higher than the sample stored for 2 years. There was a linear increase in the total bacterial count with the period of storage, while the total fungal (yeast and mould) count followed a similar pattern with the percentage moisture content in the LBP samples. Organoleptic assessment of the pulp revealed a consistent change in the colour of the LBP in the order of Royal Yellow > Safety yellow > Golden brown colour respectively for the fresh, 1year and 2 years storage duration. Therefore, it was concluded that LBP could be preserved for off season utilization in feed formulation, because it is a promising cheaper alternative feedstuff in livestock ration.

KEYWORDS:

Parkia biglobosa, Locust bean pulp , Storage duration, Nutritive values