**8.2 Relationship between aflatoxins producing** *A. flavus* **and mean aflatoxins concentrations**

The regression analysis between toxigenic *A. flavus* percentage and mean aflatoxin concentrations which was positively correlated by observing regression equation where the slope was = 0.55 and y-intercept was = 50.14, coefficient of


*\*Significant at 5 % level of significance. Least significant difference (LSD) at P = 0.05 was used for comparing means and the P values were 0.00.*

*\*\*Significant at 1 % level of significance. Least significant difference (LSD) at P = 0.05 was used for comparing means and the P values wee 0.00. Data are the averages of three biological replications. The regulatory limits for fumonisin is 1 ppm (10 μg/kg).*

### **Table 1.**

*Levels of Total aflatoxins concentration in stored maize grains collected from the stores of traders of fifteen maize growing areas of Bangladesh.*

*Aflatoxins and Fumonisins Contamination of Maize in Bangladesh: An Emerging Threat… DOI: http://dx.doi.org/10.5772/intechopen.101647*

determination, R2 = 0.198 and coefficient of correlation, r = 0.44 which depicted that 1 % surges of toxigenic *A. flavus* in maize grains ultimately rised 50.137 μg/ kg aflatoxin concentration. In terms of 5 % surges of toxigenic *A. flavus* in maize grains, the aflatoxin concentration was increased up to 2.75 μg/kg and when toxigenic *A. flavus* increased 20 % in maize grains, the aflatoxin concentration was escalated up to 11.0 μg/kg (**Figure 1**).
