orosity, while ‘b’ represents the “resistance to compaction” of the material. Hence, the 1/b is considered to be related to the cohesive forces of
the powder particles. The parameter ‘a’ for guava tablets was the highest
followed by mixed fruit tablets and then followed by pitaya tablets. This
indicated that guava tablets possessed the highest initial porosity. This is
attributed to the mean particle size of guava powder, which was larger
than that of the pitaya powder (Table 3). The 1/b parameter is directly
proportional to the ‘a’ parameter representing the ‘a’ degree of compression achieved by the applied pressure. Hence, a higher pressure
needs to be applied for producing guava tablets to prevent it from deformation compared to pitaya and mixed fruit tablets. Powder having
lower ‘a’ and ‘1/b’ values are more cohesive and cohesive powders are
poor in flow. Pitaya powder was the most cohesive powder compared
to that of guava (Table 3). The higher content of soluble fiber and broken
hard seeds present in it might be the main reason of its low cohesiveness. The cohesiveness of pitaya powder compared to maltodextrin