Why is the pumpcken leaves breaks the bolus of nshima when eating

I am sorry, but I couldn't understand your question. Could you please rephrase it?

The breaking of bolus by pumpkin leaves while eating nshima could be due to several reasons:

1. Texture and Fiber: Pumpkin leaves are relatively tough and have a fibrous texture. When mixed with the soft and sticky consistency of nshima (a traditional Zambian dish made from maize meal), the chewing action may cause the leaves to break or tear the bolus into smaller pieces.

2. Mechanical Action: Chewing involves the movement of the jaw and the mashing action of teeth. When consuming nshima with pumpkin leaves, the mechanical action of chewing exerts force on the bolus, potentially leading to its breaking apart.

3. Enhanced Digestion: The presence of pumpkin leaves in nshima could aid in digestion. By breaking down the bolus into smaller pieces, the surface area for enzymes and digestive fluids to act upon increases, promoting better digestion and nutrient absorption.

It's important to note that this explanation assumes the context of traditional Zambian cuisine, where pumpkin leaves are commonly consumed with nshima.