Silas Lin and the Lost City of Souls Chapter 117

Silas Lin asked: "Can you still change back?"

"No, the Bamboo Sword and I are not compatible and cannot change at will." Guozi grabbed their hands and swung, "If you want to go back, I will return to my body and return the sword to you."

The true nature of the fruit is Meiren En. This time it transformed, by chance, the broken bamboo did not transform, but the fruit that was not supposed to transform did.

And according to Guozi, Zhezhu doesn't know when he will be able to take form.

Therefore, fruit cannot disappear out of thin air.