What is the function of methanal in embalming fluids?

Methanal, more commonly known as formaldehyde, plays a crucial role in embalming fluids primarily as a preservative. Its primary function is to prevent decay and decomposition of the body after death by cross-linking proteins, which effectively stabilizes the tissues. This action is vital in preserving the appearance and integrity of the body for viewing and burial.

In the context of embalming, the ability of methanal to denature proteins is what makes it so effective at inhibiting bacterial and fungal growth, thus prolonging the preservation of the body. Formaldehyde is a key ingredient in most modern embalming formulations, enabling funeral professionals to ensure that the deceased can be presented in a dignified manner during memorial services.

While it may have some secondary effects, such as masking odors associated with decomposition, its primary and most significant role remains that of a preservative.