Hydroxypropyl methyl cellulose meeting the food additive specification is consequently considered safe for all animal species. Setting a maximum content in complete diets is not considered necessary. The low toxicity of celluloses shown in the toxicological studies (see Section 3.2.2) support this conclusion.
The Joint FAO/WHO Expert Committee on Food Additives (JECFA, 1990) assessed the compound together with six other cellulose derivatives and allocated a group acceptable daily intake (ADI) of ‘not specified’. The Scientific Committee for Food (SCF, 1994, 1999) who assessed five closely related cellulose derivatives, also allocated a group ADI of ‘not specified’. The most recent evaluation of cellulose and cellulose derivatives, including HPMC for their use as food additives was done in 2018 by the EFSA Panel on Food Additives and Nutrient Sources added to Food (ANS) (EFSA ANS Panel, 2018), which concluded that there was no need to set a numerical ADI.
Regulatory status and approvals:
RDP can be used as a feedstock material in 3D printing, allowing for the creation of complex and intricate designs that would be difficult or impossible to produce using traditional manufacturing methods RDP can be used as a feedstock material in 3D printing, allowing for the creation of complex and intricate designs that would be difficult or impossible to produce using traditional manufacturing methodsredispersible polymer powder rdp. RDP can also be used to create prototypes and models, speeding up the design and development process.
This temperature-dependent behavior makes HEC particularly useful in applications where viscosity control is crucial This temperature-dependent behavior makes HEC particularly useful in applications where viscosity control is crucialhydroxyethyl cellulose thickening mechanism.
In the construction sector, HPMC gel is added to tile adhesives to improve their workability, water retention and bonding properties. It ensures a consistent and strong bond between the tile and the substrate.