Culture medium composition
The present invention provides a culture method of cells and/or tissues including culturing cells and/or tissues in a suspended state by using a medium composition having an effect of preventing sedimentation of cells and/or tissues, which is afforded by substantially retaining the cells and/or tissues without substantially increasing the viscosity of the solution by nanofibers which have been added to the solution and uniformly dispersed in the liquid medium, and the like.
1. A method of proliferating an adherent cell, comprising suspension culturing the adherent cell in a medium composition comprising a chitin nanofiber attached to the adherent cell, wherein the medium composition has a chitin nanofiber content of 0.001% (weight/volume) to 0.1% (weight/volume).