In tandem with such an observation, as cream being
a growth medium that contained only traces of protein in this
study, the L. helveticus could have possessed a hydrophobic
S-layer that had better binding to fat globules which thus retained
a higher composition of fats in the resulting butter upon churning.
Furthermore, the association preference of cells towards fat globule
membranes could also have strengthened and prohibited the
rupturing of MFGM, which thus retained the liquid fat to be
released into the buttermilk. The proposed mechanism would need
further elucidation. Additionally, the higher fat content in LH butter
was also speculated to be due to milk fat hydrolysis that would
have occurred during the fermentation of cream