Function of Poem DM-100V
Bacteriostatic Emulsifier

DM-100V is an emulsifier possessing a very wide range of bacteriostatic spectrum. Additionally, compared with the middle chain length monoglycerides used up until this time as an bacteriostatic agent, this gives a only a very subtle, uncomfortable taste.
Therefore, it is expected to be used in various applications.


Effect of Poem DM-100V on Bacteriostatic Agent (inoculated bacteria cells: 102)
Bacteria Evaluation Gram's stair   Bacteria Evaluation Gram's stair
Evaluation: effective inhibitory concentration A: 10ppm / B: 50 ~ 100ppm / C: 1000ppm over
Bacillus subtilis A + Escherichia coli C -
Bacillus stearothermophilus A + Salmonell enteritidis C -
Bacillus cereus A + Alcaligenes xylosoxidans C -
Clostridium pasteurianum A + Pseudomonos fragi C -
Sporolactobacillus inulins A + Micrococcus roseus A +
Lactobacillus sp. A + Saccharomyces cerevisiae A  
Streptococcus thermophilus A + Byssochlamys nivea B  
Staphylococcus aureus A +      

This table shows the bacteriostatic effect of DM-100V, a test displaying an effective inhibitory concentration by medium.
DM-100V inhibits the growth of gram-positive bacteria, but doesn't have the bacteriostatic effect on gram-negative bacteria.


Bacteriostatic Agent Comparison of DM-100V with Lower Fatty Acids Monoglycerides

Effective inhibitory concentration(ppm)

  DM-100V C8MG C10MG C12MG
B.subtilis 10 100 100 10
B.stearothermophilus 10 100 100 100
B.cereus 10 500 500 100
C.pasteurianum 10 500 100 50
S.inulins 10 50 100 10
L.sp 10 500 250 100
S.thermophilus 10 50 100 50
S.aureus 10 500 100 50
E.coli 1000~ 100 50 500
S.enteritidis 1000~ 500 100 1000~
A.xylosoxidans 1000~ 100 500 1000~
P.fragi 1000~ 500 100 1000~
M.roseus 10 100 100 10
S.cervisiae 10 500 100 10
B.nivea 100 1000~ 500 1000~

This table shows DM-100V compared with middle chain length monoglycerides on the bacteriostatic effect.
DM-100V is more effective on gram-positive bacteria than middle chain length monoglycerides. DM-100V has little effect on gram-negative bacteria
But if DM-100V is used together with middle chain length monoglycerides, it will be more effective in various bacteria.

© 2013-2018 RIKEN VITAMIN Co., Ltd.