TY - JOUR
T1 - Sporicidal activities and mechanism of surfactant components against Clostridium sporogenes spores
AU - Cho, W. I.
AU - Chung, M. S.
N1 - Publisher Copyright:
© 2018, Association of Food Scientists & Technologists (India).
PY - 2018/11/1
Y1 - 2018/11/1
N2 - The sporicidal activities of seven kinds of antimicrobial agent were investigated in order to screen for novel inactivation agents to apply to Clostridium sporogenes spores. Antimicrobial agents based on surfactant components, as poly-l-lysine, thiamine dilaurylsulfate, and torilin, were more effective than other agents. The degree of spore reduction with 1–2% surfactant components was 1.5–2.5 log CFU/mL. The HLB value (hydrophile-lipophile balance) related to denature protein of spores coat on surfactants with sporicidal activity was ranged from 6 to 16. Average HLB value and spore killing effect was inversely correlated. The proteins on spore structures seemed to be disorganized due to binding between polar groups of coats and hydrophilic and hydrophobic groups of surfactant components, resulting in killing of spores. The components that were effective to inactivate C. sporogenes spores had a chemical structure containing CH3, OH, COOH, sulfate groups, and a double bond. Furthermore, hydrophobic surfactants were more effective than hydrophilic surfactants in inactivating spores. This was likely due to the type of hydrophobic surfactant and to the involvement of hydrophobic interactions on coat of spores.
AB - The sporicidal activities of seven kinds of antimicrobial agent were investigated in order to screen for novel inactivation agents to apply to Clostridium sporogenes spores. Antimicrobial agents based on surfactant components, as poly-l-lysine, thiamine dilaurylsulfate, and torilin, were more effective than other agents. The degree of spore reduction with 1–2% surfactant components was 1.5–2.5 log CFU/mL. The HLB value (hydrophile-lipophile balance) related to denature protein of spores coat on surfactants with sporicidal activity was ranged from 6 to 16. Average HLB value and spore killing effect was inversely correlated. The proteins on spore structures seemed to be disorganized due to binding between polar groups of coats and hydrophilic and hydrophobic groups of surfactant components, resulting in killing of spores. The components that were effective to inactivate C. sporogenes spores had a chemical structure containing CH3, OH, COOH, sulfate groups, and a double bond. Furthermore, hydrophobic surfactants were more effective than hydrophilic surfactants in inactivating spores. This was likely due to the type of hydrophobic surfactant and to the involvement of hydrophobic interactions on coat of spores.
KW - Clostridium sporogenes spores
KW - HLB value
KW - Hydrophilic
KW - Hydrophobic
KW - Surfactant components
UR - http://www.scopus.com/inward/record.url?scp=85052972805&partnerID=8YFLogxK
U2 - 10.1007/s13197-018-3384-7
DO - 10.1007/s13197-018-3384-7
M3 - Article
AN - SCOPUS:85052972805
SN - 0022-1155
VL - 55
SP - 4675
EP - 4680
JO - Journal of Food Science and Technology
JF - Journal of Food Science and Technology
IS - 11
ER -