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Advisor(s)
Abstract(s)
Slime from earth snails (Helix aspersa maxima) is a sub-product often used in the cosmetic industry. Due to its origin, a decontamination process ought to be considered. After exposure to UV radiation, no significant (P > 0.05) reduction of the initial microbial load of slime was observed, while treated at 60 °C, a decrease of 4.0 log CFU∙mL-1 was obtained (when compared to non-treated slime). A similar reduction was attained for pressurized (500 MPa) slime. The sequential combination of temperature and pressure treatment had a similar effect (P > 0.05) on the microbial load when compared to 400 MPa (30 min), but the reduction was higher when compared to the less intense treatments (60 °C, 15 min; 400 MPa, 15 min). Overall, the results suggest that pressure ( 400 MPa) is a promising technology for processing snail slime, which can have positive effects on its microbial load, for further use in the cosmetic industry
Description
Keywords
High pressure Microorganisms Snail (Helix aspersa maxima) Temperature UV radiation
Pedagogical Context
Citation
Teixeira, R., Barbosa, J., Albano, H., Maciel, C., Silva, J., Saraiva, J.A., Castro, S.M., Teixeira, P. (2018). Processing slime from snail (Helix aspersa maxima): a preliminary study on the effect on microbial load. Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 19(4), 361 –373
Publisher
Vasile Alecsandri, University of Bacău