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. 2018;19(4):361-374

 

Journal Homepage

Journal Title: Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry

ISSN: 1582-540X (Print)

Publisher: Alma Mater Publishing House "Vasile Alecsandri" University of Bacau

Society/Institution: "Vasile Alecsandri" University of Bacau

LCC Subject Category: Technology: Chemical technology

Country of publisher: Romania

Language of fulltext: English, French

Full-text formats available: PDF

 

AUTHORS

Raquel Teixeira (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)
Joana Barbosa (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)
Helena Albano (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)
Cláudia Maciel (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)
Joana Silva (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)
Jorge A. Saraiva (Universidade de Aveiro, Departamento de Química, Laboratório de Química Orgânica e Produtos Naturais e Alimentos (QOPNA), Campus Universitário de Santiago, 3810-193 Aveiro, Portugal)
Sónia M. Castro (1Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal 2Universidade de Aveiro, Departamento de Química, Laboratório de Química Orgânica e Produtos Naturais e Alimentos (QOPNA), Campus Universitário de Santiago, 3810-193 Aveiro, Portugal)
Paula Teixeira (Universidade Católica Portuguesa, Escola Superior de Biotecnologia, CBQF – Centro de Biotecnologia e Química Fina, Rua Arquiteto Lobão Vital 172, 4202-401 Porto, Portugal)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 6 weeks

 

Abstract | Full Text

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.