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Response surface methodology (RSM) to evaluate both the extraction of triterpenes and sterols from jackfruit seed with supercritical CO2 and the biological activity of the extracts

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Abstract

Jackfruit seeds are an underestimate residue having important biological activity such as anti-inflammatory, cytotoxicity and antimicrobial effects. However few researches have been done for this material using alternative extraction technologies, so this study aimed to evaluate the extraction of triterpenes and sterols from jackfruit seed by applying high- and low-pressure techniques. Response surface methodology (RSM) was used to determine the best conditions of pressure, temperature and CO2 flow rate for extraction with supercritical CO2. The yield and profile of these compounds were compared with the low pressure technique, which was considered as a reference. In vitro biological tests of anti-inflammatory activity and cytotoxicity in L929 and RAW 264.7 cells were also performed. The best extraction conditions in SFE for sterols were 40 °C/20 MPa/4 mL min−1 (0.832 ± 0.007 mgSR g−1sample) and 40 °C/20 MPa/3 mL min−1 (0.800 ± 0.009 mgSR g−1sample), for triterpenes were 50 °C/12 MPa/4 mL min−1 (1.501 ± 0.004 mgTT g−1sample) and 45 °C/9.3 MPa/3.5 mL min−1 (1.485 ± 0.004 mgTT g−1sample). No cytotoxic activity was detected in L929 cells in the extracts obtained from ethanol up to concentration of 100 μg mL−1 of extract. The Pearson's coefficient indicated that the reduction in cell viability was related to the concentration of triterpenes. Anti-inflammatory assays showed that some extracts could inhibit the inflammatory action induced in RAW 264.7 cells at concentration of 30 μg mL−1 of extract. Our results justify the further exploration of these characteristics to obtain natural products for the pharmaceutical and food industries.

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Acknowledgements

The authors wish to thank UFSC (Federal University of Santa Catarina, Brazil), Center for Analysis of the Department of Chemical Engineering and Food Engineering (UFSC), and CAPES (Coordination for the Improvement of Higher Education Personnel, Brazil) for the financial support and scholarships that have contributed to the realization of this ongoing project.

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Correspondence to Deise Tramontin.

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Tramontin, D., Cadena-Carrera, S.E., Assreuy, J. et al. Response surface methodology (RSM) to evaluate both the extraction of triterpenes and sterols from jackfruit seed with supercritical CO2 and the biological activity of the extracts. J Food Sci Technol 58, 3303–3313 (2021). https://doi.org/10.1007/s13197-020-04876-7

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  • DOI: https://doi.org/10.1007/s13197-020-04876-7

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