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Interaction between phenolic compounds and lipase: the influence of solubility and presence of particles in the IC50 value
Lund University.
Kristianstad University, Faculty of Natural Science, Research Environment Food and Meals in Everyday Life (MEAL). Kristianstad University, Faculty of Natural Science, Avdelningen för mat- och måltidsvetenskap. Lund University.ORCID iD: 0000-0002-0002-661X
Lund University.
Bolivia.
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2018 (English)In: Journal of Food Science, ISSN 0022-1147, E-ISSN 1750-3841, Vol. 83, no 8, p. 2071-2076Article in journal (Refereed) Published
Abstract [en]

Obesity is one of the principal human health problems and one of the main treatments against it is the inhibition of pancreatic lipase, the main responsible enzyme of lipid digestion. For that purpose, previous studies have tested several phenolic compounds against lipase, without considering their aggregation behavior in aqueous solutions. Because of this, the present study focuses on understanding how the solubility and the presence of particles affect the IC50 value of the interaction between lipase and phenolic compounds present in beverages like fruit juices and teas. Therefore, the inhibitory capacity against pancreatic lipase and the aggregate formation of 9 phenolic compounds (quercetin, rutin, myricetin, catechin, epigallocatechin gallate, cyanidin, caffeic acid, chlorogenic acid, and vanillic acid) were analyzed. The results obtained together with the solubility data from literature were treated by principal component analysis and indicate that the IC50 value does not correlate with the solubility or aggregate formation of the phenolic compounds. However, the IC50 values of phenolic compounds which aggregate during the assay conditions have low reproducibility. This study shows that the aggregate formation of phenolic compounds plays an important role during in vitro assays for pancreatic lipase inhibition and should be considered in future experiments as it can lead to false positive results. In terms of particle formation, the flavonoids investigated in this study are more prone to aggregation compared to the phenolic acids.

Place, publisher, year, edition, pages
2018. Vol. 83, no 8, p. 2071-2076
Keywords [en]
inhibition, lipase, particles, phenols, reproducibility
National Category
Nutrition and Dietetics
Identifiers
URN: urn:nbn:se:hkr:diva-18598DOI: 10.1111/1750-3841.14217ISI: 000441290500008PubMedID: 30020550OAI: oai:DiVA.org:hkr-18598DiVA, id: diva2:1241495
Available from: 2018-08-23 Created: 2018-08-23 Last updated: 2018-08-23Bibliographically approved

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Research Environment Food and Meals in Everyday Life (MEAL)Avdelningen för mat- och måltidsvetenskap
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