Volume 46, Issue 9 e16974
ORIGINAL ARTICLE

Effects of herb (mint, ginger, and cinnamon) addition on the formation of 3-monochloropropanediol esters in the refined olive oil

Farzaneh Kamandloo

Farzaneh Kamandloo

Department of Food Science, Engineering, and Technology, University of Tehran, Karaj, Iran

Contribution: Data curation, ​Investigation, Software, Writing - original draft

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Karamatollah Rezaei

Corresponding Author

Karamatollah Rezaei

Department of Food Science, Engineering, and Technology, University of Tehran, Karaj, Iran

Correspondence

Karamatollah Rezaei, Department of Food Science, Engineering, and Technology, University of Tehran, Karaj, Iran.

Email: [email protected]

Contribution: Conceptualization, Formal analysis, Funding acquisition, ​Investigation, Methodology, Project administration, Resources, Supervision, Validation, Writing - review & editing

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Ali Aghakhani

Ali Aghakhani

Department of Food Science, Engineering, and Technology, University of Tehran, Karaj, Iran

Contribution: Formal analysis

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First published: 05 August 2022
Citations: 1

Abstract

The inhibitory effects of using extracts and leaf powders from mint (Mentha spicata), ginger (Zingiber officinale), and cinnamon (Cinnamomum verum) were investigated on the formation of 3-monochloropropanediol esters (3-MCPD esters) in the refined olive oil at temperatures 100–200°C using Taguchi's experimental design. The initial concentration of 3-MCPD esters in the refined olive oil before the treatment was 0.33 mg/100 g of oil. The greatest reducing effect was found for mint powder (0.16 mg/100 g of oil). The inhibitory effects of extracts and powders were similar. Based on the Taguchi's approach for the analysis of the data, the best level for the extract and/or the powder of mint or ginger was 0.04 mg for 100 g refined olive oil. During the storage of refined olive oil for 1 and 2 months, mint and ginger as both dry extract and plant powder reduced the formation of 3-MCPD esters.

Practical applications

In the current study, during 1 and 2 months of storage of refined olive oil, decreases in the production of 3-monochloropropanediol esters were observed in samples containing mint and ginger (as a powder or in their extract forms). Therefore, to avoid the production of this toxic chemical in olive oil after it is packaged, mint and ginger can be combined with the oil immediately after its refining stage. Results from the current study can encourage manufacturers to use these natural antioxidants for inhibiting the formation of 3-monochloropropanediol esters.

CONFLICT OF INTEREST

The authors declare no conflict of interest.

DATA AVAILABILITY STATEMENT

Data will be available upon request." cd_value_code="text

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