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Physicochemical Properties of Mealworm (Tenebrio molitor Larva) Oil and its Hypolipidemic Effect as a Replacement for Dietary Saturated Fat in Mice

Physicochemical Properties of Mealworm (Tenebrio molitor Larva) Oil and its Hypolipidemic Effect... This study analyzes the physicochemical properties of pressed mealworm (Tenebrio molitor larva) oil (PMO) and evaluates the beneficial effects as a replacement for dietary saturated fat. PMO has high contents of unsaturated fatty acids, such as oleic acid and linoleic acid. PMO has a higher γ‐tocopherol content, brighter yellow color, lower ρ‐anisidine value, and total oxidation value than that of lard or olive oil. The cholesterol content of PMO is lower than that of lard. The quality and stability of PMO are better than those of olive oil and lard. After feeding the mice for 12 weeks a high‐fat diet (45% kcal from fat) by replacing the lard with PMO, the serum lipids (free fatty acid and triglyceride), LDL‐cholesterol, nonHDL‐cholesterol, atherogenic index, and insulin levels are significantly lower than those of the control group. PMO replacement reduces the hepatic lipid contents and lipid droplets compared to the control group, which is mediated by down‐regulating the gene expression of the fatty acid uptake (CD36), lipogenesis transcription factors (PPARγ and ChREBP), and lipid biosynthesis‐related enzymes (SCD1 and FAS). These results suggest that PMO is a good quality oil source with potential as a substitute lipid for saturated animal fat. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Journal of Lipid Science and Technology Wiley

Physicochemical Properties of Mealworm (Tenebrio molitor Larva) Oil and its Hypolipidemic Effect as a Replacement for Dietary Saturated Fat in Mice

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References (3)

Publisher
Wiley
Copyright
© 2022 Wiley‐VCH GmbH
ISSN
1438-7697
eISSN
1438-9312
DOI
10.1002/ejlt.202100213
Publisher site
See Article on Publisher Site

Abstract

This study analyzes the physicochemical properties of pressed mealworm (Tenebrio molitor larva) oil (PMO) and evaluates the beneficial effects as a replacement for dietary saturated fat. PMO has high contents of unsaturated fatty acids, such as oleic acid and linoleic acid. PMO has a higher γ‐tocopherol content, brighter yellow color, lower ρ‐anisidine value, and total oxidation value than that of lard or olive oil. The cholesterol content of PMO is lower than that of lard. The quality and stability of PMO are better than those of olive oil and lard. After feeding the mice for 12 weeks a high‐fat diet (45% kcal from fat) by replacing the lard with PMO, the serum lipids (free fatty acid and triglyceride), LDL‐cholesterol, nonHDL‐cholesterol, atherogenic index, and insulin levels are significantly lower than those of the control group. PMO replacement reduces the hepatic lipid contents and lipid droplets compared to the control group, which is mediated by down‐regulating the gene expression of the fatty acid uptake (CD36), lipogenesis transcription factors (PPARγ and ChREBP), and lipid biosynthesis‐related enzymes (SCD1 and FAS). These results suggest that PMO is a good quality oil source with potential as a substitute lipid for saturated animal fat.

Journal

European Journal of Lipid Science and TechnologyWiley

Published: Jul 1, 2022

Keywords: dietary fat; edible insect oil; hyperlipidemia, mealworm; Tenebrio molitor larva

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