Lipid Composition Analysis of Cricket Oil from Crickets Fed with Broken Rice-Derived Bran
Ryosuke Sogame1,2, Taiki Miyazawa1,2, Masako Toda1,2
1Graduate School of Agricultural Science, Tohoku University, Sendai 980-8572, Miyagi, Japan.
Insects
|September 27, 2025
Summary
Feeding crickets rice bran significantly altered their oil's lipid profile. Cricket oil from rice bran-fed insects showed increased glycolipids and oleic acid, enhancing nutritional quality.
Area of Science:
- Agricultural Science
- Food Science
- Entomology
Background:
- Cricket oil is a potential source of valuable lipids.
- Dietary interventions can modify the nutritional composition of insect oils.
- Rice bran is a byproduct rich in lipids and nutrients.
Purpose of the Study:
- To investigate the impact of rice bran supplementation on cricket lipid profiles.
- To analyze changes in lipid classes and fatty acid composition of cricket oil.
- To assess the potential of rice bran to enhance cricket oil nutritional quality.
Main Methods:
- Crickets (Acheta domesticus) were fed either rice bran or control feed for seven days prior to oil extraction.
- Lipid classes were identified using thin-layer chromatography.
- Neutral lipids, phospholipids, and glycolipids were quantified by solid-phase extraction.
- Fatty acid composition was determined using Gas Chromatography-Flame Ionization Detection (GC-FID).
Main Results:
- Cricket oil from rice bran-fed groups showed a higher glycolipid ratio compared to controls.
- Oleic acid proportion was significantly increased in cricket oil from the rice bran-fed group.
- The omega-6/omega-3 ratio was significantly higher in all lipid fractions of rice bran-fed crickets.
Conclusions:
- Dietary rice bran significantly alters the lipid profile of cricket oil.
- Rice bran supplementation can enhance the nutritional value of cricket oil.
- This strategy offers a method for improving the quality of insect-derived lipids.
