GE Yaojin, LI Yuhao, PENG Shengfeng, et al. Effect of Homogenization Pressure on the Stability and in Vitro Digestion of Flaxseed Oil Emulsion[J]. Science and Technology of Food Industry, 2023, 44(3): 84−94. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022040202.
Citation: GE Yaojin, LI Yuhao, PENG Shengfeng, et al. Effect of Homogenization Pressure on the Stability and in Vitro Digestion of Flaxseed Oil Emulsion[J]. Science and Technology of Food Industry, 2023, 44(3): 84−94. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022040202.

Effect of Homogenization Pressure on the Stability and in Vitro Digestion of Flaxseed Oil Emulsion

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  • Received Date: April 18, 2022
  • Available Online: November 28, 2022
  • In this study, flaxseed oil body was taken as the research object, and stable flaxseed oil body emulsion rich in α-linolenic acid was obtained through homogenization treatment, which provides a new way for residents to increase the intake of ω-3 unsaturated fatty acids in daily diet. Under the same homogenous conditions (3 min) each time, changing the homogenization pressure (40, 80, 120 MPa) and the number of times (1~3 times) of flaxseed oil emulsions, the effects of homogenization on the properties, environmental stability ( pH, ionic strength, thermal, oxidation stability) and storage stability, and digestive properties of flaxseed oil emulsions were investigated. The results showed that the absolute value of potential zeta potential increased and the particle size decreased significantly when flaxseed oil body was homogenized at 120 MPa for three times (P<0.05). After heat treatment at 50~90 ℃ for 30 min, the particle size and potential of homogenized flaxseed oil emulsions were stable, and it showed better oxidation stability and storage stability (P<0.05). With or without homogenization, flaxseed oil bodies were still unstable to pH4~5 and ionic conditions (P>0.05). The results of digestion showed that the homogenized flaxseed oil body emulsion had a higher release rate of fatty acids (FFA). In conclusion, the homogenization treatment significantly reduced the particle size of flaxseed oil emulsion, enhanced the storage stability and oxidation stability of flaxseed oil body, and accelerated the release rate of fatty acid.
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