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The effect of phytosterol organogelators (β-sitosterol : γ-oryzanol=2 : 3, m : m) on the network structure and oxidation characteristics of soybean oil oleogels were studied. The results showed that when the addition amount of phytosterol organogelators was within the range of 2% to 10%, the storage modulus (G') of soybean oil oleogels of 6% was always higher than loss modulus (G''), which indicated that the system had formed a stable solid-like gel structure. Polarized light microscopy showed that 6% oleogels appeared a regular and compact aggregation state after stored at 45 for 10 days, with a peroxide value of 15.59 mmol/kg, a malondialdehyde content of 1.49 mg/kg, and a headspace oxygen consumption of 24.19%, showed the best oxidation stability. 2% to 10% of β-sitosterol or γ-oryzanol was added to soybean oil respectively, the headspace oxygen consumption of the sample showed that β-sitosterol had an anti-oxidant effect, and γ-oryzanol had a pro-oxidant effect. After heated at 180 for 2.5 hours, the headspace oxygen consumption of 6% phytosterol oleogels was 5.00% lower than the control, showed a good thermal oxidation stability. Meanwhile, both Rao and Rad acquired from 1H NMR spectra had a good positive correlation with the total oxidation value of phytosterol oleogels during the thermal oxidation at 70 . © 2022, Editorial Office of Journal of CIFST. All right reserved.
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Journal of Chinese Institute of Food Science and Technology
ISSN: 1009-7848
CN: 11-4528/TS
Year: 2022
Issue: 1
Volume: 22
Page: 155-162
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 7
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