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Low-field nuclear magnetic resonance (Lf-NMR) has been utilized to research the water state and distribution of high-moisture soft margarine. Bonding mixture of β-sitosterol and γ-oryzanol has been utilized as grease texture material in the experiment of the paper. The proton transverse relaxation time (T2) was determined by Carr-Purcell-Meiboom-Gill (CPMG) pulse sequences. The distribution of the T2 relaxation indicated that the relaxation time of 40~150 ms region could reflect the information of fat in the samples. The T2 relaxation time of bound water and free water were decreased, when adding bonding mixture of β-sitosterol and γ-oryzanol, the free water content demonstrated strong bonding effect between bonding mixture and water molecules significantly. When the addition of bonding mixture reached 4%, it had a 17.8% decreasing in free water compared to the blank sample. As a result, the bonding mixture of β-sitosterol and γ-oryzanol could improve the microstructure and sensory quality of the soft margarine sample, which was observed by polarized light microscopy and sensory evaluation. ©, 2015, Editorial Department, Chinese Cereals and Oils Association. All right reserved.
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Journal of the Chinese Cereals and Oils Association
ISSN: 1003-0174
CN: 11-2864/TS
Year: 2015
Issue: 5
Volume: 30
Page: 47-52
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WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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