期刊
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
卷 102, 期 13, 页码 6156-6162出版社
WILEY
DOI: 10.1002/jsfa.11969
关键词
pectin methylesterase; relative turbidity; viscosity; particle size; relative sediment height
资金
- University Grants Commission
This study demonstrates that adding lemon PMEI can stabilize the cloud destabilization of fruit juices, improve juice quality, and result in uniform distribution of cloud particles in the juice system.
BACKGROUND Cloud destabilization is a significant quality defect of cloudy fruit juices. A proteinaceous inhibitor (PMEI) of pectin methylesterase (PME), identified in lemon, with a fold purity of 89.13, was used to stabilize the cloud of freshly prepared sweet lime, orange, and lemon juice. RESULTS Lemon PMEI was able to inhibit the PME activity of all three fruit juices. In this study addition of calculated amounts of lemon PMEI to the three juice systems was based on the total PME units present in each juice. Relative turbidity, viscosity, pH, and zeta -potential of the PMEI-treated juices were stable, resulting in uniform distribution of cloud particles throughout the juice system. The sedimentation rate in PMEI treated juices was very low, with cloud particles having smaller particle size diameter. CONCLUSION This work demonstrates an alternative option that might create new potential to control the quality deterioration in cloudy fruit juices. (c) 2022 Society of Chemical Industry.
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