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| Emulsion properties and whipping capabilities of commercial whipping creams |
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| DOI： |
| KeyWord:whipping cream emulsion stability whipping capability milk fat vegetable oil |
| FundProject:中央高校基本科研业务费专项资金资助（JUSRP 12004）；中国博士后科学基金面上资助（2021M691291） |
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| Abstract: |
| To provide references for scientific usages of commercial whipping creams, 19 representative samples with different storage requirements, mainly room temperature, refrigerated and frozen, were evaluated for their emulsion and whipping characteristics. The emulsion qualities were analyzed by centrifugation stability index, viscosity, particle size and microstructure, and the whipping capabilities were detected by the whipping time, overrun, leakage rate and whipped appearance. The results showed that centrifugation stability index of the creams stored at room temperature was 22.17%-32.68%, which was significantly higher than 1.36%-13.09% of refrigerated products and 2.97%-12.87% of frozen products. The viscosity and particle size distribution of room temperature-stored and refrigerated products were similar, with good fluidity and uniform distribution of fat globules; whereas frozen products were relative viscous and had no obvious fat globule structures. The whipping time of room temperature-stored and refrigerated creams were generally 132.44-291.28 s (79.49 s for only one refrigerated product), and the overrun were 111.49%-202.50% (only two refrigerated product was 92.30%,328.25% respectively), some of their foams might leak during the tests, and their ability to maintain whipped apperance was weak. In contrast, frozen products only took 89.91-158.52 s to be beatable, and the overrun was 240.39%-278.15% without leakage and with strong ability to maintain whipped apperance. In conclusion, room temperature-stored whipping creams showed the lowest emulsion stabilities but its whipping capabilities were close to those of refrigerated whipping creams; in contrast, frozen whipping creams were more suitable to be beaten due to their excellent whipping abilities. |
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