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- W2896464384 abstract "Tea cream (TC) is the important problem of the storage of concentrated black tea (CBT), before distribution to ready to drink industry. It has characteristics of colloidal and insoluble compounds, resulting many economic losses. A simple and effective methods are still required for CBG industry. The objectives of this research was to reduce TC occurred using several speed of centrifugation. CBT was centrifuged at speed 2,000, 4,000, 5,000 and 6,000 RPM for 20 minutes, and the clear fraction was stored at room temperature for 21 days. The untreated CBT was also performed as a control. Samples were taken to analyze caffeine (CF), total catechin content (TCC), gallated catechin (GaC), ungallated catechin (uGaC), theaflavin (TF), thearubigin (TR), colour, turbidity and %TC. It was found that tea cream formed rapidly within 1 day of storage for the control. Surprisingly, centrifugation can slow down the TC formation as long as 21 days. The results showed that the turbidity was increased during storage and no significant difference (p>0.05) with the control. As the TC formed, TPC, TF and TR decreased. Caffeine, TCC, GaC and uGaC significantly decreased as the amount of TC increased. The obviously decreased amount of GaC led to the assumption that it was the major component causing TC formation in CBT. Centrifugation was recommended for CBT industry which the minimum speed required for effective prevention of TC was 4,000 RPM." @default.
- W2896464384 created "2018-10-26" @default.
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- W2896464384 date "2017-07-27" @default.
- W2896464384 modified "2023-09-22" @default.
- W2896464384 title "Effect of Centrifugation to Inhibit Tea Cream Formation in Concentrated Black Tea" @default.
- W2896464384 hasPublicationYear "2017" @default.
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