AI Article Synopsis
- Instantaneous controlled pressure drop (DIC) technology enhances the disruption of plant cells in green tea processing, leading to structural changes in the tea leaves that improve extraction.* -
- DIC increases the release of cell contents, resulting in significant color changes and improved infusion of polyphenols and amino acids, with a notable rise in redness compared to traditional methods.* -
- The DIC method yields a higher concentration of tea polyphenols in the first brew—35% more for twisted and needle tea and 15% more for flat tea—suggesting its effectiveness for producing both traditional and new types of green tea.*
Article Abstract
Instantaneous controlled pressure drop (DIC) was applied to obtain a suitable cell disruption extent as a technology in green tea processing. Microstructural observations showed that DIC increased cell disruption in an even manner as reflected from loosened palisade, distorted cells, widened space between cells, disrupted and rearranged cellular membrane in tea leaves. Color difference determination supported that DIC could facilitate the release and transport of cell contents. DIC sample showed a rise in redness, over 2.5 times greater than the control after spreading naturally for 24 h. Chemical determination revealed a better infusion behavior of tea polyphenols and amino acids in green tea manufactured by DIC method both at high and low temperature. The increase in tea polyphenols content in liquor for the first brew from twisted and needle tea was about 35% and that from flat tea was about 15% in DIC method over the traditional processing. These results suggest that DIC process can be applied in green tea processing for both a traditional product and a new kind of tea capable of making with cold water.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3857408 | PMC |
| http://dx.doi.org/10.1007/s13197-011-0466-1 | DOI Listing |
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