Determination of the Effect of Chemical Changes on Shelf Life of Tea (Camellia Sinencis) Accelerated Shelf Life Testing

Simple item page
dc.contributor.authorWeerasinghe, W.K.S.
dc.date.accessioned2021-11-08T08:57:17Z
dc.date.available2021-11-08T08:57:17Z
dc.date.issued2018
dc.description.abstractTea is in a highest position among global beverages, owing to its unique features; taste, color and aroma. Environmental factors affect on these organoleptic parameters and the shelf life of tea. Hence this study aimed to find the effect of storage temperature on chemical composition and the shelf life of pure and flavored black tea. Samples from both tea grades were stored at 30°C and 50°C for six weeks. Samples were subjected to sensory evaluation daily basis by professional tea tasters. Further samples were analyzed for total polyphenol, caffeine, theaflevins and thearubigins on weekly basis to identify the changes of chemical parameters and deterioration point. The temperature quotient method was used to calculate the Q10 values and the shelf life of each tea grade. Results revealed that accelerated storage temperature makes changes in chemicals in black tea, resulting reduction of its shelf life. Further, pure black tea and flavored black tea showed a shelf life of two years and one year respectively. Key words: Black tea, Storage temperature, Shelf lifeen_US
dc.identifier.otherUWU/EAG/14/0035
dc.identifier.urihttp://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/7582/EAG%2014%20035-27102021113455.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.relation.ispartofseries;UWU/EAG/14/0035
dc.subjectExport Agriculture Degree Programme (EAG)en_US
dc.titleDetermination of the Effect of Chemical Changes on Shelf Life of Tea (Camellia Sinencis) Accelerated Shelf Life Testingen_US
dc.title.alternativeResearch Article – EAG 2018en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
EAG 14 035-27102021113455.pdf
Size:
46.7 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Export Agriculture Degree Programme (EAG)