Year 2017, Volume 4 , Issue 2, Pages 78 - 89 2017-02-01

Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE)

Gönül Serdar [1] , Ezgi Demir [2] , Münevver Sökmen [3]


This study was designed to develop a cost effective green extraction method to separate valuable chemicals from black tea waste (BTW) and tea dust called “caffeine dust” (CD). These materials are totally unwanted residue and treated as rubbish. Two extraction methods were used for extraction of waste materials obtained in three collection periods. In conventional extraction method, material was subjected to hot water extraction at 80 oC for 40 minutes. In microwave assisted extraction (MAE) method, different eco-friendly aqueous solvents (water, citric acid-water or ethanol-water) were used under a controlled 600 W microwave power at 80 oC for only 4 minutes treatment in a close microwave system. MAE and conventional method gave similar extract yields for both waste materials but MAE was more successful and economical completing the extraction in shorter time. Using citric acid-water solvent in MAE significantly increased the extraction of individual catechins such as epicatechin (EC) and epigallocatechin gallate (EGCG). This study showed that tea waste could be utilized for production of valuable chemicals using nontoxic solvents at extremely short extraction periods.

Tea waste, caffeine, catechins, microwave assisted extraction
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Subjects Biology
Published Date July
Journal Section Articles
Authors

Author: Gönül Serdar
Institution: KARADENIZ TEKNIK UNIV

Author: Ezgi Demir
Institution: KARADENIZ TEKNIK UNIV

Author: Münevver Sökmen
Institution: KARADENIZ TEKNIK UNIV

Dates

Publication Date : February 1, 2017

Bibtex @research article { ijsm288226, journal = {International Journal of Secondary Metabolite}, issn = {}, eissn = {2148-6905}, address = {Prof. Dr. İzzet KARA}, publisher = {İzzet KARA}, year = {2017}, volume = {4}, pages = {78 - 89}, doi = {10.21448/ijsm.288226}, title = {Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE)}, key = {cite}, author = {Serdar, Gönül and Demir, Ezgi and Sökmen, Münevver} }
APA Serdar, G , Demir, E , Sökmen, M . (2017). Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE). International Journal of Secondary Metabolite , 4 (2) , 78-89 . DOI: 10.21448/ijsm.288226
MLA Serdar, G , Demir, E , Sökmen, M . "Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE)". International Journal of Secondary Metabolite 4 (2017 ): 78-89 <http://ijsm.ijate.net/en/issue/27381/288226>
Chicago Serdar, G , Demir, E , Sökmen, M . "Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE)". International Journal of Secondary Metabolite 4 (2017 ): 78-89
RIS TY - JOUR T1 - Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE) AU - Gönül Serdar , Ezgi Demir , Münevver Sökmen Y1 - 2017 PY - 2017 N1 - doi: 10.21448/ijsm.288226 DO - 10.21448/ijsm.288226 T2 - International Journal of Secondary Metabolite JF - Journal JO - JOR SP - 78 EP - 89 VL - 4 IS - 2 SN - -2148-6905 M3 - doi: 10.21448/ijsm.288226 UR - https://doi.org/10.21448/ijsm.288226 Y2 - 2017 ER -
EndNote %0 International Journal of Secondary Metabolite Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE) %A Gönül Serdar , Ezgi Demir , Münevver Sökmen %T Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE) %D 2017 %J International Journal of Secondary Metabolite %P -2148-6905 %V 4 %N 2 %R doi: 10.21448/ijsm.288226 %U 10.21448/ijsm.288226
ISNAD Serdar, Gönül , Demir, Ezgi , Sökmen, Münevver . "Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE)". International Journal of Secondary Metabolite 4 / 2 (February 2017): 78-89 . https://doi.org/10.21448/ijsm.288226
AMA Serdar G , Demir E , Sökmen M . Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE). IJSM. 2017; 4(2): 78-89.
Vancouver Serdar G , Demir E , Sökmen M . Recycling of Tea Waste: Simple and Effective Separation of Caffeine and Catechins by Microwave Assisted Extraction (MAE). International Journal of Secondary Metabolite. 2017; 4(2): 89-78.