Journal ArticleDOI
Microbial and enzymatic methods for the removal of caffeine
TLDR
Development of a process involving an enzymatic (specific) degradation of caffeine to non-toxic compound is necessary to solve the problems of chemical extraction of caffeine in food products as well as treating the caffeine containing waste products.About:
This article is published in Enzyme and Microbial Technology.The article was published on 2005-07-01. It has received 127 citations till now. The article focuses on the topics: Decaffeination & Caffeine.read more
Citations
More filters
Journal ArticleDOI
Gut microbiota mediate caffeine detoxification in the primary insect pest of coffee
Javier A. Ceja-Navarro,Fernando E. Vega,Ulas Karaoz,Zhao Hao,Stefan Jenkins,Hsiao Chien Lim,Petr Kosina,Francisco Infante,Trent R. Northen,Eoin L. Brodie,Eoin L. Brodie +10 more
TL;DR: It is shown that caffeine is degraded in the gut of H. hampei, and that experimental inactivation of the gut microbiota eliminates this activity, and Pseudomonas caffeine demethylase genes are expressed in vivo in the intestine confirming their key role.
Journal ArticleDOI
Production of Plant Secondary Metabolites: Examples, Tips and Suggestions for Biotechnologists.
Gea Guerriero,Roberto Berni,Roberto Berni,J. Armando Muñoz-Sánchez,Fabio Apone,Eslam M. Abdel-Salam,Ahmad A. Qahtan,Abdulrahman A. Alatar,Claudio Cantini,Giampiero Cai,Jean-Francois Hausman,Khawar Sohail Siddiqui,S.M. Teresa Hernández-Sotomayor,Mohammad Faisal +13 more
TL;DR: In this paper, the authors discuss the recent literature on the production of representatives of three plant secondary metabolite classes: artemisinin (a sesquiterpene), lignans (phenolic compounds) and caffeine (an alkaloid).
Journal ArticleDOI
Selective caffeine removal from green tea using supercritical carbon dioxide extraction
TL;DR: Caffeine and EGCG (epigallocatechin gallate) were extracted from green tea using supercritical carbon dioxide (SCCO 2 ) with water as a cosolvent.
Journal ArticleDOI
Catabolic pathways and biotechnological applications of microbial caffeine degradation
TL;DR: Development of biodecaffeination techniques using these enzymes or using whole cells offers an attractive alternative to the present existing chemical and physical methods removal of caffeine, which are costly, toxic and non-specific to caffeine.
Journal ArticleDOI
Effects of cosolvents on the decaffeination of green tea by supercritical carbon dioxide
Hyong Seok Park,Hee Jin Lee,Minhye Shin,Kwang Won Lee,Hojoung Lee,Young Suk Kim,Kwang Ok Kim,Kyoung Heon Kim +7 more
TL;DR: In this paper, the supercritical carbon dioxide (SC-CO2) was used for decaffeination of green tea leaves, which is known to be an ideal solvent, coupled with a cosolvent, such as ethanol or water.
References
More filters
Journal ArticleDOI
Metabolism of purine bases, nucleosides and alkaloids in theobromine-forming Theobroma cacao leaves
TL;DR: Conversion of theobromine to caffeine may be slow in cacao leaves, because no caffeine biosynthesis from 14 C-labelled purine bases and nucleosides was observed during 18 h incubations, exogenously supplied.
Journal Article
Caffeine degradation by Penecillium verrucosum in solid state fermentation of coffee pulp : critical effect of additional inorganic and organic nitrogen sources
Journal ArticleDOI
Novel studies on membrane extraction of bioactive components of green tea in organic solvents: part I
TL;DR: In this article, the removal of caffeine from the solution mixture of green tea extract while retaining the group of catechins known as polyphenols was investigated using different nanofiltration membranes.
Journal ArticleDOI
Studies on the Metabolic Control of Caffeine Turnover in Developing Endosperms and Leaves of Coffea arabica and Coffea dewevrei
TL;DR: Evidence is provided that the low caffeine content in leaves and endosperms of immature fruits of C. deweurei may be due to slow biosynthesis and fast degradation.
Journal ArticleDOI
Enzymes Involved in Theobromine Production from Caffeine by Pseudomonas putida No. 352
TL;DR: A monooxygenase specific for theobromine demethylation was purified from the cell-free extract of Pseudomonas putida No. 352 to homogeneity and appears to be demethylated to 7-methylxanthine at least by two enzymes.