*Coffee - Production and Research*

[17] Casal S, Oliveira MB, Ferreira MA. HPLC/diode-array applied to the thermal degradation of trigonelline, nicotinic acid and caffeine in coffee. Food Chemistry. 2000;**68**(4):481-485

[18] Jl B, Tarka S Jr. HPLC determination of caffeine and theobromine in coffee, tea, and instant hot cocoa mixes. Journal of Food Science. 1983;**48**(3):745-747

[19] Perrone D, Donangelo CM, Farah A. Fast simultaneous analysis of caffeine, trigonelline, nicotinic acid and sucrose in coffee by liquid chromatography– mass spectrometry. Food Chemistry. 2008;**110**(4):1030-1035

[20] Amare M, Aklog S. Electrochemical determination of caffeine content in Ethiopian coffee samples using lignin modified glassy carbon electrode. Journal of Analytical Methods in Chemistry. 2017;**2017**:1-8

[21] Ly SY, Jung YS, Kim MH. Kwon Han I, Jung WW, Kim HS. Determination of caffeine using a simple graphite pencil electrode with square-wave anodic stripping voltammetry. Microchimica Acta. 2004; **146**(3–4):207-213

[22] Choi EJ, Bae SH, Park JB, Kwon MJ, Jang SM, Zheng YF, et al. Simultaneous quantification of caffeine and its three primary metabolites in rat plasma by liquid chromatography–tandem mass spectrometry. Food Chemistry. 2013; **141**(3):2735-2742

[23] Sereshti H, Samadi S. A rapid and simple determination of caffeine in teas, coffees and eight beverages. Food Chemistry. 2014;**158**:8-13

[24] Garrigues JM, Bouhsain Z, Garrigues S, de la Guardia M. Fourier transform infrared determination of caffeine in roasted coffee samples. Fresenius' Journal of Analytical Chemistry. 2000;**366**(3):319-322

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Section 5

Coffee Commercialization

Section 5
