A Systematic Mapping Study of Coffee Quality throughout the Production-to-Consumer Chain

Table 1

Keywords based on the research questions.

RQ	Keywords
2	Coffee, quality, coffee quality, cup quality, beverage quality, metabolites, flavor, bean quality
3	Correlation, discrimination, improve, measure, properties
4	Infrared, chromatography, PCR, RMN, sensory, chemical, antioxidant, mycotoxins, ochratoxin, pesticide, fungicide, yeast, caffeine, trigonelline, chlorogenic, sugars, lipids, metabolites, metals
5	Arabica, canephora, liberica
6	Roasted coffee, green coffee, brew, coffee cherries, espresso
7	Pre-harvest, post-harvest, rust, pest, harvest, post-harvest, dehulling, depulping, drying, fermentation, hampei, organic, storage, soil, washing, defects, origin, specialty coffee