Kopi Luwak proteolytic enzymes which break down the beans' proteins, yielding shorter peptides and more free amino acids. The proteins also undergo non-enzymatic Maillard browning reactions in the later roasting process. Moreover, while inside a civet the beans begin to germinate by malting which also lowers their bitterness. Marcone also conducted an analysis on the volatile compounds which are responsible for the coffee's flavour and aroma, showing that there are significant differences from regular coffee. He concluded that: According to Dr. Davila Cortes, the altered protein structure degrades the effectiveness of the coffee as a diuretic. Few objective assessments of taste are
Kopi tiam is lighter in colour than normal coffee beans that uses sugar – hence the name 'white coffee'. Kopitiams in Indonesia are very similar to those in Malaysia or Singapore. Originally run by local Chinese people, they can be found in many residential areas. Old-fashioned kopitiams are usually located at shop houses, and often have a quite run-down appearance. The term kedai kopi or warkop (which stands for warung kopi) is more often used. More recently, modern kopitiams have emerged, and can be found in many shopping malls, particularly in big cities such as Jakarta, Medan, Batam and Surabaya. These attract