User talk:Adamgunawan

History
The origin of Kopi Luwak is closely connected with the history of Coffee production in Indonesia. In early 18th century The Dutch established the cash-crop plantations in their colony in Dutch East Indies islands of Java and Sumatra, including Arabica coffee introduced from Yemen. During the era of Cultuurstelsel (1830—1870), the Dutch prohibited the native farmers and plantation workers to pick coffee fruits for their own use. Yet the native farmers wanted to have a taste of the famed coffee beverage. Soon the natives learned that certain species of musang or luwak (Asian Palm Civet) consumed these coffee fruits, yet they left the coffee seeds undigested in their droppings. The natives collect these Luwak's dropping coffee seeds; clean, roast and grind it to make coffee beverage. The fame of aromatic civet coffee spread from locals to Dutch plantation owners and soon become their favorites, yet because of its rarity and unusual process, the civet coffee was expensive even in colonial times.

Cultivars, blends, and tastes
Kopi luwak is a name for many specific cultivars and blends of arabica, robusta, liberica, excelsa or other beans eaten by civets, hence the taste can vary greatly. Nonetheless, kopi luwak coffees have a shared aroma profile and flavor characteristics, along with their lack of bitterness.

Kopi luwak tastes unlike heavy roasted coffees, since roasting levels range only from cinnamon color to medium, with little or no caramelization of sugars within the beans as happens with heavy roasting. Moreover, kopi luwaks which have very smooth profiles are most often given a lighter roast. Iced kopi luwak brews may bring out some flavors not found in other coffees.

Sumatra is the world's largest regional producer of kopi luwak. Sumatran civet coffee beans are mostly an early arabica variety cultivated in the Indonesian archipelago since the seventeenth century. The major Sumatran kopi luwak production area is in Lampung, Bengkulu and Aceh especially the Gayo region, Takengon. Tagalog cafe alamid (or alamid cafe) comes from civets fed on a mixture of coffee beans and is sold in the Batangas region along with gift shops near airports in the Philippines.

Research
Several studies have examined the process in which the animal's stomach acids and enzymes digest the beans' covering and ferment the beans. Research by food scientist Massimo Marcone at the University of Guelph in Ontario, Canada showed that the civet's endogenous digestive secretions seep into the beans. These secretions carry proteolytic enzymes which break down the beans' proteins, yielding shorter peptides and more free amino acids. Since the flavor of coffee owes much to its proteins, there is a hypothesis that this shift in the numbers and kinds of proteins in beans after being swallowed by civets brings forth their unique flavor. The proteins are also involved in non-enzymatic Maillard browning reactions brought about later by roasting. Moreover, while inside a civet the beans begin to germinate by malting which also lowers their bitterness.

At the outset of his research Marcone doubted the safety of kopi luwak. However, he found that after the thorough washing, levels of harmful organisms were insignificant. Roasting at high temperature has been cited as making the beans safer after washing.

Civet coffee imitation
Research into the palm civet's digestive processes and the transformation of the beans' proteins has led to the discovery of innovative ways to imitate the taste of kopi luwak without the civet's involvement. It is a response to the decrease in civet population, caused by hunting for meat. Kopi luwak production involves a great deal of labor, whether farmed or wild-gathered. The small production quantity and the labor involved in production contribute to the coffee's high cost. The high price of kopi luwak is another factor that drives the search for a way to produce kopi luwak in large quantities, lowering the cost.

The University of Florida has developed a way to recreate how nature produces Kopi Luwak without the involvement of any animals. This technology has been licensed to a Gainesville Florida firm, Coffee Primero, which now produces and distributes that product at a price competitive with ordinary quality coffees.

The Trung Nguyên Coffee Company in Vietnam, through its work in isolating the civet's digestive enzymes, has patented its own synthetic enzyme soak, which is used in its Legendee brand simulated kopi luwak coffee.