Asian palm civet digestive juices enter into the beans and modify the micro-structural properties of these beans. Proteolytic enzymes cause substantial breakdown of storage proteins. Kopi Luwak is traditionally made from the faeces of wild civets, however, due to it becoming a trendy drink, civets are being increasingly captured from the wild and fed coffee beans to mass-produce this blend. Many of these civets are housed in battery cage systems which have been criticised on animal welfare grounds. The impact of the demand for this fashionable coffee on wild palm civet populations is yet unknown but may constitute a significant threat. In Indonesia,
Civet more common usage in English, the name also covers "Chrotogale, Cynogale, Diplogale, Hemigalus, Arctogalidia, Macrogalidia, Paguma," and "Paradoxurus" civets. The common name is used for a variety of carnivorous mammalian species, mostly of the family Viverridae. The African palm civet ("Nandinia binotata") is genetically distinct and belongs in its own monotypic family, Nandiniidae. Civets are also called "toddycats" in English, "Luwak" in Bahasa Indonesian and "musang" in Malay. The latter may lead to some confusion among Malay speakers and non-speakers alike as the indigenous word "musang" has been mistakenly appropriated to foxes by certain printed media over the years instead