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,
Malayan civet the Malay civet includes Indonesia, Malaysia, Brunei, the Philippines and Singapore. In Malaysia, it occurs in Borneo, Banggi Island, Langkawi Island, Penang Island and in Peninsular Malaysia. It is also known from Sumatra. It was introduced to Sulawesi and the Maluku Islands. Museum records indicate that the Malay civet also occurred on the Indonesian islands of Java, Bawal and Telok Pai, and on the Philippine island Leyte. In 2012, an individual was photographed in Singapore. The Malay civet population in the Philippines may have originated in Borneo and colonized Palawan island naturally. It possibly later dispersed to the rest of