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,
African civet its dorsal crest to make itself look larger and thus more formidable and dangerous to attack. This behavior is a predatory defense. The perineal gland is what this civet has historically been most often harvested for. This gland secretes a white or yellow waxy substance called civet, which is used by civets for marking territory and by humans as a perfume base. Perineal and anal glands are found in both male and female African civets, however, the glands are bigger in males, which can produce a stronger secretion. The perineal glands are located between the scrotum and the prepuce in