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,
Beans, Beans, the Musical Fruit Beans, Beans, the Musical Fruit "Beans, Beans, The Magical Fruit" is a playground saying and children's song about the capacity for beans to contribute to flatulence. The song is also variously known as "Beans, Beans, the Musical Fruit", "Beans, Beans, the Miracle Fruit", "Beans, Beans, the Mystical Fruit", "Beans, Beans, the Tropical Fruit", "Beans, Beans, the Wonderful Fruit", and "Beans, Beans, they make you fart". One variation of the song (sometimes called the second verse) is titled "Beans, Beans, They're Good for Your Heart." The basis of the song (and bean/fart humor in general) is the high amount of oligosaccharides