On the other side, due to the large amount of nutrients required to this media, some researchers have focused their work on the use of cost-effective carbon and nitrogen sources from industrial wastes or by-products [99].Some of them are the use of glycerol from biodiesel or grape bagasse [100], konjac powder hydrolyzate [99], cotton cloth hydrolysate [101], orange juice [102], waste from beer fermentation broth [103], and pineapple or watermelon peels [104]. Most of them not only reduce considerably the cost of nutrients, but also increase the BC yield, making the process more economically viable.Table 5.3 shows some of the used media to culture bacteria and produce BC.