Orange peel can be used to extract limonene. Limonene can be oxidized and combined with carbon dioxide to produce antimicrobial bioplastic, e.g. for packaging and medical implants. Pharmaceuticals (e.g. essential oil from orange peel, glycoalkaloids, antioxidants) can be extracted from juice pressings. Can be used as substrates for microbial enzyme production, feed and also food ingredients (zest and peel) (Awarenet EC project)