Cleaned and bleached biofilms, obtained with the help of symbiotic tea fungus (A) and laboratory modified tea fungus (B) on various breeding grounds: 1 — tea with sugar, 2 — soybean molasses, sugar and tea, 3 – soybean molasses and sugar, 4 – soybean molasses and tea, 5 — soybean molasses. Source: Olga Krieger.