1 Obligate aerobes: They have absolute requirement for oxygen in order to grow. 2  Psuedomonas aeruginosa, Mycobacterium tuberculosis. 3  Anaerobes: Usually can not grow in the presence of oxygen. 4  Obligate anaerobes: These bacteria grow only under condition of high reducing intensity and for which oxygen is toxic.
Wild yam is a plant. It contains a chemical, diosgenin, which can be made in the laboratory into various steroids, such as estrogen and dehydroepiandrosterone (DHEA). The root and the bulb of the plant are used as a source of diosgenin, which is prepared as an âextract,â a liquid that contains concentrated diosgenin.
Burdock root oil extract is popular in Europe as a scalp treatment applied to improve hair strength, shine and body, help reverse scalp conditions, combat hair loss.uick Overview. Burdock has been a favorite medicinal herb for centuries and was taken for many ailments. Modern studies indicate that Burdock root oil extract is rich in phytosterols and essential fatty acid, nutrients required for healthy scalp and natural hair growth.