Essential oil which is then collected in the receiving vessel. Most oils are distilled in a single process. One exception is "ylang-ylang" ("Cananga odorata") which is purifed through a fractional distillation. The recondensed water is referred to as a hydrosol, hydrolat, herbal distillate, or plant water essence, which may be sold as another fragrant product. Hydrosols include rose water, lavender water, lemon balm, clary sage, and orange blossom water. The use of herbal distillates in cosmetics is increasing. Most citrus peel oils are expressed mechanically or cold-pressed (similar to olive oil extraction). Due to the relatively large quantities of oil in citrus
Petals of Blood called 'Ballad of a Barmaid', it is unclear why Ngugi changed the title before release. The phrase "petals of blood" appears several times throughout the novel, with varying associations and meanings. Initially, "petals of blood" is first used by a pupil in Munira's class to describe a flower. Munira quickly chastises the boy, saying that 'there is no colour called blood'. Later, the phrase is used to describe flames, as well relating to virginity during one of Munira's sexual fantasies. One primary underlining theme in "Petals of Blood" is the failure of the ruling Kenyan elite to adequately meet the