General preparation While Volatile oils are extracted by steam distillation, less volatile oils are often separated by solvent extraction. The herb to extract ratio is typically 5:1 for normal extracts, or 100:1 for a herb with 1% essential oil. Preparation of herbal remedies is generally by crushing the plant partsContinue Reading

At the heart of garden is the endangered species island which acts as a rescue center for endangered species.Key among others Encephalartos whitelockii which was previously classified as Vulnerable based on its small extent of occurrence and area of occupancy and occurrence at a single location. At the time, thereContinue Reading