In general, tomatoes take around 60 to 90 days to grow and then ripen. In a hydroponic system, because you are providing the plant with the absolute best growing conditions, I would expect this to be sooner, and you should be enjoying your tomatoes within 60 days at the very most.
Emollients are substances that moisten and soften your skin. Topical (for the skin) emollients are used to treat or prevent dry skin. Topical emollients are sometimes contained in products that also treat acne, chapped lips, diaper rash, cold sores, or other minor skin irritation.
Emulsifiers are the chemicals that make emulsions happen. Nature uses proteins and phospholipids, and many emulsifiers used in modern food production are based on these natural substances. An emulsifier is a molecule in which one end likes to be in an oily environment and the other in a water environment. To make an oil-in-water emulsion, such as mayonnaise, droplets of oil molecules are surrounded by the oil-loving end of the emulsifier molecules.