Sap activity, which transforms excess ingested sugar into long-chain oligosaccharides." A much larger set of animals do however consume phloem sap by proxy, either "through feeding on the honeydew of phloem-feeding hemipterans. Honeydew is physiologically less extreme than phloem sap, with a higher essential:non-essential amino acid ratio and lower osmotic pressure," or by feeding on the biomass of insects that have grown on more direct ingestion of phloem sap. Maple syrup is made from reduced sugar maple xylem sap. The sap often is harvested from the Sugar Maple, "Acer saccharum". In some countries (e.g., Lithuania, Latvia, Estonia, Finland, Belarus, Russia) harvesting
Phoenix (plant) thin layer of fruit pulp. The central soft part of the stem of "P. rupicola, P. acaulis," and "P. humilis" is a rich source of starch. Palms are felled to extract this central ‘pith’ which is dried, powdered, stored and used for preparation of bread by Indian natives. The "P. canariensis" sap is cooked to a sweet, thick syrup. "P. sylvestris" Roxb. is widely used in India as a source of sugar. The sugary sap from some African palms yields country liquor on fermentation (palm wine). While "P. dactylifera" is grown for its edible dates, the Canary Island date palm