One of the mysteries of the English language finally explained.
A bitter yellowish powder found on glandular hairs beneath the scales of the flowers of the female hop plant.
- ‘It is found at the base of the hop cone petals inside tiny golden spheres called lupulin glands.’
- ‘From ‘lupulin’ also comes hop oil used to give flavor to the beer.’
- ‘Essential oils and lupulin resins are concentrated in the lupulin glands, found at the base of the leaves, close to the central stem.’
- ‘Chemical analysis of lupulin reveals bitter substances, including the alkaloids codeine and morphine, which are responsible for the bitter flavor of hops.’
- ‘They contain all the vegetative and lupulin material of raw leaf hops and can be used as a full replacement for leaf hops in the brewing process.’
- ‘Since the medicinal virtues of hops reside in the lupulin it will be readily understood that the hops from which the glands have been removed is of little or no medicinal value.’
- ‘It is very important that the hop doesn't lose lupulin otherwise the hop is no longer bitter.’
- ‘The Quality of Hops depends largely on the amount of lupulin they contain.’
- ‘When given to nursing mothers, lupulin increases the flow of milk - recent research has shown that it contains a related hormone that could account for this effect.’
Early 19th century: from the modern Latin use as an epithet of Latin lupulus (as in Humulus lupulus), a plant mentioned by Pliny and perhaps denoting ‘wild hops’, + -in.
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