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Hormone-like substances (also exohormones, telergons) that, in the form of fragrances or attractants, in contrast to hormones, do not work in the body, but are released to the outside. The name derives from the Greek words ferein = transferred and hormãn = to drive or stimulate. In humans, they play an important role in the reproductive drive, such as androstenone (sweaty smell of the male armpit), copulins (vaginal secretions) and trimethylamine (fish brine). Some of these sexually animating "fragrance attractants" only work for women, others only for men.

In insects, pheromones trigger certain actions or social functions. For example, queen bees release certain pheromones to the working bees, which prevent them from breeding new queens. If the queen fails and the pheromone delivery fails, the rearing of a successor or new queen is automatically started. In the vineyard, synthetically produced sexual pheromones are used in the so-called disrupter (Mating disorder, sexual confusion) for the environmentally friendly control of animal pests within the scope of the Biological crop protection used. Among other things, these are the dreaded in viticulture grape (or their caterpillars) that are prevented from mating.

Crossed grape wrapper / pheromoin dispenser

There are also many pheromones in wine, which are characterized by truffle aromas in old ones Barolo wines, more mature than honey scent Beerenauslesen, as vanilla and Oak scents in Barrique matured wines when Tobacco- and leather perfume in ripened red Bordeaux, as peach scents in young wines Riesling and Sauvignon Blanc, as buttery Flavors in Chardonnays with biological acid degradation ( malolactic fermentation ), as Cassis and blackberries in Syrah wines, as green apple flavors in Fino Sherry and as Hefiges in large vintage champagnes ( Millésime ) express. You can aphrodisiac Have an effect. See also under flavorings,

Left picture: © Todd M. Gilligan - USDA
Right picture: Roger Kreja, Stuttgart - Own work, CC BY-SA 3.0 , Link

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