Pear

Pear

Summary

The pear is a distant member of the apple family. Pears are a great source of dietary fiber, vitamin C, copper, and vitamin K. Most of the vitamins are contained on the skin of the fruit. Pears can also increase urine acidity, which in some cases can stop the formation of kidney stones. Pears also promote heart and colon health because of their high fiber content.

Description

Medicinal Parts

The medicinal part is the fruit.

Flower and Fruit

The fleshy fruit is typically smaller near the stem and larger at the apical end, with a relatively tough skin. The core has a number of carpels, which are large and edible. The seeds are pointed at one end and rounded at the other. When ripe, they are dark brown to black, glabrous and about 0.5 cm long.

Leaves, Stem, and Root

The pear is a tree, up to 20 m tall, with a long, clavate crown. The bark is dark brown to black and broken into square plates. The glabrous or slightly pubescent branches are glossy brown or thorny. The leaves are 2 to 8 cm long, ovate-round, acuminate, tough, and serrate. The ribs are protruding.

Habitat

The pear tree grows mainly in the temperate regions of the Northern Hemisphere.

Production

Pears are the fruit of Pyrus communis.

Actions & Pharmacology

Compounds

Fruit acids: malic acid (0.06-0.1%), additionally citric acid, quinic acid

Cyanogenic glycosides: amygdalin (only in the seeds)

Aromatic substances: including (E,Z)-2,4-deca-dien-(E)-2-octen and -(Z)-4-decenacylethylester, acetic acid hexylester

Caffeic acid derivatives: in particular 5-caffeoyl quinic acid

Pectin

Effects

In folk remedies, Pear is said to be astringent and cooling.

Indications & Usage

Unproven Uses

Pear is used in the treatment of mild digestive disorders, while its syrup is used as a diuretic and laxative.

Precautions & Adverse Reactions

No health hazards or side effects are known in conjunction with the proper administration of designated therapeutic dosages.

Dosage

Mode of Administration

Fresh fruit (as food)

Literature

Belitz HD, Grosch W, Lehrbuch der Lebensmittelchemie, 4. Aufl., Springer Verlag Berlin, Heidelberg, New York 1992.Kern W, List PH, Hörhammer L (Hrsg.), Hagers Handbuch der Pharmazeutischen Praxis, 4. Aufl., Bde 1-8, Springer Verlag Berlin, Heidelberg, New York, 1969.Stahly EA, Buchanan EA. High-Performance Liquid Chromatographic Procedure for Separation and Quantification of Zeatin and Zeatin Riboside from Pears, Peaches and Apples. J Chromatogr. 235; 453-459. 1982

This information is an educational aid only. It is not intended as medical advice for individual conditions or treatments.
Talk to your doctor, nurse, or pharmacist before following any medical regimen to see if it is safe and effective for you. Please read this important disclaimer about the information within our guide.

Multi-Vitamins

Advertisement