FAMILY: Piperaceae
SYNONYMS: Piper, pepper.
GENERAL DESCRIPTION: A perennial woody vine up to 5 metres high with heart-shaped leaves and small white flowers. The berries turn from red to black as they mature – black pepper is the dried fully grown unripe fruit.
DISTRIBUTION: Native to south west India; cultivated extensively in tropical countries. Major producers are India, Indonesia, Malaysia, China and Madagascar. It is also distilled in Europe and America from the imported dried fruits.
OTHER SPECIES: The so-called white pepper is the dried ripe fruit with the outer pericarp removed. Not to be confused with cayenne pepper or paprika from the capsicum species, which are used to make an oleoresin.
HERBAL/FOLK TRADITION: Both black and white pepper have been used in the East for over 4000 years for medicinal and culinary purposes. In Chinese medicine, white pepper is used to treat malaria, cholera, dysentery, diarrhoea, stomach ache and other digestive problems. In Greece it is used for intermittent fever and to fortify the stomach. ‘The mendicant monks of India who cover daily considerable distances on foot, swallow 7–9 grains of pepper a day. This gives them remarkable endurance.’.
ACTIONS: Analgesic, antimicrobial, antiseptic, antispasmodic, antitoxic, aperitif, aphrodisiac, bactericidal, carminative, diaphoretic, digestive, diuretic, febrifuge, laxative, rubefacient, stimulant (nervous, circulatory, digestive), stomachic, tonic.
EXTRACTION: Essential oil by steam distillation from the black peppercorns, dried and crushed. (‘Light’ and ‘heavy’ oils are produced by the extraction of the low or high boiling fractions respectively.) An oleoresin is also produced by solvent extraction, mainly for flavour use.
CHARACTERISTICS: A water-white to pale olive mobile liquid with a fresh, dry-woody, warm, spicy scent. It blends well with frankincense, sandalwood, lavender, rosemary, marjoram, spices and florals (in minute quantities).
PRINCIPAL CONSTITUENTS: Mainly monoterpenes (70–80 per cent): thujene, pinene, camphene, sabinene, carene, myrcene, limonene, phellandrene, and sesquiterpenes (20–30 per cent) and oxygenated compounds.
SAFETY DATA: Non-toxic, non-sensitizing, irritant in high concentration due to rubefacient properties. Use in moderation only.
AROMATHERAPY/HOME: USE
Skin care: Chilblains.
Circulation muscles and joints: Anaemia, arthritis, muscular aches and pains, neuralgia, poor circulation, poor muscle tone (muscular atonia), rheumatic pain, sprains, stiffness.
Respiratory system: Catarrh, chills.
Digestive system: Colic, constipation, diarrhoea, flatulence, heartburn, loss of appetite, nausea.
Immune system: Colds, ’flu, infections and viruses.
OTHER USES: Used in certain tonic and rubefacient preparations. Used for unusual effects in perfumery work; for example, with rose or carnation in oriental or floral fragrances. The oil and oleoresin are used extensively in the food industry, as well as in alcoholic drinks.