Frankincense

The English word frankincense derives from the Old French expression franc encens, meaning "high-quality incense". The word franc in Old French meant "noble" or "pure".[3]

A popular folk etymology suggests a connection with the Franks (and often in particular Frankish Crusaders), who reintroduced the spice to Western Europe from their trade with the Byzantine Empire during the Middle Ages, but the word itself comes from the expression.[3][4]

In Koine Greek (the language of the New Testament), Arabic, Phoenician and Hebrew, the name of frankincense is cognate with the name of Lebanon; this is postulated to be because they both derive from the word for "white" and that the spice route went via Mount Lebanon.[5]

Flowers and branches of the Boswellia sacra tree, the species from which people produce most frankincense.

The trees start producing resin at about eight to 10 years old.[6] Tapping is done two to three times a year with the final taps producing the best tears due to their higher aromatic terpene, sesquiterpene and diterpene content. Generally speaking, the more opaque resins are the best quality. Fine resin is produced in Somaliland, from which the Roman Catholic Church purchases most of its stock.[7]

Recent studies indicate that frankincense tree populations are declining, partly due to over-exploitation.[8][9] Heavily tapped trees produce seeds that germinate at only 16% while seeds of trees that had not been tapped germinate at more than 80%. In addition, burning, grazing, and attacks by the longhorn beetle have reduced the tree population.[10] Conversion (clearing) of frankincense woodlands to agriculture is also a major threat.[11]

Structure of β-boswellic acid, one of the main active components of frankincense

These are some of the chemical compounds present in frankincense:

• acid resin (6%), soluble in alcohol and having the formula C₂₀H₃₂O₄[12]
• gum (similar to gum arabic) 30–36%[12]
• 3-acetyl-beta-boswellic acid (Boswellia sacra)[13]
• alpha-boswellic acid (Boswellia sacra)[13]
• incensole acetate, C₂₁H₃₄O₃[14]
• phellandrene[12]

See the following references for a comprehensive overview of the chemical compounds in different frankincense species.[15][16]

Indirect burning of frankincense on hot coal

Frankincense olibanum resin

Frankincense has been traded on the Horn of Africa and The Arabian Peninsula for more than 6,000 years.[17] [18]

Frankincense was reintroduced to Western Europe by Frankish Crusaders, and other Western Europeans on their journeys to the Eastern Roman Empire where it was commonly used in church services. Although named Frankincense, the name refers to the quality of incense brought to Western Europe, not to the Franks themselves.[1]

The Greek historian Herodotus was familiar with frankincense and knew it was harvested from trees in the Horn of Africa. He reported that the gum was dangerous to harvest because of venomous snakes that lived in the trees. He goes on to describe the method used by the Somalis to get around this problem, that being the burning of the gum of the styrax tree whose smoke would drive the snakes away.[19]

Southern Arabia was an exporter of frankincense in antiquity, with some of it being traded as far as China. The 13th-century Chinese writer and customs inspector Zhao Rugua wrote on the origin of frankincense, and of its being traded to China:

"Ruxiang or xunluxiang (Chinese: 乳香 rǔ xiāng/ 薰陸香 xūn lù xiāng) comes from the three Dashi states [Chinese: 大食 dàshí - the term used in the Song Dynasty to address Arab Muslims] of Murbat (Maloba), Shihr (Shihe), and Dhofar (Nufa), from the depths of the remotest mountains.[20] The tree which yields this drug may generally be compared to the pine tree. Its trunk is notched with a hatchet, upon which the resin flows out, and, when hardened, turns into incense, which is gathered and made into lumps. It is transported on elephants to the Dashi (Persian Gulf Muslim nations on the coast), who then load it upon their ships to exchange it for other commodities in Sanfoqi. This is the reason why it is commonly collected at and known as a product of Sanfoqi."[21]

Thousands of tons of frankincense are traded every year to be used in religious ceremonies as incense in thuribles and by makers of perfumes, natural medicines, and essential oils. It can be inhaled or applied to the skin for its supposed health benefits. Most frankincense comes from Somalia, and India, but also in Oman, Yemen, and western Africa.[2]

In Somalia, frankincense is harvested in the Bari and Sanaag regions: mountains lying at the northwest of Erigavo; El Afweyn District; Cal Madow mountain range, a westerly escarpment that runs parallel to the coast; Cal Miskeed, including Hantaara and Habeeno plateau and a middle segment of the frankincense-growing escarpment; Karkaar mountains or eastern escarpment, which lies at the eastern fringe of the frankinscence escarpment.[22][9] The Habr Je'lo subclan of the Isaaq in particular were known to harvest and export frankincense from Sanaag.[23]

In Dhofar, Oman, frankincense species grow north of Salalah and were traded in the ancient coastal city of Sumhuram, now Khor Rori.[24]

In 1998, the International Union for Conservation of Nature (IUCN) warned that one of the primary frankincense species, Boswellia sacra, is "near threatened". Frankincense trees are not covered by the Convention on International Trade in Endangered Species of Wild Fauna and Flora, but experts argue that Boswellia species meet the criteria for protection. In a 2006 study, an ecologist at Wageningen University & Research claimed that, by the late-1990s, Boswellia papyrifera trees in Eritrea were becoming hard to find. In 2019, a new paper predicted a 50% reduction in Boswellia papyrifera within the next two decades. This species, found mainly in Ethiopia, Eritrea, and Sudan, accounts for about two-thirds of global frankincense production. The paper warns that all Boswellia species are threatened by habitat loss and overexploitation. Most Boswellia grow in harsh, arid regions beset by poverty and conflict. Harvesting and selling the tree's resin is one of the only sources of income for the inhabitants, resulting in overtapping.[2]

In Chinese medicine, frankincense (Chinese: 乳香 rǔ xiāng) along with myrrh (Chinese: 沒藥 mò yào) have anti-bacterial properties as well as blood-moving uses. It can be used topically or orally, also used in surgical and internal medicine of traditional Chinese medicine. It is used to relieve pain, remove blood stasis, promote blood circulation and treat deafness, stroke, locked jaw, and abnormalities' in women's menstruation.

The Egyptians cleansed body cavities in the mummification process with frankincense and natron. In Persian medicine, it is used for diabetes, gastritis and stomach ulcer.[25]

The incense offering occupied a prominent position in the sacrificial legislation of the ancient Hebrews.[26] The Book of Exodus (30:34-38) prescribes frankincense, blended with equal amounts of three aromatic spices, to be ground and burnt in the sacred altar before the Ark of the Covenant in the wilderness Tabernacle, where it was meant to be a holy offering—not to be enjoyed for its fragrance. Scholars have identified frankincense as what the Book of Jeremiah (6:20) relates was imported from Sheba during the 6th century BC Babylonian captivity.[27]

Frankincense is mentioned in the New Testament as one of the three gifts (with gold and myrrh) that the magi "from the East" presented to the Christ Child (Matthew 2:11).

Generally the oil is also used in Abrahamic religions to cleanse the house or building of bad or evil energy - including used in exorcisms and to bless one's being (like the bakhoor commonly found in Persian Gulf cultures by spreading the fumes towards the body).

• Woolley, CL; et al. (Oct 2012). "Chemical differentiation of Boswellia sacra and Boswellia carterii essential oils by gas chromatography and chiral gas chromatography-mass spectrometry". Journal of Chromatography A. 1261: 158–63. doi:10.1016/j.chroma.2012.06.073. PMID 22835693.

Bibliography

• Müller, Walter W.: Weihrauch : ein arabisches Produkt und seine Bedeutung in der Antike, Realencyclopaedie / Pauly-Wissowa : Supp.; 15, 1978, 700-777.
• Groom, Nigel (1981). Frankincense & Myrrh: A Study of the Arabian Incense Trade. ISBN 0-86685-593-9.
• Maloney, George A, (1997). Gold, Frankincense, and Myrrh: An Introduction to Eastern Christian Spirituality. ISBN 0-8245-1616-8.

Media related to Frankincense at Wikimedia Commons

• Quotations related to Frankincense at Wikiquote
• "Frankincense" . Encyclopædia Britannica. 11 (11th ed.). 1911.