Camelina sativa

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Camelina
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Brassicales
Family: Brassicaceae
Genus: Camelina
Species: C. sativa
Binomial name
Camelina sativa
L. Crantz

Camelina sativa is a flowering plant in the family Brassicaceae and is usually known in English as camelina, gold-of-pleasure, or false flax, also occasionally wild flax, linseed dodder, German sesame, and Siberian oilseed. It is native to Europe and to Central Asian areas. This plant is cultivated as oilseed crop mainly in Europe and in North America.

History

C. sativa has been traditionally cultivated as an oilseed crop to produce vegetable oil and animal feed. Ample archeological evidence shows it has been grown in Europe for at least 3,000 years. The earliest findsites include the Neolithic levels at Auvernier, Switzerland (dated to the second millennium BC), the Chalcolithic level at Pefkakia in Greece (dated to the third millennium BC), and Sucidava-Celei, Romania (circa 2200 BC).[1] During the Bronze age and Iron age, it was an important agricultural crop in northern Greece beyond the current range of the olive.[2][3] It apparently continued to be grown at the time of the Roman Empire, although its Greek and Latin names are not known.[4] As early as 600 BC, it was being sown as a monoculture around the Rhine River Valley, and was thought to have spread mainly by coexisting as a weed with flax monocultures.

Until the 1940s, camelina was an important oil crop in eastern and central Europe, and currently has continued to be cultivated in a few parts of Europe for its seed oil. Camelina oil was used in oil lamps (until the modern harnessing of natural gas, propane, and electricity) and as an edible false flax oil.[5] It was possibly brought to North America unintentionally as a weed with flaxseed, and has had limited commercial importance until modern times. Currently, the breeding potential is unexplored compared to other oilseeds commercially grown around the world.[6]

Distribution

Today, camelina is found, wild or cultivated, in almost all regions of Europe, Asia, and North America, but also in South America, Australia, and New Zealand.[7] Camelina seems to be particularly adapted to cold semiarid climate zone (steppes and prairies).[8]

Plant characteristics

As a summer or winter annual plant, camelina grows to heights of 30 to 120 cm, with branching stems which become woody at maturity. The leaves are alternate on the stem, lanceolate with a length from 2 to 8 cm and a width of 2 to 10 mm. Leaves and stems may be partially hairy. Its abundant, four-petaled flowers are pale yellow in colour.

Seeds, which mature in seed pods, have a characteristic orange colour and a length of 1.5 to 2 cm. The 1,000-seed weight ranges from 0.8 to 2.0 g.[5]

Use

Human food

The crop is now being researched due to its exceptionally high levels (up to 45%) of omega-3 fatty acids, which is uncommon in vegetable sources. Seeds contain 38 to 43% oil and 27 to 32% protein.[9] Over 50% of the fatty acids in cold-pressed camelina oil are polyunsaturated. The oil is also very rich in natural antioxidants, such as tocopherols, making this highly stable oil very resistant to oxidation and rancidity. It has 1 - 3% erucic acid. The vitamin E content of camelina oil is approximately 110 mg/100 g. It is well suited for use as a cooking oil. It has an almond-like flavor and aroma.

Because of its apparent health benefits and its technical stability, camelina oil is being added to the growing list of foods considered as functional foods.

Typical fatty acid content of camelina, canola, linseed and sunflower oils in %.[5]
16:0 18:0 18:1 18:2 (omega-6) 18:3 (omega-3) 20:0 20:1 22:1
Camelina 7.8 3.0 16.8 23.0 31.2 0 12.0 2.8
Canola 6.2 0 61.3 21.6 6.6 0 0 0
Linseed 5.3 3.1 16.2 14.7 59.6 0 0 0.9
Sunflower 6.0 4.0 16.5 72.4 0 0 0 0

Biodiesel and jet fuel

The US state of Montana has recently been growing more camelina for its potential as a biofuel and biolubricant.[10] Plant scientists at the University of Idaho, Washington State University, and other institutions also are studying this emerging biodiesel.[11]

Studies have shown camelina-based jet fuel reduces net carbon emissions by about 80%. The United States Navy chose it as the feedstock for their first test of aviation biofuel,[12] and successfully operated a static F414 engine (used in the F/A-18) in October 2009 at Naval Air Station Patuxent River, Maryland.[13] The US Air Force also began testing the fuel in its aircraft in March 2010.[14] In March, 2011, the US Air Force successfully tested a 50/50 mix of jet propellent 8 (JP-8) and camelina-derived biofuel in an F-22 Raptor, achieving a speed of Mach 1.5.[15] On September 4, 2011, the Navy's Blue Angels flight demonstration squadron would be using a 50/50 blend of camelina biofuel and jet fuel at the Naval Air Station Patuxent River Air Expo. This event marked the first time an entire military aviation unit has flown on a biofuel mix.[16] The Navy plans to deploy a "Great Green Fleet" by 2016, a carrier battle group powered entirely by nonfossil fuels.[17] The Air Force is also planning on using 50% biofuels in its aircraft by 2016. As such, the Air Force announced that by 2016, 50% of the fuel it consumes will be from biofuels, as well.[18]

KLM, the Royal Dutch Airline, was the first airline to operate a passenger-carrying flight using biofuel. On 23 November 2009, a Boeing 747 flew, carrying a limited number of passengers, with one of its four engines running on a 50/50 mix of biofuel and kerosene.[19][20]

In June, 2011, a Gulfstream G450 became the first business jet to cross the Atlantic ocean using a blend of 50/50 biofuel developed by Honeywell derived from camelina and petroleum-based jet fuel.[21] The Dutch biofarming company Waterland International and a Japanese federation of farmers made an agreement in March 2012 to plant and grow camelina on 2000 to 3000 ha in Fukushima Prefecture. The seeds were to be used to produce biofuel, that could be used to produce electricity. According to director William Nolten, the region had a big potential for the production of clean energy. Some 800.000 ha in the region could not be used to produce food anymore, and after the nuclear disaster because of fears for contamination, the Japanese people refused to buy food produced in the region, anyway. Experiments would be done to find out whether camelina was capable of extracting radioactive caesium from the soil. An experiment with sunflowers had no success.[22]

Animal feed

Camelina has been approved as a cattle feed supplement in the US,[23] as well as an ingredient (up to 10% of the ration) in broiler chicken feed[24] and laying hen feed.[25] Camelina meal, the byproduct of camelina when the oil has been extracted, has a significant crude protein content. "Feeding camelina meal significantly increased (p < 0.01) omega-3 [fatty acid] concentration in both breast and thigh meat [of turkeys] compared to control group." Medical research indicates a diet abundant in omega-3 fatty acids is beneficial to human health.[26]

Use in Canada

Current acres in Canada are approximately 50,000. The Camelina Association of Canada projects Canada could have 1 to 3 million acres planted in it in the future. Several factors challenge the spread of camelina cultivation in Canada: it does not have government crop classification, and camelina meal is not approved as livestock feed. In early 2010, Health Canada approved camelina oil as a food in Canada.[27]

Genetics

The first full genome sequence for Camelina was released on August 1, 2013, by a Canadian research team. The genome sequence and its annotation are available in a genome viewer format and enabled for sequence searching and alignment.[28]

In 2013 Rothamsted Research in the UK reported they had developed a genetically modified form of Camelina sativa that produced Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA).[29] EPA and DHA are omega-3 fatty acids which are beneficial for cardiovascular health. The main source of these omega-3 fatty acids is fish but supplies are limited and unsustainable.[30]

Agronomics

Cultivation

Camelina is a short-season crop (85–100 days) and grows well in the temperate climate zone in light or medium soils. Camelina is generally seeded in spring from March to May, but can also be seeded in fall in mild climates.[31]

A seeding rate of 3–14 kg/ha is recommended, with an row interval of 12 to 20 cm.[32] Seeding depth should not exceed 1 cm. With high seeding rates, these independently noncompetitive seedlings become competitive against weeds because of their density. The seedlings are early emerging and can withstand mild frosts in the spring. Minimal seedbed preparation is needed to establish camelina.[5]

Usually, camelina does not need any field interventions. However, perennial weeds may be difficult to control. Some specialized oilseed herbicides can be used on it. Also, camelina is highly resistant to black leg and Alternaria brassicae, but it can be susceptible to sclerotinia stem rot. No insect has be found to cause economic damage to camelina.[5] Camelina needs little water or nitrogen to flourish; it can be grown on marginal agricultural lands. Fertilization requirements depend on soils, but are generally low. It may be used as a rotation crop for wheat and other cereals, to increase the health of the soil.[33] Camelina can also show some allelopathic traits and can be grown in mixed crop with cereals or legumes.[34]

Camelina is harvested and seeded with conventional farming equipment, which makes adding it to a crop rotation relatively easy for farmers who do not already grow it.[35][36]

Seed yields vary depending on conditions and can reach 2700 kg/ha (2400 lb/acre).[5]

Cultivars

North America: 'Blaine Creek', 'Suneson', 'Platte', 'Cheyenne', 'SO-40', 'SO-50', 'SO-60'

Europe: 'Epona', 'Celine', 'Calena', 'Lindo', 'Madonna', 'Konto','D.Tagliafierro'

Invasive species

C. sativa subsp. linicola is considered a weed in flax fields. In fact, attempts to separate its seed from flax seeds with a winnowing machine over the years have selected for seeds which are similar in size to flax seeds, an example of Vavilovian mimicry.

Gallery

  • US Navy 091015-N-7676W-150 John Bigus, left, a fuels engineer assigned to Naval Air Warfare Center-Aircraft Division in Patuxent River, Md.jpg
  • Brassicaceae spp Sturm30.jpg

See also

References

  1. ↑ Daniel Zohary and Maria Hopf, Domestication of plants in the Old World, third edition (Oxford: University Press, 2000), pp. 138f
  2. ↑ Megaloudi, Fragkiska (2006), Plants and Diet in Greece from Neolithic to Classic Periods: the archaeobotanical remains, Oxford: Archaeopress, ISBN 1-84171-949-8
  3. ↑ Jones, G.; Valamoti, S.M. (2005), "Lallemantia, an imported or introduced oil plant in Bronze Age northern Greece", Vegetation History and Archaeobotany 14 (4): 571–577, doi:10.1007/s00334-005-0004-z
  4. ↑ Dalby, Andrew (2003), Food in the ancient world from A to Z, London, New York: Routledge, ISBN 0-415-23259-7
  5. ↑ 5.0 5.1 5.2 5.3 5.4 5.5 Ehrensing, D. T. and Guy, S. O. 2008. Camelina. EM 8953-E. Oregon State University Extension Service, Corvallis, OR, USA. [Online] Available: http://extension.oregonstate.edu/catalog/pdf/em/em8953-e.pdf [28 Sept. 2009].
  6. ↑ http://www.hort.purdue.edu/newcrop/proceedings1993/v2-314.html
  7. ↑ http://www.inspection.gc.ca/plants/plants-with-novel-traits/applicants/directive-94-08/biology-documents/camelina-sativa-l-/eng/1330971423348/1330971509470
  8. ↑ Francis, A. and Warwick, S. I. 2009. The biology of Canadian weeds. 142. Camelina alyssum (Mill.) Thell.; C. microcarpa Andrz. Ex DC.; C. sativa (L.) Crantz. Can. J. Plant Sci. 89: 791–810.
  9. ↑ Gugel, R.K. and Falk, K.C. 2006. Agronomic and seed quality evaluation of camelina sativa in western Canada. Can. J. Pl. Sci. 86: 1047-1058
  10. ↑ http://www.montana.edu/biobased
  11. ↑ http://www.biodiesel.org/news/bulletin/2007/120307.htm
  12. ↑ Matthew McDermott "40,000 Gallons of Camelina Chosen for US Navy's Aviation Biofuel Test Program" Treehugger
  13. ↑ "Inside the Ring", Bill Gertz, Washington Times, 24 December 2009, page B1.
  14. ↑ "Air Force officials take step toward cleaner fuel, energy independence"
  15. ↑ http://www.gizmag.com/f-22-raptor-biofuel-flight/18218/
  16. ↑ Johnson, Andrew (September 2, 2011). "Blue Angels Use Biofuel at Patuxent Air Show.". United States Department of Defense (press release). Retrieved September 3, 2011.
  17. ↑ Lendon, Brad (September 3, 2011). "Blue Angels to fly on biofuels.". CNN. Retrieved September 3, 2011.
  18. ↑ Bowen, Holley (July 29, 2011). "Air Force wants 50% use of biofuel by 2016.". Standard-Examiner. Retrieved September 3, 2011.
  19. ↑ http://www.volkskrant.nl/economie/article1311609.ece/KLM_vervoert_passagiers_op_plantenbrandstof?source=rss
  20. ↑ Howell, Katie (November 23, 2009). "KLM Carries Passengers in Biofuel Test Flight". The New York Times.
  21. ↑ "Gulfstream G450 First Aircraft to Cross Atlantic Using Biofuels"
  22. ↑ (Dutch) NRC (14 March 2012)Dutch company grows bio/diesel in Fukushima
  23. ↑ "FDA approves camelina as cattle feed supplement"
  24. ↑ "FDA approves camelina meal as broiler chicken feed (02/17/09)"
  25. ↑ "Camelina Meal OKd To Be Included In Laying Hen Rations"
  26. ↑ "Feeding Camelina SATIVA to Meat Turkeys, Western Meeting of Poultry Clinicians and Pathologists"
  27. ↑ http://www.agriculture.gov.sk.ca/Default.aspx?DN=67a5b5a3-b4fc-402b-9ede-abcebb2b64b8
  28. ↑ Camelina sativa Genome Project http://www.camelinadb.ca/index.html
  29. ↑ Ruiz-Lopez, N.; Haslam, R. P.; Napier, J. A.; Sayanova, O. (January 2014). "Successful high-level accumulation of fish oil omega-3 long-chain polyunsaturated fatty acids in a transgenic oilseed crop". The Plant Journal 77 (2): 198–208. doi:10.1111/tpj.12378. 
  30. ↑ Coghlan, Andy (4 January 2014) "Designed plant oozes vital fish oils"' New Scientist, Page 12, also available on the Internet at
  31. ↑ Hunter, Joel and Greg Roth 2010. Camelina Production and Potential in Pennsylvania, Agronomy Facts 72. College of Agricultural Sciences, Crop and Soil Sciences, Pennsylvania State University.
  32. ↑ Fiche technique, Agridea, Suisse
  33. ↑ http://www.renewableenergyworld.com/rea/news/article/2009/06/biofuel-could-lighten-jet-fuels-carbon-footprint-over-80-percent?cmpid=WNL-Wednesday-June24-2009
  34. ↑ http://plants.usda.gov/plantguide/pdf/pg_casa2.pdf
  35. ↑ http://www.susoils.com/camelina/
  36. ↑ http://www.susoils.com/opportunities/protocol_spring.php

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