Hippophae rhamnoïdes / Duindoorn / Argousier

De Nederlandse naam duindoorn is gemakkelijk te verklaren, een doornige plant die in de duinen groeit. De Latijnse naam Hippophae is een samenvoeging van hippos, paard en phao, ik dood. De Oude Grieken zouden een aftreksel van de bessen gebruikt hebben om ongedierte bij paarden te doden. Insectendodend lijkt me vreemd, maar mogelijk heeft het te maken met de huidregenerende werking van Duindoorn, waar we nu in de cosmetica weer gebruik van maken. Dat phae zou ook van phaeiton, glanzend of phaino, licht kunnen komen. Respectievelijk omdat het de paarden een glanzende huid zou bezorgen of hen zou kunnen helpen om beter te zien of zelfs om blindheid te genezen.

De oranjebessen zijn in feite schijnvruchten, botanisch is het nootje dat in de oranje bes zit, de eigenlijke vrucht. Wat opvalt is ook dat niet alle struiken bessen dragen. Duindoorn is tweehuizig, dat betekent dat er mannelijke en vrouwelijke planten zijn. En natuurlijk dragen alleen de bevruchte vrouwelijke planten bessen.

Argousier  / Hippophae rhamnoides L. Eléagnacées
L'Argousier est un arbuste épineux produisant en automne des baies jaune orangé, de la grosseur d'un pois, à goût acidulé. On le rencontre surtout près des grands fleuves comme le Rhin ou le Rhône, mais il quitte leurs berges dans les Alpes pour s'installer le long des torrents montagnards et sur les talus sableux au bord des routes. Il atteint de cette façon la limite des forêts, vers 1 800 mètres.
Les baies renferment principalement de la vitamine C tonique, ainsi que de la provitamine A et d'autres vitamines actives. Leur quantité impressionnante d'acide ascorbique fait même cultiver la plante dans certains pays (Prusse orientale). Elles sont donc éminemment antiscorbu­tiques, de même qu'astringentes et vermifuges. En 1574 Caspard Bauhin le frère de Jean, signalait déjà qu'on en faisait un rob efficace contre la dysenterie. De nos jours on en tire de la marmelade ou du sirop, ainsi qu'u^ extrait liquide concentré utilisé en doses homéopathiques, ou en élixir e: en bonbons.
L'Argousier est surtout prisé dans les pays nordiques, où ses baies servent à des usages variés. En Scandinavie, par exemple, où il es: commun, les fruits sont mangés crus ou cuits, et servent également poLr épicer les sauces de poisson. En Finlande et en Angleterre, on en fait des marmelades. En Sibérie, on en fabrique la « vodka sibérienne ». Mais l'Europe centrale utilise la plante avec autant d'appétit. Une enquête ethnobotanique menée par Fr. Unger en Moldavie et Valachie, au milieu a„ siècle dernier, indique parmi les fruits sauvages utilisés en cuisine ceux des Eglantiers, des Framboisiers, des Prunelliers, des Hêtres, des Argousiers et d'autres encore. Il ne faut pas s'étonner outre mesure de cette variété d'origine : elle était de règle autrefois, et bien des petits fruits abandonnés de nos jours, surtout en France, étaient couramment consommés jadis Dans le riche éventail des produits naturels goûtés par nos grands-parents, on constate une régression profonde du siècle dernier à notre époque, où les produits de consommation sont devenus de plus en plus stéréotypés.

Duindoorn / Sea buckthorn HerbalGram

History and Cultural Significance
For over a thousand years, preparations made from sea buckthorn have been used medicinally in Mongolia, China, and Tibet.2 The first documented benefits of sea buckthorn were recorded in the classic 8th century CE Tibetan medical text rGyud Bzi (The Four Books of Pharmacopeia). Young branches and leaves were used in ancient Greece as horse feed, which resulted in weight gain and a healthy shine to the horses’ coats, and accounts for the genus name, Hippophae (shining horse). Sea buckthorn selection and breeding began in Russia in 1933, and researchers there have investigated active compounds in the plant’s fruits, leaves, and bark since the 1940s.8 Russian cosmonauts incorporated the fruit juice into their diet and the fruit pulp oil into a cream to help protect them from solar radiation. An estimated 1.2 million hectares (nearly 3 million acres) of sea buckthorn are found in China, half of which have been cultivated, with about 150 processing plants that produce over 200 industrial and consumer products such as pharmaceuticals and cosmetics.9 Sea buckthorn fruit is an official medicine in the Chinese pharmacopeia, indicated for the treatment of cough with profuse expectoration, indigestion, stagnancy of food with abdominal pain, amenorrhea due to blood stagnation, and traumatic swelling and bleeding under the skin (eccymosis).10

Various medicinal forms of sea buckthorn are prepared for oral and topical administration in Chinese medicine. In addition to the Chinese pharmacopeial standard for the dried fruit (Fructus Hippophae PPRC), which is used in decoctions, there are other “national standards” established for the seed oil, the fruit oil, and for “flavones powder” (powdered extract of fruit pulp and leaves standardized to isorhamnetin). There are non-official industry standards established for the juice, juice concentrate, powdered juice (spray-dried and freeze-dried), and wine.11 Sea buckthorn oil, extracted from the seeds and/or the fruits, is used externally in cosmetics as a natural ultraviolet light filter, in skin-regenerating compositions, and as a natural plasticizer and emulsifier.12 In Europe, CO2 extracts of the fruit pulp and of the seeds (oily or semi-solid extracts containing CO2-soluble lipohilic components) are produced for pharmaceutical products, cosmetics for skin care, sunburn, and for essential fatty acid food supplements. Sea buckthorn fruit is high in vitamin A and C,1,12 protein, fatty acids,13 carotene,14 and vitamin E.15 The fruit is used to make bonbons, marmalades, syrups, fruit-flavored herb teas, liquors, dietary supplements, and medicinal herbal products.

Sea buckthorn also has environmental value. Between 1950 and 1985, 200,000 hectares (just over 494,210 acres) of sea buckthorn were planted in China for erosion control and fuel wood production.16 It is being used to reclaim wasteland and mined areas in Canada, Germany, Hungary, Romania, and Russia.

Modern Research
Both clinical and animal research has shown that sea buckthorn preparations, especially the oil obtained from the seeds or fruit, taken internally can treat clinical indicators associated with heart disease,17,18,19 and a powdered extract of the fruit and leaf, standardized to total flavones, was shown to improve heart function in a small randomized, double-blind, placebo-controlled trial.20 A randomized controlled trial investigating the effect of an undefined sea buckthorn dry extract granule (Sichuan Pharmaceutical Co. LTD) concluded that the extract may be useful for prevention and treatment of liver fibrosis.21 A small open-label pilot study investigated the treatment of chronic vaginal inflammation with orally administered capsules containing a mixture of oils extracted from sea buckthorn seeds and berries using supercritical CO2 (Omega 7 Sea Buckthorn Oil manufactured by Aromtech Ltd, Finland). Based on improvements seen in the trial, larger clinical trials are justified.22 The same authors carried out a double-blind, placebo-controlled trial using the same sea buckthorn oil preparation in female patients with Sjögren’s syndrome (an immunologic disorder characterized by the progressive destruction of the exocrine [tear, salivary and sweat] glands). Results of the trial suggest beneficial effects of sea buckthorn oil capsule on the overall condition of the mucous membranes of patients with Sjögren’s syndrome.23

Sea buckthorn oil is very stable and has shown promise for external use as a therapeutic skin cream ingredient.24 Numerous trials suggest its efficacy in wound and burn healing, skin grafts, and reducing tissue inflammation.25 Sea buckthorn pulp and seed oil has also been found to improve cases of radiation-induced dermatitis, wounds, and burns.26 One human clinical trial has shown sea buckthorn oil to be successful in treating skin pigmentation disorders and prematurely aging skin, as well as in removing freckles.27 Both sea buckthorn pulp oil and seed oil internally have been helpful in alleviating dermatitis in humans.28 (Although the chemistry of the 2 oils differs, they are often combined into one product.)

Future Outlook
Sea buckthorn occurs in sizable stands across the Eurasian continent and there is some concern about its being invasive, although there are both natural and conventional agricultural ways of controlling its spread.2 Conversely, it is rarely observed in the wild in Hungary and is protected there as an endangered species. Some experts on sea buckthorn think that this protection needs to be extended and that considerable research and development needs to occur to ensure sea buckthorn’s sustainability. Recent awareness of the plant’s nutritional and medicinal value has led to exploitation and destruction of sea buckthorn in its natural habitat.2

Sea buckthorn grows well in certain parts of Canada and was recently promoted there as a cash crop; however, attempts to produce commercially viable sea buckthorn fruits there have been unsuccessful, due to the planting of a non-optimal variety, resulting in losses by growers (C. Kehler email to M. Blumenthal, Mar. 29, 2008). Agriculture and Agri-Food Canada (AAFC) estimated in 2002 that there was a potential annual demand for 10,000 kilograms (about 22,000 pounds) of sea buckthorn oil in North America.16 To produce this amount of oil,1.5 million kilograms (about 3,307,000 pounds) of raw fruit would be needed. AAFC also reported that there is potential for a long-term sea buckthorn market in Europe of perhaps 75,000 kilograms (165,000 pounds) of fruit.16

Various types of sea buckthorn preparations have recently been introduced as dietary supplements and cosmetics in the United States and as natural health products in Canada. Given the relatively wide range of use and the growing body of scientific and clinical research on sea buckthorn preparations, it is likely that they will become popular consumer products in the near future.

-Gayle Engels

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  • Haining Q, Gilbert MG. Hippophaë. In: Wu ZY, Raven PH, Hong DY, eds. Flora of China. Vol. 13 (Clusiaceae through Araliaceae). Beijing: Science Press, and St. Louis: Missouri Botanical Garden Press;2007:270-273.
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  • Chinese Pharmacopoeia Commission. Fructus Hippophae. In: Pharma-copoeia of the People’s Republic of China (2005) Volume I. Beijing: People’s Medical Publishing House. 2005;97-98.
  • Dawa G. Hippophae rhamnoides L. In: A Clear Mirror of Tibetan Medicinal Plants, Vol 1. Rome: Cultural Association Tibet Domani;1999:192-193.
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  • International Seabuckthorn Association. Chinese national and industry standards of products. Available at: http://www.icrts.org/commerce_show. asp?ID=639. Accessed February 22, 2008.
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  • Kostryrko DR. Introduction of useful plants into the Donetsk Botanic Garden of the Ukrainian Academy of Sciences. Introd Akklimat Rast.1990;14:31-34. (from Hortic. Abst. 61: 3368). Cited in Li TSC, Beveridge THJ. Sea Buckthorn (Hippophae rhamnoides L.): Production and Utilization. Ottawa: NRC Research Press; 2003.
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Bioactivity-Guided Investigation of the Anti-Inflammatory Activity of Hippophae rhamnoides Fruits. Planta Med 2018; 84(01): 26-33
According to modern ethnobotanical records, the fruit of Hippophae rhamnoides is effective in the treatment of different allergic symptoms. In order to obtain pharmacological evidence for this observation, the fruit was investigated for anti-inflammatory activity using in vivo animal models. Aqueous and 70% MeOH extracts were tested in 48/80-induced rat paw edema assay after oral administration, and it was found that the 70% MeOH extract (500 mg/kg) reduced significantly edema volume (0.660 ± 0.082 mL vs. control 0.935 ± 0.041 mL). Extracts of different parts of the fruit (pulp, peel, seed) were investigated in the same assay, and the peel extract was shown to exhibit maximum edema-reducing effect (0.470 ± 0.124 mL vs. control 0.920 ± 0.111 mL). This extract was used to elucidate the mode of action. Different inflammation inducers (serotonin, histamine, dextran, bradykinin, and carrageenan) were applied in the rat paw model, but the extract inhibited only the compound 48/80 elicited inflammation. The active extract was then fractionated by solvent-solvent partitioning and chromatographic methods with the guidance of the 48/80-induced anti-inflammatory assay, and the main compounds responsible for the activity were identified as ursolic acid and oleanolic acid. Our data suggest that the activity is most probably based on a membrane stabilizing effect caused by the inhibition of degranulation of mast cells. Moreover, previously unknown 2,5-bis-aryl-3,4-dimethyltetrahydrofuran lignans, nectandrin B, fragransin A2, and saucernetindiol were isolated and identified from H. rhamnoides for the first time.