Mandarin/Clementine/Tangerine
By Jeanne Rose ~ May 2019
Synopsis – Mandarin, Clementine, Tangerine Oil and the Plant ~ A complete description of this part of the Citrus family with familial ties, country of origin, characteristics, body care, skin care, formulas and recipes on how to use this oil.
LATIN BINOMIAL/BOTANICAL ~ Mandarin and Tangerine, both are Citrus reticulata Blanco var. either Mandarin or Tangerine while Clementine is considered Citrus x reticulata var. Clementine.
There is a naming problem in citrus, and it is complicated by the number of edible citrus that are recognized plus the many crosses, back-crosses, rootstock clones, hybrids, species, subspecies and varieties. Anywhere from 12 up to 162 different ones are accorded subspecies or varietal names. Mandarin can be called Citrus reticulata var. mandarina and Tangerine can be called Citrus reticulata var. tangerina. Mandarin has also been called var. deliciosa and of course it has other names as well.
But as Mabberley says of citrus, “… the morphological distinctions are slight and much of the commercially significant striking degustatory distinction rests on a subtlety, the presence and relative proportions of the two stereoisomers of limonene, one of which is bitter (as in lemon), the other sweet (as in mandarin), resulting in the differing tastes of the flesh and juice.”
FIVE PURE ORIGIN CITRUS GENUS
Examples of hybrid Citrus, showing their derivation from the pure founder species, from
— Author Agricolae
Family – Rutaceae
Naming: Essential Oil Profile – All tangerines are mandarins, but not all mandarins are tangerines generally a difference of terroir. A Tangerine is a cultivar of the Mandarin, Citrus reticulata and despite the common name, it is just a different variety of mandarin.
“Asian art, especially from China and India, often features the Mandarin crowned with thin, green leaves and clinging delicately from a willowy tree. Mandarins are noted for loose skin, often referred to as “kid glove” because it’s soft and easy to peel, the mandarin that we know is juicy and somewhat tart with seeds. The height of the winter season finds an abundance of mandarins in the markets, often sitting next to tangerines.”1
All citrus is native to Asia, the Philippines and India, and it found its way from the art easel and the orchards across the Eur-Asian continent to Europe and then to the United States.
Tangerines, Clementine’s and Satsumas are three varieties of the mandarin orange and the most popular. Because the Mandarin orange can easily be crossed with other citrus, varieties pop up in differing climates (terroir) around the world. Growing seasons also differ, with some Tangerine harvests coming in through June.
Countries of Origin of Essential Oil ~ Good quality Mandarin oil comes from Italy, Clementine oil from Italy and the United
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GENERAL DESCRIPTION OF PLANT, HABITAT & GROWTH
Mandarin and Tangerine are from a fruit producing evergreen shrub with dark-green glossy leaves and fragrant flowers.
Mandarin, Citrus reticulata (syn. C. nobilis) (Rutaceae). “The Mandarin tree comes from southern China (a mandarin was a Chinese government official attired in a yellow dress). Today, the Mandarin fruit is mostly known as the seed-less, loosely peeled variety sometimes called Clementine, created by Pierre Clément in a lucky crossing experiment around 1900 when he was a leader of the agricultural school in Oran in Algeria.” 2
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“Mandarin groves are well-known in Sicily and are scattered throughout the provinces of Messina, Catania, and Palermo Mandarin oil is made by collecting the fruit peel and cold-pressing.
Green Mandarin (not ripe) is harvested from February through May; yellow Mandarin (not fully ripe) is harvested during October and November and fully ripe red Mandarin from December to January.
Tangerine, Citrus reticulata, “Dancy Tangerine is direct from an established manufacturer (since 1985) in Florida with access to some of the freshest fruit available.”3 The largest plantings come from Florida.
The first American tangerine was introduced to the market by the legendary citrus grower Col. Adam Dancy in 1867-1868. This acidic, richly flavored fruit immediately established a new category of citrus product in the United States – less tart than an orange, more complex and brighter than a Pomelo, and not oversweet like the Chinese Sweet Orange then in fashion.4
The Tangerine is just a variety of Mandarin orange and is often confused with the Clementine. They are both very close in taste and appearance but are not precisely the same fruit. Tangerines are a tropical fruit and are grown in USA climate zones 8 to 11. Standard trees that are planted outdoors will reach a height between 10 and 15 feet. Plant it where it is sunny and warm in good soil. As they grow the tree branches may bow down and there may be wart-like growths on the trunk. As with many citrus they may be grown on a different rootstock. Ripe and ready to pick February to April — the harvest season is dependent on terroir and may be different in different areas.
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Clementine, Citrus x reticulata, a popular stocking stuffer during the Christmas holiday are the smallest member of this group. The honey-sweet, seedless Clementine is the most eater-friendly of the Mandarin orange types and is a subgroup of the Tangerine. Tangerine vs. Clementine qualities include a thin skin on the Clementine that is tighter than a Tangerine but so easy to peel that a child can do it. They are harvested from February to April depending on the area.
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The differences between mandarin and tangerine cannot be explained by the differences in the way the oil is expressed because often identical methods are used…. “The soil, climatic and cultural conditions (terroir) prevailing in the various producing sections …have a certain, perhaps a fundamental, influence upon the chemical composition and, therefore, upon the physicochemical properties of the oils.”5
Tangerine and Clementine Differences
Tangerines are smaller and sweeter than an orange yet larger than a mandarin and with a skin that’s darker in color. The tangerine emigrated to America from Morocco’s port of Tangiers, from which it got its name. Tangerine qualities include a reddish-orange skin that distinguishes it from the lighter-skinned mandarin. Tangerines are the most popular type of mandarin, but they’re tarter. Like the mandarin, tangerines have seeds. The longer growing season puts tangerines in the market from November through May.
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THE KEEPING QUALITIES OF CITRUS OILS
“Lemon and Orange oils and other citrus oils improve after a year or two of cold
All the many Mandarin oils, Tangerine oils and Clementine oils I have collected over the years – all in one place at one time.
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PART OF PLANT USED IN DISTILLATION, HOW DISTILLED, EXTRACTION METHODS & YIELD
For Mandarin fruit, 100 kg of whole fruit yields 750-850 g. of oil. Green Mandarin essential oil is cold pressed from the peel of unripe green fruits. Yellow Mandarin essential oil is cold pressed from the peel of partially ripened fruits. Red Mandarin essential oil is cold pressed from the peel of fully ripened, mature fruits.
Tangerine when using the rotary juice extractor for juice (cuts and halves and expresses the juice) and then the screw press used to extract the peel oil, the peel yields an oil of a deep orange color and very nice odor and flavor. The yield is about 2 lb. per U.S. ton of fruit.
Clementine is not mentioned in Guenther’s book and I have been unable to find exact yield of essential oil to weight in any one of 10 sources that were checked.
Yield is 0.7%-0.8%. The essential oil of these citrus is either cold-pressed or sometimes steam-distilled from the peel (flavedo).
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ORGANOLEPTIC CHARACTERISTICS
Mandarin is named in relationship to its ripeness when harvested.
| THE QUALITIES EO | RED MANDARIN | YELLOW MANDARIN | GREEN MANDARIN | TANGERINE | CLEMENTINE |
| Color: | Light yellow | Yellow to greenish | Green-yellow | Golden orange | Pale yellow |
| Clarity: | clear | clear | clear | clear | clear |
| Viscosity: | Non-viscous | Non-viscous | Non-viscous | Non-viscous | Non-viscous |
| Taste of EO: | Sour, bitter back | sour | Bitter | Sweet, sour back note | Bitter, sour |
| Intensity of Odor From 1 – 10 | 5 | 4 | 3-4 | 4-5 | 4 |
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Odor Description ~ The scent of these five oils is shown in the ‘snapshot’ odor charts at the end of this post. They are all citrus, fruity and then with various back notes that separate them by odor. “You will know them by their odor.”7
The scent is certainly connected to the chemistry. Mandarin (Citrus reticulata Blanco) and the cold-pressed oils of Tangerine and Clementine contain considerable amounts of methyl N-methyl anthranilate. According to some if you mix this component with thymol in correct proportions you can duplicate a scent that is reminiscent of Mandarin. Add the terpenes of y-terpinene and –b-pinene and you can get an even more naturalscent. A-sinensal is abundant in Mandarin oil up to 0.2%.
When Clementine from Spain was analyzed by GC/MS, several new odorants were found but ‘No single odorant emerged as being characteristic of clementine oil aroma.’8
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Solubility ~ Mandarin is soluble in 7-10 volumes if 90% alcohol with some turbidity and Tangerine is incompletely soluble in 95% alcohol. With some age the waxes will separate out and can be filtered off and the oil is more soluble.
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I am fond of this illustration of the cold-pressing of green Mandarin fruit and wish to acknowledge the original of this. If you know it, please inform me.
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CHEMICAL COMPONENTS ~ The morphological distinctions of citrus are slight and much of the commercially significant striking degustatory (taste test) distinction rests on a subtlety, the presence and relative proportions of the two stereoisomers of limonene, one of which is bitter (as in lemon), the other sweet (as in mandarin), resulting in the differing tastes of the flesh and juice.
“Mandarin oil, made by cold-pressing of the peels of true Mandarin, has an elegant, deep, sweet, orange-like character, and is used in liqueurs and perfumery. The major odor impact compounds are the sesquiterpene aldehyde alpha-sinensal, also characterizing orange oil, and the aromatic ester methyl N-methyl anthranilate, giving the oil a neroli-like character (and a blue fluorescence).”
“ Clementine peel oil, on the other hand, is dominated by unsaturated aliphatic aldehydes, e.g. trans-4, 5-epoxy-(E)-2-decenal and (E, Z)-2, 6-dodecadienal, with an odor reminiscent of coriander leaf and having a high tenacity on the skin, together with sinensal and linalool.”2
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HISTORICAL USES ~ The fruit was used historically for digestive purposes.
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INTERESTING FACTS ~ The name comes from the mandarins of Cochin, China, where it originates, and to whom the fruit was offered as a gift”, essential aromatherapy, p. 147. Mandarins or Tangerines are given at Christmas in the Christmas stocking as a stand-in for the gold coins that were a tradition. They are also given for good luck and abundance at Chinese New Year which normally is in late January and February.
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GENERAL PROPERTIES
Properties are by IG=ingestion or IN=inhalation or AP=application. By Ingestion these citrus fruits (not the EO) are digestive, tonic, and stomachic; by inhalation the EO is sedative, soporific, relaxant, calmative, tonic, and antispasmodic; and by application the EO are astringent and slightly antiseptic.
Physical Uses & How used (IG or AP):
Application ~ If you use the essential oil in your skin care products, Mandarin and Tangerine will give them a slight astringency and be slightly antiseptic. In a moisturizer they will help tone and tighten skin, contributing to healthier and younger-looking skin.
Ingestion ~ The essential oils of Clementine, Tangerine and Mandarin are used in food products so yes, they are used internally. But these amounts of the EO in any product is extremely slight, so we suggest that unless they are very, very highly diluted in food or in an oil that you eat the food and not take the oils internally.
Emotional/Energetic/Meditative Uses (AP or IN) ~ Tangerine or yellow or red Mandarin EO will soothe grief, anger, and shock and when combined with Marjoram in a diffuser or upon inhalation will aid sleep. Since Mandarin is usually more expensive than Tangerine, I suggest you use Tangerine and I suspect that Clementine will work as well as any of these.
DIFFUSE/DIFFUSION ~ These warm sparkling bright citrus oils have great value in blends to cleanse the room air and refresh the senses. They are often very calming, soothing and relaxing.
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BLENDING: Mandarin, Tangerine and Clementine will blend well with all other citrus, and can feminize chypre blends, warm-up woody blends and work to brighten any floral blend. These three can be used with resins, Mediterranean herbs such as Marjoram, Lavender and Rosemary and are an important part of most top notes in fine perfumery. For a crisp scent use green Mandarin or green Lemon, for warmer heart notes use the riper citrus such as yellow or red Mandarin and Tangerine.
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HYDROSOL ~ I have been having a fine time using Mandarin hydrosol in my bath to soothe the skin and on my face as a toner. I have also used a teaspoon full in my tea in the afternoon and tried a bit in coffee to take the edge off the tannins. They are easily available in season or by special order from the company’s whose products are shown here.
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HERBAL USE OF THESE FRUITS AND PEELS ~ When you use citrus, there are many ways that all parts can be used. You can squeeze and drink the juice, then dry the peel for potpourri; you can eat the fruit and collect the peels to hydro-distill for a lovely hydrosol or you can slice and dry the fruit and use it for decorations on your Christmas tree or in your winter potpourri. The dried slices of any citrus look very festive on a Christmas tree and then when Christmas is over, the slices can be used to scent your potpourri and if there is enough scent left, they can be tinctured for perfume. I don’t think I would eat them at this point as they would have been in the air for well over 2 weeks and rather ‘tired’.
Dried Mandarin slices
Food Usage ~ TESTED AGAINST MICROORGANISMS ~ The essential oils from peels of Mandarin and Clementine were examined and tested. “Among the tested microorganisms, the oils were very active against Candida albicans, Escherichia coli, Lysteria innocua, Methicillin-Resistant S. aureus and Staphylococcus aureus with an inhibition zone varied from 9.16 to 27.63 mm. … All citrus oils studied exhibited antioxidant activity as DPPH free radical scavenger and reducing power in dose dependent manner. Mandarin oil showed the strongest activity compared to Clementine and the Wilking cultivar essential oils. The oils may be recommended as safe plant-based antimicrobials as well as antioxidants for enhancement of shelf life of food commodities.”6
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KEY USE ~ The fruit as a food and the essential oil as a sleeping aid.
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SCIENCE ARTICLE ~ Analytical characterization of mandarin (Citrus reticulata var. deliciosa Ten.) essential oil … First published: 04 November 2010, https://doi.org/10.1002/ffj.2014
Abstract
An investigation was performed on 124 samples of Sicilian Mmandarin essential oils (Citrus deliciosa Tenore), industrially cold pressed by different extraction techniques (Brown Oil Extractor and screw press). The samples were collected during the entire productive season (from September 2008 to March 2009). The aim of the study was to determine the composition of the volatile of the non‐volatile oxygen heterocyclic components, as well as the determination of the enantiomeric ratios of some volatile components by multidimensional GC with chiral column in the second dimension. Three new components were identified by LCMS‐IT‐TOF in the non‐volatile fraction (dimethyl‐nobiletin, isosinensetin, demethyl‐tangeretin). The results obtained are discussed to evaluate seasonal variation of the composition of the essential oil as well as the influence of the extraction techniques. This study gives a wide view on the composition of Sicilian mandarin (C. deliciosa Ten.) essential oils industrially produced during the entire productive season, useful to identify quality parameters for the analytical characterization of this product. Copyright © 2010 John Wiley & Sons, Ltd.
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ODOR SNAPSHOTS USING THE JEANNE ROSE ADVANCED VOCABULARY OF ODOR
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Green Mandarin, Yellow Mandarin, Red Mandarin
TANGERINE & CLEMENTINE
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LEARN TO SMELL AND DETECT ODOR
Read The Aromatherapy Book, Chapter 3, pages 63-66 and 375 Essential Oils and Hydrosols, Chapter 3, pages 27-31. These two books will assist you in learning how to describe odors.
Available at /books.html
Limbic system is the seat of memory and learning. Smell from left nostril and then to right nostril. The right nostril (right brain-creative) is important in detecting and evaluating the intensity of odor, and this hints at a broad olfactory asymmetry and the left nostril (left brain or logical) is for smelling location or place.
First Smell and 2nd Smell. Lurking in the olfactory epithelium, among the mucus-exuding cells, are cells that are part of the system that innervates the face (trigeminal nerve). It is suspected that pungent and putrid molecules penetrate them, interact with their proteins, and stimulate them to fire. Thus, there are two types of olfaction: first smell, the ordinary type for specific odors, and second smell for nonspecific pungency and putridity.”
There is also left brain and right brain smell-ability. Left brain smells location (maybe via logical use of EMG waves) while right brain smells intensity. The closer you get – the more intense the odor.
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References to articles
1 https://www.leaf.tv/articles/differences-between-a-mandarin-and-a-tangerine/
2 http://www.bojensen.net/EssentialOilsEng/EssentialOils.htm
3 www.edenbotanicals.com
4 https://www.slowfoodusa.org/ark-item/dancy-tangerine
5 Guenther: THE ESSENTIAL OILS, volume III, Citrus oils: Krieger. 1949.
6 Chemical profile, antimicrobial
and antioxidant activities of Citrus reticulata and Citrus clementina (L.)
essential oils, International
Food Research Journal 24(4) · August 2017
7 Jeanne Rose lectures
and “Natural Perfumery” workbook
6 Chemical profile,
antimicrobial and antioxidant activities of Citrus reticulata and Citrus
clementina (L.) essential oils, International Food Research Journal 24(4) · August
2017
7 Jeanne Rose lectures
and “Natural Perfumery” workbook
8 Characterization of the major odorants found in the peel oil of
Clementine. Flavour and Fragrance Journal. 04 July 2003.
References-General
Copeland, Dawn. Essential Oil Profiles. Aromatherapy Studies Course. 2000.
Harman, Ann. Harvest to Hydrosol
http://ultranl.com/products/mandarin-oil-green-italy/
Mabberley, D.J., Mabberley’s Plant Book, 2008 Third Edition with 2014 updates, Cambridge University Press
Ohloff, Günther: Scent and Fragrances: Springer-Verlag. 1990. Translated by Pickenhagen and Lawrence
Rose, Jeanne. 375 Essential Oils and Hydrosols
Rose, Jeanne. Natural Botanical Perfumery Workbook. 2000
Rose, Jeanne. The Aromatherapy Book, Applications & Inhalations
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Hybrids have an ‘x’ between the genus name and the species name. “Hybrids either get their parents’ names with an ‘x’ in between parent names (mother listed first), or a brand-new species epithet preceded by
Current citrus names, author unknown
