Synsepalum dulcificum

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Synsepalum dulcificum
MiracleBerry.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Sapotaceae
Genus: Synsepalum
Species:
S. dulcificum
Binomial name
Synsepalum dulcificum
Synonyms [2]

Bakeriella dulcifica(Schumach. & Thonn.) Dubard
Bumelia dulcifica uSchumach. & Thonn.
Pouteria dulcifica(Schumach. & Thonn.) Baehni
Richardella dulcifica(Schumach. & Thonn.) Baehni
Sideroxylon dulcificum(Schumach. & Thonn.) A.DC.
Synsepalum glycydoraWernham

Contents

Synsepalum dulcificum is a plant in the Sapotaceae family, native to tropical Africa. It is known for its berry that, when eaten, causes sour foods (such as lemons and limes) subsequently consumed to taste sweet. This effect is due to miraculin. Common names for this species and its berry include miracle fruit, [3] miracle berry, miraculous berry, [3] sweet berry, [4] [5] [6] and in West Africa, where the species originates, agbayun (in Yoruba), [7] [8] taami, asaa, and ledidi.

The berry itself has a low sugar content [9] and a mildly sweet tang. It contains a glycoprotein molecule, with some trailing carbohydrate chains, called miraculin. [10] When the fleshy part of the fruit is eaten, this molecule binds to the tongue's taste buds, causing sour foods to taste sweet. At neutral pH, miraculin binds and blocks the receptors, but at low pH (resulting from ingestion of sour foods) miraculin binds proteins and becomes able to activate the sweet receptors, resulting in the perception of sweet taste. [11] This effect lasts until the protein is washed away by saliva (up to about 30 minutes). [12]

The names miracle fruit and miracle berry are shared by Gymnema sylvestre and Thaumatococcus daniellii , [3] which are two other species used to alter the perceived sweetness of foods.

History

The berry has been used in West Africa for a long time. It is a part of the diet of the Yoruba people. [7] Outsiders began learning this fruit since at least the 18th century, when a European explorer, the Chevalier des Marchais, provided an account of its use there. Des Marchais, who was searching West Africa for many different fruits in a 1725 excursion, noticed that local people picked the berry from shrubs and chewed it before meals.

In the 1980s in the United States, an attempt was made to commercialize the fruit for its ability to mask non-sweet foods as sweet without a caloric cost, but became compromised when the Food and Drug Administration classified the berry as a food additive and required evidence of safety. [9] [13] [14] For a time in the 1970s, US dieters could purchase a pill form of miraculin. [15] This interest had a revival in food-tasting events at which tasters consume sour and bitter foods, such as lemons, radishes, pickles, hot sauce, and beer, then experience the perceived change to sweetness with miraculin. [16]

Characteristics

It is a shrub that grows 1.8–4.5 m (5.9–14.8 ft) in height and has dense foliage. [17] [18] Its leaves are 5–10 cm (2.0–3.9 in) long, 2.0–3.7 cm (0.79–1.46 in) wide, and glabrous below. They are clustered at the ends of the branchlets. The flowers are white. It carries red, 2 cm (0.79 in) long fruits. Each fruit contains one seed. [5]

Cultivation

Small specimen in a botanic garden Starr 980529-4175 Synsepalum dulcificum.jpg
Small specimen in a botanic garden

The plant grows best in soils with a pH as low as 4.5 to 5.8, in an environment free from frost and in partial shade with high humidity. It is tolerant of drought, full sunshine, and slopes. [5]

The seeds need 14 to 21 days to germinate. A spacing of 4 m (13 ft) between plants is suggested. [5]

The plants first bear fruit after growing about 3–4 years, [5] and produce two crops per year, after the end of the rainy season. This evergreen plant produces small, red berries, while white flowers are produced for many months of the year.

The seeds are about the size of coffee beans.

In Africa, leaves are attacked by lepidopterous larvae, and fruits are infested with larvae of fruit flies. The fungus Rigidoporus microporus has been found on this plant. [5]

Transgenic tomato plants have been developed in research projects that produce miraculin. [19] [20]

Uses and regulation

In tropical West Africa, where this species originates, the fruit pulp is used to sweeten palm wine. [21] Historically, it was also used to improve the flavor of soured cornbread, [8] but has been used as a sweetener and flavoring agent for diverse beverages and foods, such as beer, cocktails, vinegar, and pickles. [22]

Since 2011, the United States FDA has imposed a ban on importing Synsepalum dulcificum (specifying 'miraculin') from its origin in Taiwan, declaring it as an "illegal undeclared sweetener". However the ban does not apply when it is imported from other countries. [23] In 2021, the company Baïa Food Co. in Spain was granted to put Dried Miracle Berry on the market in the EU. [24]

Related Research Articles

<span class="mw-page-title-main">Food</span> Substances consumed for nutrition

Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin and contains essential nutrients such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells to provide energy, maintain life, or stimulate growth. Different species of animals have different feeding behaviours that satisfy the needs of their metabolisms and have evolved to fill a specific ecological niche within specific geographical contexts.

<span class="mw-page-title-main">Stevia</span> Sweetener and sugar substitute

Stevia is a sweet sugar substitute extracted from the leaves of the plant species Stevia rebaudiana native to Paraguay and Brazil.

<span class="mw-page-title-main">Kola nut</span> Fruit of the kola tree

The kola nut is the seed of certain species of plant of the genus Cola, placed formerly in the cocoa family Sterculiaceae and now usually subsumed in the mallow family Malvaceae. These cola species are trees native to the tropical rainforests of Africa. Their caffeine-containing seeds are about 5 centimetres (2.0 in) across and are used as flavoring ingredients in beverages applied to various carbonated soft drinks, from which the name cola originates.

<span class="mw-page-title-main">Thaumatin</span> Low-calorie sweetener and flavor modifier

Thaumatin is a low-calorie sweetener and flavor modifier. The protein is often used primarily for its flavor-modifying properties and not exclusively as a sweetener.

<span class="mw-page-title-main">Monellin</span> Protein

Monellin, a sweet protein, was discovered in 1969 in the fruit of the West African shrub known as serendipity berry ; it was first reported as a carbohydrate. The protein was named in 1972 after the Monell Chemical Senses Center in Philadelphia, U.S.A., where it was isolated and characterized.

<i>Stevia rebaudiana</i> Species of flowering plant

Stevia rebaudiana is a plant species in the genus Stevia of the family Asteraceae. It is commonly known as candyleaf, sweetleaf or sugarleaf.

<span class="mw-page-title-main">Miraculin</span> A protein from West Africa with taste-modifying activity

Miraculin is a taste modifier, a glycoprotein extracted from the fruit of Synsepalum dulcificum. The berry, also known as the miracle fruit, was documented by explorer Chevalier des Marchais, who searched for many different fruits during a 1725 excursion to its native West Africa.

<span class="mw-page-title-main">Lactisole</span> Chemical compound

Lactisole is the sodium salt and commonly supplied form of 2-(4-methoxyphenoxy)propionic acid, a natural carboxylic acid found in roasted coffee beans. Like gymnemic acid, it has the property of masking sweet flavors and is used for this purpose in the food industry.

<span class="mw-page-title-main">Sweetness</span> Basic taste

Sweetness is a basic taste most commonly perceived when eating foods rich in sugars. Sweet tastes are generally regarded as pleasurable. In addition to sugars like sucrose, many other chemical compounds are sweet, including aldehydes, ketones, and sugar alcohols. Some are sweet at very low concentrations, allowing their use as non-caloric sugar substitutes. Such non-sugar sweeteners include saccharin and aspartame. Other compounds, such as miraculin, may alter perception of sweetness itself.

<span class="mw-page-title-main">Brazzein</span> Protein

Brazzein is a protein found in the West African fruit of Oubli. It was first isolated by the University of Wisconsin–Madison in 1994.

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<span class="mw-page-title-main">Taste receptor</span> Type of cellular receptor that facilitates taste

A taste receptor or tastant is a type of cellular receptor which facilitates the sensation of taste. When food or other substances enter the mouth, molecules interact with saliva and are bound to taste receptors in the oral cavity and other locations. Molecules which give a sensation of taste are considered "sapid".

<span class="mw-page-title-main">Curculin</span> Sweet protein from Malaysia with taste-modifying activity

Curculin or neoculin is a sweet protein that was discovered and isolated in 1990 from the fruit of Curculigo latifolia (Hypoxidaceae), a plant from Malaysia. Like miraculin, curculin exhibits taste-modifying activity; however, unlike miraculin, it also exhibits a sweet taste by itself. After consumption of curculin, water and sour solutions taste sweet. The plant is referred to locally as 'Lumbah' or 'Lemba'.

<i>Pentadiplandra</i> Genus of flowering plants

Pentadiplandra brazzeana is an evergreen shrub or liana that is the only species assigned to the genus Pentadiplandra, and has been placed in a family of its own called Pentadiplandraceae. It produces large red berries, sometimes mottled with grey. It is known from West-Central Tropical Africa, between northern Angola, eastern Nigeria and western Democratic Republic of Congo. The berry is sweet in taste due to the protein, brazzein, which is substantially sweeter than saccharose. Brazzein may be useful as a low-calorie sweetener, but is not yet allowed as a food additive in the United States and the European Union.

<i>Thaumatococcus daniellii</i> Species of flowering plant

Thaumatococcus daniellii, also known as miracle fruit or miracle berry, is a plant species from tropical Africa of the Marantaceae family. It is a large, rhizomatous, flowering herb native to the rainforests of western Africa in Sierra Leone, southeast to Gabon and the Democratic Republic of the Congo. It is also an introduced species in Australia and Singapore.

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<span class="mw-page-title-main">Taste</span> Sense of chemicals on the tongue

The gustatory system or sense of taste is the sensory system that is partially responsible for the perception of taste (flavor). Taste is the perception stimulated when a substance in the mouth reacts chemically with taste receptor cells located on taste buds in the oral cavity, mostly on the tongue. Taste, along with the sense of smell and trigeminal nerve stimulation, determines flavors of food and other substances. Humans have taste receptors on taste buds and other areas, including the upper surface of the tongue and the epiglottis. The gustatory cortex is responsible for the perception of taste.

Magical fruit may refer to:

References

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  20. Sun, Hyeon-Jin; Hiroshi Kataoka; Megumu Yano; Hiroshi Ezura (2007). "Genetically stable expression of functional miraculin, a new type of alternative sweetener, in transgenic tomato plants". Plant Biotechnology Journal. 5 (6): 768–777. doi: 10.1111/j.1467-7652.2007.00283.x . ISSN   1467-7644. PMID   17692073.
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