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Acerola

Acerola

Malpighia emarginata

Acerola (Malpighia emarginata), also known as the Barbados cherry or West Indian cherry, is a tropical fruit-bearing shrub or small tree in the family Malpighiaceae. Despite its common name, it is not a true cherry (Prunus) but rather a member of the Malpighiales order.

Acerola is best known for its extraordinary vitamin C content — among the highest of any fruit in the world — making it a prized species in both traditional medicine and the global nutraceutical industry.

• The name "acerola" derives from the Spanish/Portuguese adaptation of the Arabic word "az-zuʿrūra," meaning "azarole" (a reference to a similar-looking Mediterranean fruit)
• Also commonly called Barbados cherry, West Indian cherry, or Puerto Rican cherry
• The species name "emarginata" refers to the slightly notched (emarginate) tip of its leaves

Acerola is native to the tropical and subtropical regions of the Americas, with its natural range spanning from southern Mexico through Central America, the Caribbean islands, and into northern South America (including parts of Brazil, Venezuela, and Colombia).

• Center of origin is believed to be the Yucatán Peninsula of Mexico and the Caribbean islands
• The species was widely dispersed throughout the tropics by Spanish and Portuguese colonizers during the 16th and 17th centuries
• Today, Brazil is the world's largest commercial producer and exporter of acerola, with extensive plantations in the northeastern states (Bahia, Pernambuco, Ceará)
• Also cultivated commercially in Puerto Rico, Hawaii, parts of Southeast Asia, and southern India

The Malpighiaceae family is predominantly neotropical, with approximately 75 genera and 1,300 species concentrated in the New World tropics. The genus Malpighia comprises around 40–50 species, most of which are native to the Caribbean and Central America.
Acerola is a semi-deciduous to evergreen shrub or small tree, typically reaching 2–6 meters in height under cultivation, though it can grow taller in the wild.

Trunk & Bark:
• Trunk is relatively slender, often branching low to the ground
• Bark is smooth to slightly rough, grayish-brown

Leaves:
• Simple, opposite arrangement on the stem
• Shape: oblong-elliptic to ovate-lanceolate, approximately 2–7 cm long and 1–4 cm wide
• Leaf apex is characteristically emarginate (slightly notched) — the defining trait referenced in the species name
• Margins are entire (smooth, without teeth)
• Surface is glossy dark green above, paler beneath
• Covered with fine trichomes (hairs), especially on young growth, which can be irritating to sensitive skin

Flowers:
• Bloom in axillary cymes (small clusters emerging from leaf axils)
• Individual flowers are ~1–2 cm in diameter, with five petals
• Petals are fringed (crenulate margins), typically pink to rose-colored with a lighter center
• Flowers are self-incompatible in many cultivars, requiring cross-pollination for optimal fruit set
• Primary pollinators include bees and other insects

Fruit:
• A fleshy drupe (stone fruit), round to slightly oblate, approximately 1–3 cm in diameter
• Ripens from green to bright red or deep crimson (occasionally yellow-orange in some varieties)
• Skin is thin and smooth; flesh is juicy, divided into three lobes
• Each fruit contains three small, hard triangular seeds (pyrenes)
• Flavor is tart to subacid when ripe, sometimes described as a blend of cherry, apple, and citrus
• Fruit is highly perishable — begins to deteriorate within 2–3 days of harvest at room temperature, necessitating rapid processing or cold storage
Acerola thrives in tropical and subtropical climates with distinct wet and dry seasons.

Climate Requirements:
• Optimal temperature range: 25–28°C
• Can tolerate brief periods of cooler temperatures but is frost-sensitive (damage occurs below ~4°C)
• Requires abundant sunlight for maximum fruit production and vitamin C synthesis
• Annual rainfall of 1,200–1,600 mm is ideal, though it can tolerate drier conditions with irrigation

Soil Preferences:
• Adaptable to a range of soil types, from sandy loams to clay loams
• Prefers well-drained soils with a slightly acidic to neutral pH (5.5–6.5)
• Does not tolerate waterlogged conditions

Ecological Interactions:
• Flowers attract a variety of pollinators, particularly native bees and honeybees
• Fruits are consumed by birds and small mammals, which aid in seed dispersal in wild populations
• The dense branching habit provides shelter for small wildlife

Reproduction:
• Can be propagated by seed, cuttings, grafting, or air layering
• Seed-grown plants typically begin fruiting within 2–3 years
• Grafted cultivars may produce fruit within the first year after grafting
• A mature plant can produce multiple harvests per year (up to 4–6 cropping cycles annually in tropical conditions)
Acerola is renowned for its exceptional nutritional profile, particularly its extraordinarily high vitamin C (ascorbic acid) content.

Vitamin C Content:
• Fresh acerola fruit contains approximately 1,000–4,500 mg of vitamin C per 100 g of pulp — roughly 15–50 times the concentration found in oranges (~50 mg/100 g)
• Some individual fruits have been recorded with levels exceeding 5,000 mg/100 g, making acerola one of the richest natural sources of vitamin C known
• Vitamin C content is highest in slightly underripe fruit and decreases as the fruit fully ripens

Other Nutrients (per 100 g of fresh fruit, approximate values):
• Calories: ~32 kcal
• Carbohydrates: ~7–8 g
• Protein: ~0.4–0.8 g
• Dietary fiber: ~1–2 g
• Vitamin A (as beta-carotene): ~766 IU
• B vitamins (B1, B2, B3): present in modest amounts
• Minerals: potassium (~146 mg), magnesium (~18 mg), calcium (~12 mg), phosphorus (~11 mg), iron (~0.2 mg)

Phytochemicals:
• Rich in anthocyanins (responsible for the red pigmentation)
• Contains flavonoids, carotenoids, and phenolic compounds with antioxidant properties
• These bioactive compounds contribute to acerola's use in functional foods and dietary supplements
Acerola is generally considered safe for human consumption and is widely used as a food and dietary supplement.

• No significant toxicity has been reported from normal dietary consumption of the fruit
• Due to its extremely high vitamin C content, excessive supplementation (well above recommended daily intake) may cause gastrointestinal discomfort, diarrhea, or kidney stone predisposition in susceptible individuals
• The fine trichomes (hairs) on leaves and young stems can cause skin irritation or contact dermatitis in sensitive individuals
• As with any fruit, individuals with known allergies to Malpighiaceae family members should exercise caution
Acerola is cultivated both commercially and in home gardens throughout the tropics and subtropics. It is relatively fast-growing and can begin producing fruit within 2–3 years from seed.

Light:
• Requires full sun for optimal fruit production and maximum vitamin C synthesis
• Can tolerate partial shade but fruit yield and quality will be reduced

Soil:
• Well-drained, fertile soil with a pH of 5.5–6.5 is ideal
• Incorporate organic matter (compost or well-rotted manure) to improve soil structure and fertility
• Avoid heavy clay soils that retain excess water

Watering:
• Regular watering is essential, especially during flowering and fruiting
• Maintain consistent soil moisture but avoid waterlogging
• Drip irrigation is preferred in commercial plantings

Temperature:
• Thrives in warm tropical to subtropical climates (25–28°C)
• Protect from frost; temperatures below 4°C can cause significant damage
• In marginal climates, acerola can be grown in containers and moved indoors during cold periods

Fertilization:
• Responds well to balanced fertilization (e.g., NPK 10-10-10 or similar)
• Apply fertilizer 3–4 times per year during the growing season
• Supplemental micronutrients (zinc, boron, iron) may be beneficial in deficient soils

Pruning:
• Light pruning helps maintain shape and encourages new fruiting wood
• Remove dead, diseased, or crossing branches
• Acerola fruits on new growth, so moderate pruning can stimulate production

Propagation:
• Seed: viable but results in variable offspring; commonly used for rootstock
• Cuttings: semi-hardwood cuttings root readily and preserve cultivar characteristics
• Grafting: cleft grafting or side-veneer grafting onto seedling rootstock
• Air layering: effective for small-scale propagation

Common Problems:
• Fruit fly infestations (particularly Anastrepha spp.) are a major pest in tropical regions
• Fungal diseases (anthracnose, leaf spot) can affect fruit and foliage in humid conditions
• Rapid post-harvest deterioration requires prompt refrigeration or processing
Acerola has a wide range of uses spanning food, beverage, nutraceutical, cosmetic, and ornamental applications.

Food & Beverage:
• Consumed fresh in regions where it is grown, though its tart flavor and extreme perishability limit fresh market distribution
• Widely processed into juices, nectars, concentrates, jams, jellies, and frozen pulp
• Used as a natural flavoring and coloring agent in yogurts, ice creams, and confections
• Acerola juice and pulp are major export products from Brazil

Nutraceutical & Dietary Supplements:
• One of the most popular natural sources of vitamin C in dietary supplement formulations
• Sold as acerola cherry powder, capsules, tablets, and chewable vitamin C supplements
• Marketed as a "natural" alternative to synthetic ascorbic acid
• Freeze-dried acerola powder retains high vitamin C levels and is used in functional foods and superfood blends

Traditional Medicine:
• Used in folk medicine across Latin America and the Caribbean for colds, flu, and general immune support
• Employed as a remedy for diarrhea, dysentery, and liver complaints in some traditional systems
• Used topically in some cultures for wound healing

Cosmetics & Skincare:
• Acerola extract is incorporated into skincare products for its high antioxidant (vitamin C) content
• Marketed in anti-aging serums, brightening creams, and facial masks
• Vitamin C from acerola is valued for its purported role in collagen synthesis and skin radiance

Ornamental:
• Grown as an ornamental shrub in tropical gardens for its attractive pink flowers and bright red fruits
• Suitable for hedgerows, container planting, and bonsai in warm climates

재미있는 사실

Acerola holds the record as one of the most vitamin C-dense fruits ever documented — a single acerola fruit can contain more vitamin C than an entire bag of oranges. • During World War II, British children were given acerola syrup as a substitute for citrus fruits, which were unavailable due to wartime shipping disruptions • The vitamin C content of acerola is so extraordinarily high that 100 g of fresh pulp can provide over 3,000% of the recommended daily intake • Brazil's acerola industry expanded dramatically in the 1990s after Japanese researchers identified the fruit's exceptional nutritional value, leading to massive demand from the Japanese supplement market • Despite being called a "cherry," acerola is not related to true cherries (Prunus spp.) at all — the resemblance is purely superficial, a case of convergent naming based on similar fruit size and color • Acerola fruit begins to lose vitamin C rapidly after harvest — within 48 hours at room temperature, significant degradation occurs, which is why most commercial acerola is frozen, freeze-dried, or processed immediately after picking

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