Manihot esculenta
What's the taxonomical classification of Manihot esculenta?
Manihot esculenta belongs to the kingdom Plantae and is classified within the phylum Streptophyta. Its taxonomic lineage continues through the class Equisetopsida and the subclass Magnoliidae, placing it within the order Malpighiales. Furthermore, this plant is a member of the family Euphorbiaceae, specifically falling under the genus Manihot, with the specific epithet esculenta.
| Taxonomic Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malpighiales |
| Family | Euphorbiaceae |
| Genus | Manihot |
| Species | esculenta |
What are the morphological characteristics of this plant?
Manihot esculenta has a woody perennial structure featuring large, palmately lobed leaves, tuberous adventitious roots, and small, white or cream-colored flowers. The leaves typically consist of three to nine distinct lobes that radiate from a central point on the petiole. Below the surface, the plant develops thick, starchy storage roots that serve as the primary edible component. The stems are erect and can reach several meters in height, often displaying a greenish or brownish bark. Small, inconspicuous flowers are arranged in axillary clusters, leading to the production of capsule-like fruits.
What is the geographical distribution of this plant?
This plant is native to the tropical regions of South America, specifically spanning from southern Mexico through the Amazon basin. While its origins are centered in these warm, humid climates, it has been widely introduced to other tropical and subtropical areas across the globe. Extensive cultivation is now found throughout much of Africa, Southeast Asia, and the Pacific Islands due to its ability to thrive in poor soils. In many of these new territories, it serves as a vital staple crop for local populations. The plant's distribution remains largely limited to regions that lack harsh frost.
How is this plant cultivated?
This plant, commonly known as cassava, is cultivated by planting stem cuttings into well-drained, tropical soils that maintain consistent warmth.
Farmers typically place these cuttings several inches deep into the earth to encourage the development of large starchy tubers. Because the crop is highly drought-tolerant, it can thrive in marginal lands where other food staples might fail. Proper spacing is essential during the planting process to allow enough room for the extensive root systems to expand.
Once established, the plant requires minimal chemical intervention but benefits greatly from consistent sunlight.
What parts of this plant are used medicinally?
This plant Manihot esculenta offers medicinal benefits through its root, leaves, stem, cortex, and pith. The edible root is frequently utilized for its nutritional and therapeutic properties in traditional practices. Leaves can be processed to treat various ailments, including skin inflammation and certain digestive issues. Within the stem, the cortex and pith contain specific compounds that contribute to the plant's overall pharmacological potential. Each of these distinct parts provides unique bioactive elements used in different herbal remedies.
According to a study published by "Plants (Basel, Switzerland)", the provided scientific study focuses on the fresh root yield (FRY) and dry matter content (DMC) of Manihot esculenta. The research evaluated 11 cassava genotypes using a randomized complete block design across 6 trial sites in South Africa. Analysis showed that the percentage variation due to GEI was higher than the percentage variation due to genotype for FRY. The study identified UKF3 (G6), 98/0002 (G2) and P4/10 (G5) as the highest yielding and most stable genotypes for FRY. Additionally, 98/0002 (G1), UKF3 (G6) and UKF9 (G11) were the highest yielding and most stable for DMC. No information regarding the medicinal use of any plant parts was included in the provided text.
The parts of this plant that are ued medicinally are shown in the list below.
- root
- leaves
- stem
- cortex
- pith
What traditional systems uses this plant?
This plant, known as cassava, has been a primary caloric staple in tropical regions for centuries and serves various roles in Traditional African Medicine to treat ailments such as inflammation and digestive issues. Historical use patterns show that indigenous populations developed sophisticated methods to detoxify the roots by removing cyanogenic glycosides through soaking and fermentation. In many cultures, the starch is processed into flour for bread or utilized as a thickener in traditional culinary dishes. Beyond nutrition, different parts of the plant are frequently employed in folk remedies to manage skin conditions or fever. These diverse applications demonstrate the plant's deep integration into the social and medicinal structures of the communities that rely on it.
According to a study published by "Journal of ethnopharmacology", Manihot esculenta leaf was identified for treating malaria in the Iwo area. This specific plant part was used by 3.33% of the respondents. Within the ethnomedicinal survey, Manihot esculenta leaf was noted as the least frequently used species. The study identified 31 plant species for treating malaria in the Iwo area, which were distributed among 24 families.
The hystorical systems that uses this plant are shown in the list below.
- Traditional African Medicine
What are the pharmacological activities of Manihot esculenta?
This plant has pharmacological activities including alpha-amylase inhibition, alpha-glucosidase inhibition, anti-diabetic, anti-inflammatory, and antioxidant properties. These biological effects are primarily attributed to the presence of diverse phytochemicals found within its roots and leaves. The ability to inhibit digestive enzymes like alpha-amylase and alpha-glucosidase helps regulate postprandial glucose levels. Consequently, these mechanisms contribute significantly to its potential as an anti-diabetic agent in managing metabolic disorders. Furthermore, the plant exhibits anti-inflammatory and antioxidant actions that protect cells from oxidative stress and reduce systemic inflammation.
According to a study published by "Malaysian journal of nutrition", Manihot esculenta demonstrates significant inhibitory potential against key enzymes. In the alpha-amylase inhibition assay, the inhibitory potential was highest in Manihot esculenta for both the hexane extract at 59.22% and the dichloromethane extract at 54.15%. Additionally, the hexane extract of Manihot esculenta showed the highest inhibitory potential against alpha-glucosidase at 95.01%. These findings suggest a nutraceutical potential for the plant in the prevention of hyperglycemia and hypertension associated with type 2 diabetes.
The primary pharmacological activities of this plant are shown in the list below.
- alpha-amylase inhibition
- alpha-glucosidase inhibition
- anti-diabetic
- anti-inflammatory
- anti-oxidant
What medicinal compounds this plant contains?
This plant contains a variety of bioactive substances including amygdalin, cyanogenic derivatives, total cyanide, kaempferol 3-O-rutinoside, and quercetin 3-O-rutinoside. The presence of amygdalin and other cyanogenic derivatives is a significant chemical feature that leads to the release of total cyanide when the plant material is processed. These compounds are often studied for their potential physiological effects and metabolic pathways. Additionally, the plant provides beneficial flavonoids such as kaempferol 3-O-rutinoside and quercetin 3-O-rutinoside. These specific glycosides contribute to the overall medicinal profile of the plant species.
According to a study published by "Molecules (Basel, Switzerland)", the organs of three cassava varieties (BEN, RB, and MJ) contain glycosides, flavonoids, saponosides, steroids, tannins, coumarins, and cyanogenic derivatives. Young stems and fresh cassava leaves contained the highest amygdalin concentrations at 11,142.99 µg 10 g-1 and 9251.14 µg 10 g-1, respectively. The Agbeli derivative had an amygdalin content of 401.56 µg 10 g-1, while amygdalin extracts acted as DPPH radical scavengers with IC50 values ranging from 0.18 mg mL-1 to 2.35 mg mL-1. Administration of amygdalin extracts from the leaves of BEN and MJ varieties resulted in edema inhibition percentages between 21.77% and 27.89%. Specifically, the amygdalin extract of the BEN variety significantly (p < 0.0001) reduces edema.
The primary medicinal compounds of this plant are shown in the list below.
- amygdalin
- cyanogenic derivatives
- total cyanide
- cassava starch ester
- glycosides
What health conditions is this plant used for?
This plant is used for treating diarrhea, diarrheal diseases, infectious diarrhea, gastrointestinal nematode parasite infections, and liver injury. The various parts of the plant contain bioactive compounds that help manage intestinal distress. These properties are particularly effective in combating the symptoms associated with different infectious diarrhea cases. Additionally, its medicinal applications extend to neutralizing gastrointestinal nematode parasite infections within the digestive tract. The plant also demonstrates therapeutic potential in mitigating the effects of liver injury.
According to a study published by "Journal of Ayurveda and integrative medicine", the medicinal uses of Manihot esculenta Crantz include the treatment of diarrhea. Researchers tested the ethanolic leaf extract of this plant in doses of 50 mg/kg, 100 mg/kg, and 200 mg/kg in Wistar rats. The extract decreased intestinal fluid volume in a dose-dependent manner, though no extract group was comparable with the standard drug loperamide at 5 mg/kg. Additionally, the plant significantly inhibited gastrointestinal motility, with doses of 100 mg/kg and 200 mg/kg being comparable to the standard drug atropine sulfate at 5 mg/kg. These findings showed significant antidiarrheal activity with p-values <0.05.
The main health conditions this plant is used for are shown in the list below.
- diarrhea
- diarrheal diseases
- infectious diarrhea
- gastrointestinial nematode parasite infections
- liver injury
What are the herbal preparations of this plant?
This plant is Manihot esculenta, and its medicinal herbal preparations include aqueous extracts, ethanol extracts, ethyl acetate fractions, powders, and Manihot esculenta-based meal. Researchers utilize aqueous extracts to isolate water-soluble bioactive compounds for various therapeutic applications. Ethanol extracts are frequently employed to capture a broader range of phytochemicals, while the ethyl acetate fraction specifically targets less polar constituents. Fine powders derived from the plant parts can be administered directly or incorporated into topical formulations. Additionally, the Manihot esculenta-based meal serves as a functional ingredient in specialized dietary or medicinal supplements.
According to a study published by "BioMed research international", Manihot esculenta has a great potential for the fight against infectious diarrhea. This plant can be used in the management of infectious diarrhea through its aqueous and hydroethanolic extracts. For active extracts, inhibition diameters range from 18.33 mm to 7 mm. These extracts can destroy Gram-negative bacteria by attacking the stability of their outer membrane. The high percentage of membrane destabilization achieved by these active extracts is significantly (p < 0.05) better than that of cefixime used as a reference.
The main herbal preparations of this plant are shown in the list below.
- aqueous extract
- ethanol extracts
- ethyl acetate fraction
- powders
- Manihot esculenta-based meal
What side effects this plant can have?
This plant can cause severe health issues including cassavaism, carcinogenic risk, diarrhea, uterine contractions, and intense pain due to the presence of cyanogenic glycosides. If consumed improperly, the release of cyanide can lead to cassavaism, a condition characterized by neurological damage and metabolic disturbances. High levels of these compounds are also linked to an increased carcinogenic risk through chronic exposure. Ingesting toxic amounts often triggers gastrointestinal distress such as diarrhea and acute abdominal pain. Furthermore, the chemical components can stimulate uterine contractions, posing significant risks during pregnancy.
According to a study published by "Environmental research", dietary dependence on plant components with inherent toxic potential can lead to neurotoxic diseases. Specifically, the use of bitter cassava root is associated with cassavism, which is a type of irreversible spastic paraparesis. These diseases are significant and preventable causes of morbidity in certain regions of Africa, Asia, and Oceania. The study links these neurotoxic effects to the consumption of Manihot esculenta components.
The main side effects this plant can have are shown in the list below.
- cassavism
- carcinogenic risk
- diarrhea
- uterine contraction
- pain
What herbs are paired with Manihot esculenta?
This plant, commonly known as cassava, pairs best with pungent and aromatic herbs such as garlic, cilantro, parsley, and chili peppers to balance its mild, starchy flavor.
The neutral profile of the tuber allows it to act as a canvas for strong seasonings that can cut through its density. Using fresh cilantro or parsley can add a necessary brightness to fried or boiled preparations. Incorporating garlic and chili provides a sharp contrast that enhances the natural sweetness of the root.
These herb combinations are essential for creating depth in traditional dishes across various global cuisines.