Talk:Jambu

Syzygium cumini (L.) SKEELS

Jambu

Section/Chapter	Herb database/Jambu
Botanical name(s)	Syzygium cumini (L.) SKEELS
Family	Myrtaceae
Availability	Available
Contributors	Team Dravyaguna
Year of publication	2026
Publisher	Charak Samhita Research, Training and Skill Development Centre
DOI	Awaited

Syzygium cumini (L.) SKEELS, popularly known as Jambu (Jamun or Jaman), is a large evergreen tropical tree native to the Indian subcontinent and neighboring regions of Southeast Asia. It is highly revered in Ayurveda for its astringent properties, prominent role in metabolic disorders such as Prameha, and valuable fruit and bark pharmacognosy.

English name

Jamun, Java plum

Therapeutic use

• Jambu (Seed): Madhumeha, Udakameha (obstinate urinary disorders including diabetes mellitus)
• Jambu (Stem bark): Atisara (Diarrhoea), Raktapitta (Bleeding disorders)

Other varieties / Botanical names

• Calyptranthes caryophyllifolia Willd.
• Calyptranthes cumini (L.) Pers.
• Calyptranthes cuminodora Stokes
• Calyptranthes jambolana (Lam.) Willd.
• Calyptranthes jambolifera Stokes
• Calyptranthes oneillii Lundell
• Caryophyllus corticosus Stokes
• Caryophyllus jambos Stokes
• Eugenia brachiata Roxb.
• Eugenia calyptrata Roxb. ex Wight & Arn.
• Eugenia caryophyllifolia Lam.
• Eugenia cumini (L.) Druce
• Eugenia djouat Perrier
• Eugenia fruticosa (DC.) Roxb.
• Eugenia jambolana Lam.
• Eugenia jambolifera Roxb. ex Wight & Arn.
• Eugenia obovata Poir.
• Eugenia obtusifolia Roxb.
• Eugenia odorata Wight
• Eugenia tenuis Duthie
• Eugenia tsoi Merr. & Chun
• Jambolifera chinensis Spreng.
• Jambolifera coromandelica Houtt.
• Jambolifera pedunculata Houtt.
• Myrtus corticosa Spreng.
• Myrtus cumini L.
• Myrtus obovata (Poir.) Spreng.
• Syzygium brachiatum (Roxb.) Miq.
• Syzygium caryophyllifolium (Lam.) DC.
• Syzygium fruticosum DC.
• Syzygium jambolanum (Lam.) DC.
• Syzygium obovatum (Poir.) DC.
• Syzygium obtusifolium (Roxb.) Kostel.
• Syzygium pseudojambolana Miq.
• Syzygium tenue (Duthie) N.P.Balakr

Identification Characters & Botanical Profile

• Mahaskandha – Jambu plant has very big and strong trunk.
• Nilanjanacchada – Leaves of Jambu are bluish in colour.
• Surabhipatra – Leaves have aroma.
• Meghamodini – Fruiting season of Jambu is Varsa ritu.
• Mahaphala – Fruit is relatively big.
• Nilaphala – Fruit of Jambu is bluish purple in colour.
• Maharasa – Fruit is juicy.

In traditional medicine, Jambu is categorized as having an astringent profile that pacifies pitta and kapha, while potentially aggravating vata when used in excess. Its historical indications span metabolic disorders, gastrointestinal flux, and dermal healing.

Types

Bhavaprakasha Nighantu

1. Raja Jambu
2. Ksudra Jambu

Raja Nighantu

1. Jambu
2. Maha Jambu
3. Kaka Jambu
4. Bhumi Jambu

Synonyms in Charak Samhita

Jambu, Mahaphala, Phalendra

Additional Synonyms in Bhavaprakasha Nighantu

• Raja Jambu – Nandi, Surabhi patra, Maha Jambu
• Ksudra Jambu – Sukshma patra, Nadeyi, Jala Jambu

Ayurvedic pharmacological properties

Properties

Sr.no.	Pharmacological criteria	Properties
1	Taste (rasa)	Astringent (kashaya), Sweet (madhura), Sour (amla)
2	Potency (veerya)	Cold (sheeta)
3	Post digestion effect (vipaka)	Pungent (katu)
4	Qualities (guna)	Light (laghu), Rough (ruksha)
5	Actions (karma)	Pacify kapha and pitta, aggravates vata

Reference in Charak Samhita and its actions

Herbs and their activities

Sr.no.	Reference in Charak Samhita	Activity
1	Cha.Sa.Sutra Sthana 2/28	Grahiyavagu (gruel for constipation).
2	Cha.Sa.Sutra Sthana 4/9(28)	Chhardinigrahana (anti emetic) mahakashaya
3	Cha.Sa.Sutra Sthana 4/9(32)	Purishvirajaniya (faecal de – pigmenter) mahakashaya
4	Cha.Sa.Sutra Sthana 4/9(33)	Mootrasangrahaniya (anti – diuretic) mahakashaya
5	Cha.Sa.Sutra Sthana 25/40	Aggravating vata dosha as per agrya sangraha.
6	Cha.Sa.Sutra Sthana 27/140	Phala Varga (class of fruits)
7	Cha.Sa.Sutra Sthana 26/84	Viruddha ahara (as an example of incompatible substance with milk)
8	Cha.Sa.Nidana Sthana 2/4	Nidana of Raktapitta (bleeding disorders)
9	Cha.Sa.Chikitsa Sthana 3/258	As an ingredient of Chandanadhya taila.
10	Cha.Sa.Chikitsa Sthana 14/10	Vibhinna aakriti of arsha (resemblance of different shapes of haemorrhoids)
11	Cha.Sa.Chikitsa Sthana 15/139	As an ingredient of Kiratadhya churna (Pittaja Grahani chiktsa)
12	Cha.Sa.Chikitsa Sthana 19/54	As a yoga dravya in treatment of pittaj atisara.
13	Cha.Sa.Chikitsa Sthana 19/110	As a yoga dravya
14	Cha.Sa.Chikitsa Sthana 20/30	As a pana yoga in Pittaja chhardi.
15	Cha.Sa.Chikitsa Sthana 20/38	As an ingredient of Kaphaja chhardihara yoga.
16	Cha.Sa.Chikitsa Sthana 22/35	For lepa (external application) prayoga
17	Cha.Sa.Chikitsa Sthana 25/113	Used for tvak janana (healing of skin).
18	Cha.Sa.Chikitsa Sthana 26/76	Apathya (unwholesome) in Ashmari (renal stone).
19	Cha.Sa.Chikitsa Sthana 26/272	As an ingredient of Mahaneela taila.
20	Cha.Sa.Chikitsa Sthana 30/79	As an ingredient of Dhatakyadi taila.
21	Cha.Sa.Chikitsa Sthana 30/82	For Yoni prakshalana (vaginal douche).
22	Cha.Sa.Chikitsa Sthana 30/90	As an ingredient of Pushyanuga churna.
23	Cha.Sa.Chikitsa Sthana 30/108	Used in the treatment of Vipluta.
24	Cha.Sa.Chikitsa Sthana 30/122	Used in the treatment of Pichhila yoni (sliminess of genital tract).

Dose

• Jambu (seed): 3–6 gm of the drug in powder form.
• Jambu (stem bark): 10–20 gm of the drug for decoction.

Important Formulations

As per A.P.I.

• Pushyanuga Churna
• Ushirasava

Current availability

Available

• In India – Maharashtra, Uttar Pradesh, Tamil Nadu, Gujarat, Assam
• Out of India –
• Southeast Asia – Malaysia, Thailand, Philippines, Myanmar, Vietnam
• Australia – Particularly in the state of Queensland
• Pacific Islands – Fiji and Hawaii
• South America – Brazil, Colombia, and Venezuela
• Africa – Kenya, Tanzania, and Uganda

Phytochemical Composition

The therapeutic versatility of Syzygium cumini arises from its rich secondary metabolite profile across the seeds, bark, and fruit pulp:

• Anthocyanins & Flavonoids: Abundant cyanidin glycosides, myricetin, quercetin, and kaempferol responsible for antioxidant capacity and deep purple pigmentation .
• Phenolic Acids & Tannins: High levels of ellagic acid, gallic acid, and hydrolyzable tannins contributing to prominent astringent and anti-diarrheal actions.
• Glycosides & Alkaloids: Presence of jamboline and jambosine, particularly in seed matrices, traditionally linked with carbohydrate metabolism regulation .

Pharmacological Activities & Therapeutic Efficacy

Anti-Diabetic and Hypoglycemic Potential

Jambu seeds and pulp are widely recognized for managing metabolic irregularities and hyperglycemia.

• Mechanism: Active constituents inhibit carbohydrate-hydrolyzing enzymes ($\alpha$-amylase and $\alpha$-glucosidase), thereby delaying intestinal glucose absorption and improving insulin sensitivity.
• Scientific Evidence: In vitro and in vivo studies confirm that standardized seed extracts significantly reduce blood glucose levels and suppress oxidative stress markers in diabetic models .

Antioxidant and Free Radical Scavenging Action

The high concentration of polyphenols and anthocyanins provides powerful cellular protection against oxidative damage.

• Mechanism: Neutralizes reactive oxygen species (ROS) and enhances endogenous antioxidant enzyme systems.
• Scientific Evidence: DPPH, ABTS, and FRAP assays demonstrate strong free radical scavenging potential across fruit peel and seed polysaccharide fractions .

Gastroprotective and Anti-Diarrheal Efficacy

The bark and seed extracts exhibit prominent astringent properties that stabilize gastrointestinal mucosa.

• Mechanism: Tannins precipitate mucosal proteins, reducing intestinal secretions and suppressing hypermotility.
• Scientific Evidence: Preclinical trials validate the efficacy of bark decoctions in controlling infectious and non-infectious diarrheal states .

Antimicrobial and Anti-inflammatory Properties

Jambu demonstrates inhibitory activity against several pathogenic bacterial strains and reduces acute inflammatory edema.

• Mechanism: Bioactive flavonoids and essential oils disrupt bacterial cell wall integrity and downregulate pro-inflammatory cytokines.
• Scientific Evidence: Disc diffusion and paw edema assays confirm broad-spectrum antibacterial efficacy against strains like *Staphylococcus aureus* alongside significant anti-inflammatory responses .

Safety, Toxicity, and Dosage

• Toxicity Profile: Syzygium cumini exhibits a strong safety margin in conventional culinary and therapeutic ranges.
• Precautions: Due to its strong astringent and Vata-aggravating tendency, individuals with chronic dryness or specific renal conditions (such as *Ashmari*) should exercise caution.
• Standard Therapeutic Dosage:
  • *Seed Powder:* 3–6 g daily.
  • *Stem Bark Decoction:* 10–20 g.

Summary of Therapeutic Profile

Therapeutic Applications of Syzygium cumini

Indication / Application	Active Biomolecules	Primary Pharmacological Action
Diabetes Mellitus (Madhumeha)	Jamboline, Ellagic acid, Flavonoids	$\alpha$-glucosidase inhibition, Hypoglycemic
Diarrhea & Bleeding Disorders (Atisara / Raktapitta)	Hydrolyzable tannins, Gallic acid	Astringent, Mucosal protectant
Oxidative Stress & Inflammation	Anthocyanins, Myricetin	Free radical scavenger, Anti-inflammatory
Microbial Infections	Essential oils, Phenolic compounds	Antibacterial membrane disruption

References

Herbs