# Ajamoda (Trachyspermum roxburghianum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/ajamoda
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-19
**Evidence Score:** 4 / 10
**Category:** Ayurveda
**Also Known As:** Trachyspermum roxburghianum, Ajmoda, Brahmakoshi, Omam, Ashamtagam, Vamu, Naranji vamu, Wild celery seed

## Overview

Ajamoda (Trachyspermum roxburghianum) is an Ayurvedic herb containing thymol and carvacrol as primary bioactive compounds. These phenolic compounds provide [antimicrobial](/ingredients/condition/immune-support) and antioxidant effects by disrupting bacterial cell membranes and neutralizing [free radical](/ingredients/condition/antioxidant)s.

## Health Benefits

• [Antimicrobial](/ingredients/condition/immune-support) activity: Essential oil showed efficacy against Staphylococcus aureus and Bacillus subtilis (MIC 2 μL/mL), Salmonella typhi (MIC 4 μL/mL), and Candida albicans (MIC 16 μL/mL) in vitro studies
• [Antioxidant](/ingredients/condition/antioxidant) properties: Essential oil demonstrated radical scavenging activity with IC50 values of 94.41 μg/mL (DPPH) and 91.28 μg/mL (ABTS) in laboratory tests
• Digestive support: Traditional use as carminative and Vata-pacifying agent for gas and motility issues, though human clinical evidence lacking
• [Anti-inflammatory](/ingredients/condition/inflammation) potential: Contains carvacrol which inhibits COX-2 up to 50% in vitro, and thymol which inhibits lipoxygenase pathways
• Wound healing: Essential oil showed wound healing potential in preclinical models, traditionally used for chronic wounds/discharges

## Mechanism of Action

Ajamoda's essential oil components thymol and carvacrol disrupt bacterial cell membrane integrity, leading to cell death in pathogenic microorganisms. These phenolic compounds also act as antioxidants by donating hydrogen atoms to [free radical](/ingredients/condition/antioxidant)s, breaking the oxidative chain reaction. The [antimicrobial](/ingredients/condition/immune-support) activity occurs through interference with bacterial respiratory enzymes and membrane-bound ATPase activity.

## Clinical Summary

In vitro studies demonstrate ajamoda essential oil's [antimicrobial](/ingredients/condition/immune-support) efficacy with minimum inhibitory concentrations of 2 μL/mL against Staphylococcus aureus and Bacillus subtilis, 4 μL/mL against Salmonella typhi, and 16 μL/mL against Candida albicans. [Antioxidant](/ingredients/condition/antioxidant) studies show radical scavenging activity, though complete IC50 values are not fully documented. Current evidence is limited to laboratory studies with no human clinical trials available. The antimicrobial potency varies significantly between bacterial and fungal species tested.

## Nutritional Profile

Ajamoda (Trachyspermum roxburghianum) seeds contain approximately 20-25% fixed oils (fatty acids including petroselinic acid, linoleic acid, and oleic acid as primary components), 2-4% essential oil yield dominated by thymol (30-50%), p-cymene (20-35%), and γ-terpinene (10-20%) as key bioactive volatiles. Crude protein content is approximately 15-18% dry weight, crude fiber 10-15%, and carbohydrates 35-45%. Mineral profile includes calcium (600-800 mg/100g), phosphorus (400-500 mg/100g), iron (15-25 mg/100g), and potassium (1000-1200 mg/100g) on a dry weight basis. Vitamin content includes niacin (approximately 3-4 mg/100g) and trace amounts of riboflavin and thiamine. Key bioactive compounds include flavonoids (quercetin, kaempferol glycosides at approximately 50-150 mg/100g total), coumarins (isoimperatorin, bergapten), and phenolic acids (rosmarinic acid, caffeic acid derivatives at 200-400 mg GAE/100g total polyphenols). The thymol content in essential oil is the primary [antimicrobial](/ingredients/condition/immune-support) constituent, with bioavailability enhanced by co-ingestion with lipids due to its lipophilic nature. Fixed oil bioavailability is moderate; whole seed consumption reduces extraction efficiency compared to powdered or crushed preparations used in traditional Ayurvedic formulations.

## Dosage & Preparation

Traditional Ayurvedic dosages include 1-3 g powder or 10-20 mL arka (distillate) twice daily, though no human clinical trials have established optimal dosing. No standardization for active compounds like thymol has been specified in studies. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Safety data for ajamoda supplements is limited, with no established adverse effects profile in humans. Essential oil concentrations may cause gastrointestinal irritation if taken in high doses without proper dilution. Potential interactions with anticoagulant medications exist due to phenolic compounds affecting platelet function. Pregnancy and breastfeeding safety has not been established, so use should be avoided during these periods.

## Scientific Research

No human clinical trials, RCTs, or meta-analyses were identified for Trachyspermum roxburghianum. Available evidence is limited to in vitro studies showing [antimicrobial](/ingredients/condition/immune-support), [antioxidant](/ingredients/condition/antioxidant), and [anti-inflammatory](/ingredients/condition/inflammation) activities of the essential oil, with no cytotoxicity observed on Vero cells.

## Historical & Cultural Context

In Ayurveda, Ajamoda has been used for millennia as a carminative, [anti-inflammatory](/ingredients/condition/inflammation), digestive aid, mild diuretic, and for respiratory relief. Known by regional names including Sanskrit: Ajmoda/Brahmakoshi; Tamil: Omam/Ashamtagam; and Telugu: Vamu/Naranji vamu, it has been traditionally employed for gut infections, breath issues, and chronic wounds.

## Synergistic Combinations

Ginger, Fennel, Cumin, Black Pepper, Turmeric

## Frequently Asked Questions

### What is the active compound in ajamoda?

Thymol and carvacrol are the primary active compounds in ajamoda essential oil. These phenolic compounds provide the herb's antimicrobial and antioxidant properties through membrane disruption and free radical scavenging mechanisms.

### How effective is ajamoda against bacteria?

Ajamoda essential oil shows strong antibacterial activity with MIC values of 2 μL/mL against Staphylococcus aureus and Bacillus subtilis, and 4 μL/mL against Salmonella typhi. The oil is less effective against fungi, requiring 16 μL/mL to inhibit Candida albicans growth.

### What is the difference between ajamoda and ajwain?

Ajamoda (Trachyspermum roxburghianum) and ajwain (Trachyspermum ammi) are different species in the same genus. While both contain thymol, they have distinct phytochemical profiles and traditional uses in Ayurvedic medicine.

### Can ajamoda be taken daily as a supplement?

Daily ajamoda supplementation lacks safety data from human studies. Without established dosing guidelines and safety profiles, regular use should be supervised by healthcare practitioners familiar with Ayurvedic herbs.

### Does ajamoda have antioxidant properties?

Yes, ajamoda essential oil demonstrates antioxidant activity through free radical scavenging mechanisms. The phenolic compounds thymol and carvacrol contribute to this antioxidant capacity, though specific IC50 values require further research documentation.

### Is ajamoda safe to take during pregnancy and breastfeeding?

While ajamoda has traditional use in Ayurvedic medicine, there is limited clinical research on its safety during pregnancy and breastfeeding. As with most herbal supplements, it is advisable to consult with a healthcare provider before use during these periods to avoid potential risks. Pregnant and nursing women should err on the side of caution until more robust safety data becomes available.

### Does ajamoda interact with antibiotics or other common medications?

Due to ajamoda's antimicrobial properties demonstrated against common pathogens like Staphylococcus aureus and Salmonella typhi, there is theoretical potential for interactions with antibiotic medications. No clinical studies have specifically evaluated ajamoda's interactions with conventional drugs, so it is important to inform your healthcare provider if you are taking prescription medications before adding ajamoda supplementation. This is particularly critical if you are on antibiotics or immunosuppressant medications.

### What does the current clinical research show about ajamoda's effectiveness in humans?

Most evidence for ajamoda comes from in vitro laboratory studies demonstrating antimicrobial activity and antioxidant properties, such as its efficacy against Candida albicans and radical scavenging activity with IC50 values of 91-94 μg/mL. However, clinical trials in human subjects are limited, meaning the gap between laboratory results and real-world effectiveness remains unclear. More human-based research is needed to confirm whether the promising in vitro findings translate to meaningful health benefits in supplement form.

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