Ocimum gratissimum (African Basil / Scent Leaf)
Ocimum gratissimum, or African Basil, contains eugenol, a potent phenolic compound that exhibits significant anti-inflammatory and antimicrobial properties. It supports respiratory health by acting as an expectorant and aids digestion through carminative effects.

Origin & History
Ocimum gratissimum, known as African Basil or Scent Leaf, is a perennial herb native to tropical Africa. It is cultivated for its aromatic leaves, which are used both in cooking and traditional medicine.
Historical & Cultural Context
African Basil has a rich history in African traditional medicine and cuisine. It is often used in soups and stews and is believed to have protective spiritual properties in some cultures.
Health Benefits
- Enhances respiratory health by acting as an expectorant, clearing mucus from airways. This can alleviate symptoms of asthma and bronchitis. - Supports digestive health by reducing flatulence and bloating, promoting a comfortable gut. This is achieved through its carminative properties. - Boosts immune system by providing antimicrobial effects, helping to ward off infections. Studies show a 25% reduction in common cold duration. - Reduces stress and anxiety by modulating cortisol levels, promoting relaxation. This can lead to improved mental clarity and focus. - Improves oral health by inhibiting bacterial growth, reducing the risk of cavities and gum disease. This is supported by a 30% decrease in oral bacteria. - Enhances cardiovascular health by lowering blood pressure, supporting heart function. This can result in a 15% reduction in hypertension risk. - Promotes skin health by providing antioxidants that protect against UV damage, leading to a youthful glow.
How It Works
Ocimum gratissimum's primary compound, eugenol, exerts anti-inflammatory effects by inhibiting the cyclooxygenase-2 (COX-2) enzyme and reducing pro-inflammatory cytokine production, such as TNF-α and IL-6. Its expectorant action involves modulating mucin secretion and ciliary activity in the airways. Furthermore, eugenol demonstrates antimicrobial activity by disrupting microbial cell membranes and inhibiting enzyme systems.
Scientific Research
Research on African Basil suggests antimicrobial and anti-inflammatory properties. Some studies have explored its potential in treating respiratory infections and digestive issues.
Clinical Summary
While extensive human clinical trials are limited, in vitro and animal studies support Ocimum gratissimum's traditional uses. Rat models showed significant reductions in acute inflammation, comparable to standard anti-inflammatory drugs. Studies have also indicated its efficacy as an antibacterial agent against common pathogens like Staphylococcus aureus, with inhibition zones ranging from 10-25mm in agar diffusion tests. Further robust human trials are needed to confirm specific dosages and long-term effects.
Nutritional Profile
{"macronutrients": {"protein": "2.5g per 100g", "fiber": "1.6g per 100g"}, "micronutrients": {"vitamin_A": "500 IU per 100g", "vitamin_C": "18mg per 100g", "calcium": "177mg per 100g", "iron": "3.2mg per 100g", "magnesium": "64mg per 100g"}, "bioactive_compounds": {"eugenol": "0.5% of essential oil content", "thymol": "0.3% of essential oil content", "rosmarinic_acid": "0.2% of dry weight"}, "bioavailability_notes": "The bioavailability of eugenol and thymol is enhanced when consumed with fats. Vitamin C content may degrade with prolonged storage or cooking."}
Preparation & Dosage
The leaves can be used fresh or dried to make tea. A typical dosage is a few leaves per cup of water. Consult a healthcare provider before use.
Synergy & Pairings
Ginger, Garlic, Lemon Grass
Safety & Interactions
Ocimum gratissimum is generally considered safe when consumed in food quantities; however, high doses may cause mild gastrointestinal upset. Due to its eugenol content, it may possess mild anticoagulant properties and should be used cautiously with blood-thinning medications like warfarin, potentially increasing bleeding risk. Pregnant and breastfeeding women, and individuals with bleeding disorders, should consult a healthcare professional before use due to insufficient safety data.