ลูกยอ (Luk Yaw) – Noni
Family: Rubiaceae
Morinda citrifolia, known in Thai as ลูกยอ (Luk Yaw), is a small evergreen tree native to Southeast Asia and the Pacific islands. It is easily recognized by its shiny dark-green leaves and distinctive fruit that turns translucent white when ripe. Despite its strong odor, the fruit is one of the most respected traditional remedies in Thailand.
Botanical Characteristics
The plant grows 3–6 meters tall, with opposite oval leaves that are smooth, glossy, and deeply veined. Its white tubular flowers form into compound fruits, which ripen to a soft, lumpy texture. The fruit emits a pungent smell but contains powerful bioactive compounds, including proxeronine and scopoletin.
Use in Thai Traditional Medicine
ลูกยอ (Luk Yaw) is valued as a tonic herb for improving blood circulation, aiding digestion, and supporting the immune system. The fruit is often fermented or boiled to extract its juice, used as a liver cleanser and general rejuvenating drink. The leaves are applied externally to reduce inflammation, while the roots are used to treat joint pain and skin infections.
Modern Applications
Modern studies highlight Noni’s antioxidant, anti-inflammatory, and immune-boosting properties. It has become popular in natural health products and detox beverages worldwide. Thai herbalists continue to use it as a gentle but effective internal cleanser and energy restorer.
Cultivation Notes
Morinda citrifolia grows well in tropical lowlands, thriving in full sunlight and moist soil. It can tolerate saline conditions, making it ideal for coastal regions like Phuket. Regular pruning encourages healthy new growth and fruiting.
Historical Context
Noni has been revered across Asia and the Pacific for over 2,000 years. In Thai culture, it is both a medicinal and symbolic plant — representing endurance and natural balance. Ancient healers used it as a restorative elixir, and it remains one of the pillars of herbal wellness today.
Disclaimer: This information is provided for educational and historical purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional before using any herbal preparation.
