Under the Thai Jujube Root: Discovering "Triterpenes" - Nature's Future Medicine

The hidden medicinal potential of Ziziphus mauritiana roots

When people think of "jujube," they imagine a sweet-sour fruit. But did you know that deep beneath the soil, this traditional herb hides a group of "triterpenes" with high medical potential?

Research from Srinakharinwirot University reveals that Thai jujube roots (Ziziphus mauritiana) contain unique chemical treasures! 1 2

Triterpenes: Nature's Molecular Warriors

Triterpenes are large natural compounds composed of 6 isoprene units (C30H48) that plants use as defensive shields. 3 They come in diverse structures:

Lupane

Common in plants like birch trees

Ceanothane

Rare structure first found in Ceanothus plants

Oleanane

Popular in cancer research studies

Excitingly, Thai jujube roots contain 7 types of triterpenes from both groups, a combination never before reported in this plant! 1 2

Key Experiment: Decoding the Root's Secrets

The research team from Srinakharinwirot University, led by Dr. Panomwan Pansrita and Dr. Sunit Suksamrarn, used advanced techniques to isolate these compounds:

Sample Collection

Dried Thai jujube roots were ground into powder

Solvent Extraction

Used ethanol and hexane for sequential extraction

Column Chromatography

Silica gel was used as the stationary phase

Structural Analysis

NMR and Mass Spectrometry for 3D molecular imaging

Remarkable Findings

Compound Type New Discovery
Zizyberenalic acid Ceanothane
Ceanothic acid Ceanothane -
Epiceanothic acid Ceanothane
24-Hydroxyceanothic acid Ceanothane
Lupeol Lupane -
Betulin Lupane -
Betulinic acid Lupane -

This marks the first report of ceanothane-type triterpenes in jujube! 1 7 Particularly significant is "Epiceanothic acid" with its unique three-dimensional structure resulting from atypical atomic arrangement.

Why is Ceanothane Special?

Ceanothane is a rare open-ring triterpene (3,4-seco) found in limited natural sources. Research on Thai Gardenia species shows these compounds inhibit cancer angiogenesis (Anti-angiogenic) 9 , aligning with the mechanism of Betulinic acid from the lupane group in jujube, which has been reported to:

  • Trigger apoptosis (programmed cancer cell death)
  • Inhibit HIV-1 protease enzyme
Extraction Method Comparison
Method Advantages Disadvantages
Maceration Simple, low cost Time-consuming (24-72 hours)
Soxhlet Thorough extraction High temperature risk
Ultrasound (UAE) 4x faster* Requires parameter optimization
*Reference: Triterpene extraction from mushrooms 6

The Future: From Roots to Medicine

This discovery opens doors to:

Targeted Cancer Drugs

Development of precision medicine targeting specific cancer cells

Semi-synthetic Drugs

Production of precursor compounds for modified pharmaceuticals

Medicinal Cultivation

Evaluation of Thai jujube varieties for medical applications

Traditional wisdom that uses "jujube roots for bone health and anti-inflammation" now has molecular evidence! The research team indicates that the next steps involve bioavailability studies and structural optimization for enhanced efficacy. 8

"Nature has written healing codes in traditional plants for centuries... Science is the key to decipher them."

Research Team, Srinakharinwirot University

References