No. 63 Stabilization of Pungent Principle of Daikon (White Radish) by Cyclodextrin ②

Background

White radish having pungent principle is preferred as a condiment in Japan.

MTBI, a pungent principle of white radish has some beneficial functions such as antimicrobial effect. However, MTBI is very unstable. Rapid degradation of MTBI causes unfavorable quality problems for processed foods containing white radish like loss of pungent taste, color change and sulfurous smell.

Our company has emerging technologies in functional food and personal care fields which raises the water solubility, stability and bioavailability of functional ingredients by using the inclusion property of cyclodextrin (CD).

We previously reported about stabilization of MTBI by complexation with CD (* please refer to the newest result of research "62th" of our homepage for details.).

→ In this study, stabilization of not MTBI as a pure form but MTBI in grated white radish by complexation with CD was explored.

Pungent principle of Daikon

Benefits
Antimicrobial effect / Antioxidant effect / Anticancer effect / Anti-atherosclerosis effect

Ref.
Biosci. Biotech. Biochem., 1997, 61, 2109-2112.
J. Agric. Food Chem., 2008, 56, 875-883.
International Immunopharmacology, 2006, 6, 854-861.

Experiment 1. Effect of CD on stability of MTBI in grated white radish.

Result Fig. 1

Experiment 2. Effect of α-CD on stability of MTBI in grated white radish during freeze drying.

Result Fig. 2. Relative amount of MTBI in grated white radish after freeze drying.

Instant grated white radish

Freeze dried grated white radish was soaked with water to be restored to original state.

Conclusions

• Stabilities of MTBI in grated white radish was enhanced by complexation with α-CD.
• Preparation of freeze dried grated white radish containing high amount of MTBI was succeeded by α-CD inclusion.

→ α-CD could be a potent stabilizer of MTBI of white radish for the developments of new processed foods containing white radish.