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Related Experiment Videos

Cholesterol removal from homogenized milk with beta-cyclodextrin.

D K Lee1, J Ahn, H S Kwak

  • 1Department of Food Science and Technology, Sejong University, Seoul, Korea.

Journal of Dairy Science
|November 27, 1999
PubMed
Summary

Optimizing beta-cyclodextrin use in milk significantly reduces cholesterol by up to 95.3%. Key factors include 1.5% beta-cyclodextrin concentration, 10°C mixing temperature, and 166xg centrifugation for effective cholesterol removal.

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Area of Science:

  • Food Science
  • Dairy Technology
  • Analytical Chemistry

Background:

  • Milk cholesterol reduction is desirable for health-conscious consumers.
  • Beta-cyclodextrin is a potential agent for selective cholesterol removal.
  • Optimizing processing parameters is crucial for efficient cholesterol sequestration.

Purpose of the Study:

  • To determine the optimal conditions for cholesterol reduction in homogenized milk using beta-cyclodextrin.
  • To evaluate the impact of beta-cyclodextrin concentration, mixing temperature, mixing time, centrifugal force, and centrifugation time on cholesterol removal efficiency.

Main Methods:

  • Homogenized milk (3.6% fat) was treated with varying concentrations of beta-cyclodextrin (0.5-1.5%).
  • Experiments were conducted across a range of mixing temperatures (10°C), mixing times (5-20 min), centrifugal forces (up to 166xg), and centrifugation times (5-20 min).

Related Experiment Videos

  • Cholesterol removal percentage was quantified under different process conditions.

    • Main Results:

    • Beta-cyclodextrin concentrations from 0.5% to 1.5% achieved 92.2% to 95.3% cholesterol removal.
    • Optimal results were obtained at 1.5% beta-cyclodextrin, 10°C mixing temperature, and 10-minute mixing time.
    • Cholesterol removal increased with centrifugal forces up to 166xg (95.9%), with longer centrifugation times showing no significant effect.

    Conclusions:

    • The optimal conditions for significant cholesterol reduction in milk involve 1.5% beta-cyclodextrin, a 10°C mixing temperature, 10-minute mixing time, and centrifugation at 166xg for 10 minutes.
    • This optimized process demonstrates high efficiency in removing cholesterol from homogenized milk.
    • The findings provide a practical framework for industrial application of beta-cyclodextrin for cholesterol reduction in dairy products.