Related Experiment Video
Updated: Mar 2, 2026
06:29
A Method to Preserve Wetland Roots and Rhizospheres for Elemental Imaging
Published on: February 15, 2021
4.0K
Study on the Removal of Cadmium in Rice Using Microbial Fermentation Method
Ling Zhang1,2, Qunying Lei1,2, Yuliang Cheng1,2
1State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, 214122, Jiangsu Province, China.
Journal of Food Science
|May 12, 2017
Summary
Microbial fermentation effectively removes 80.84% of cadmium from contaminated rice. This process optimizes rice quality by altering starch properties and reducing protein content, making contaminated rice usable.
Area of Science:
- Food Science
- Biotechnology
- Environmental Science
Background:
- Cadmium contamination in rice poses a significant food safety risk.
- Developing effective methods for cadmium removal is crucial for utilizing contaminated rice resources.
Purpose of the Study:
- To investigate microbial fermentation as a method for cadmium removal from rice.
- To optimize fermentation parameters for maximum cadmium reduction.
- To assess the impact of fermentation on the physicochemical properties and quality of rice.
Main Methods:
- Fermentation process optimization by varying time, temperature, liquid ratio, inoculant levels, and washing frequency.
- Physicochemical analysis of raw and fermented rice, including pasting properties and structural analysis.
- Quantification of cadmium removal efficiency.
Main Results:
- Optimal fermentation conditions achieved an 80.84% cadmium removal rate.
- Fermentation parameters: 0.1% inoculant, 1:1 liquid ratio, 60 hours at 37 °C, followed by 4 water washes.
- Fermented rice exhibited lower pasting temperatures and increased endothermic enthalpy, indicating protein reduction and starch structural changes without new chemical bond formation.
Conclusions:
- Microbial fermentation is a viable and effective method for reducing cadmium levels in contaminated rice.
- Fermentation improves rice quality by altering starch characteristics and reducing protein content.
- This approach offers a sustainable solution for managing cadmium-contaminated rice, enhancing food safety and resource utilization.
