CTAB-Modified Algal Adsorbent

Removes 90.8% gossypol

An efficient, regenerable adsorbent that removes gossypol from cottonseed oil without compromising oil quality.

Yang, Xu · Wang, Wenjing · Wei, Tao · Zhang, Xiao

Food Chemistry 2026

Specifications

Gossypol removal efficiency

{'zh': '90.80', 'en': '90.80'} %

Adsorption capacity

{'zh': '67.55', 'en': '67.55'} mg/g

Removal efficiency after four cycles

{'zh': '50', 'en': '50'} %

Advantages

High removal efficiency

Under optimal conditions, gossypol removal efficiency reaches 90.80% with an adsorption capacity of 67.55 mg/g, far exceeding raw Chlorella pyrenoidosa.

Reusable

The removal efficiency remains over 50% after four cycles, showing good repeatability and reducing operational costs.

Low toxicity

The treated cottonseed oil exhibits low cytotoxicity, making it safe for food and feed applications.

Applications

• Edible oil refining：Efficiently removes gossypol during cottonseed oil refining without compromising oil quality.
• Feed detoxification：Reduces gossypol in cottonseed meal to improve feed safety.
• Food contact materials：Treated oil has low cytotoxicity, meeting food contact safety requirements.
• Agricultural product processing：Provides a mild detoxification method for cottonseed processing.