ultrasound assisted extraction of peppers

Product Description

Capsaicin or capsaicinoids is the main spicy component in chili peppers, with various physiological activities such as pain relief, anti-inflammatory effects, and promotion of fat metabolism.

Traditional extraction methods, such as ethanol reflux, suffer from high energy consumption and low efficiency. However, ultrasound assisted extraction or ultrasound assisted extraction of capsaicinoids from peppers  technology utilizes cavitation effect to accelerate cell rupture and component dissolution, which has the advantages of high extraction efficiency, short time, and low energy consumption. It has been widely studied and applied.

This ultrasound assisted extraction of capsaicinoids from peppers technology destroys plant cell walls through mechanical vibration, cavitation, and thermal effects of ultrasound, allowing capsaicin to be released into the solvent faster, thereby improving extraction rates and shortening process cycles. Different studies optimize fresh or dried pepper raw materials using different solvent and parameter combinations

Process flow and key parameters of ultrasound assisted extraction of capsaicinoids from peppers   
Raw material preparation
Select mature red chili peppers, wash them, remove the stems, dry them, crush and sieve them (usually 60-80 mesh).
Solvent selection
Common solvents include ethanol, methanol, acetone, tetrahydrofuran, and their mixtures. Ethanol is more suitable for food grade extraction due to its safety and environmental friendliness; Methanol: Tetrahydrofuran (1:1) has shown higher extraction efficiency in some studies.
Ultrasonic extraction process
Mix chili powder with solvent in proportion and place it in an ultrasonic device for ultrasonic treatment at a set temperature.
After extraction, filter and collect the filtrate; Some processes require repeated extraction 1-3 times to improve yield.
subsequent processing
The filtrate is distilled to recover the solvent and obtain a crude extract;
Further purification can be achieved through column chromatography to obtain high-purity capsaicin products

suggestion
If used for industrial production, it is recommended to combine response surface methodology or orthogonal experiments to optimize the process of local raw materials, with a focus on the four main influencing factors of material to liquid ratio, solvent concentration, ultrasound time, and temperature. Prioritize the use of edible grade ethanol as a solvent to ensure product safety and compliance

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