How to extract allicin from garlic?

How Allicin Is Extracted from Garlic

Allicin, the powerful compound responsible for garlic’s strong smell and many health benefits, isn’t actually present in fresh garlic cloves. Instead, it’s formed when garlic is crushed or processed, triggering a reaction between the enzyme alliinase and the amino acid alliin. But if you’re looking to extract allicin more efficiently—especially for supplements or medicinal use—the process goes beyond simple crushing.

The extraction begins with selecting high-quality, peeled garlic that’s thoroughly cleaned. This garlic is then meshed—broken down into a fine paste—to kickstart the chemical transformation. Some methods include a brief baking or deodorizing step, which can help stabilize the final product and reduce odor without significantly compromising allicin yield.

Next, the garlic is crushed further to maximize surface area and promote the conversion of alliin into allicin. At this stage, a more advanced technique involves high-pressure water and oil mixed-phase digestion. This method enhances the separation of allicin from the plant matrix by improving solubility and protecting the compound from rapid degradation, as allicin is highly unstable and breaks down quickly.

After digestion, the mixture is extruded—essentially pressed—to separate the liquid extract from the solid residue. This liquid contains a concentrated form of allicin, ready for further purification or stabilization.

It's worth noting that commercial extraction often adds stabilizers or uses low-temperature techniques to preserve allicin’s potency. While home-prepared garlic paste offers health benefits, lab-based methods ensure higher, more consistent concentrations for therapeutic use.