Studies on Processing Technique of Garlic (Allium sativum. Linn.)
S. L. Hwang, C. C. Tsai
1. The methods of solvent extraction and vacuum concentration were used in this trail to extract garlic oil, and allicin was the major component of the extracts.
2. In solvent extraction, where 0.44% of garlic oil was obtained from dry garlic powder, and 0.47% of garlic oil was obtained through Soxhlet method. Garlic oil of 0.17% was obtained directly from fresh garlic in solvent extraction. But in vacuum concentration method, the extraction proportion 0.13~0.18% was obtained from fresh garlic.
The higher extraction proportion was obtained from solvent extraction, but the Ethyl ether was poisonous and more expensive than other solvents. It is necessary to try n-hexane in garlic oil extraction in future trial. The extraction was lower but the flavor was better in vacuum concentration method. We further hope to be fulfilled with more modern equipment to obtain the higher extraction effect and present it to producer.