Impact of different extraction methods on the quality of Dipteryx alata extracts

This study aimed to impact of different extraction methods on the quality of Dipteryx alata Vogel, Fabaceae, extracts from fruits. The major compounds found were the lipids 38.9% (w/w) and proteins 26.20% (w/w). The residual moisture was 7.20% (w/w), total fiber 14.50% (w/w), minerals 4.10% (w/w) and carbohydrate 9.10 % (w/w). The species studied has great potential in producing oil, but the content and type of fatty acids obtained is dependent on the method of extraction. The Blingh & Dyer method was more selective for unsaturated fatty acids and Shoxlet method was more selective for saturated fatty acids. The tannin extraction by ultrasound (33.70 % w/w) was 13.90% more efficient than extraction by decoction (29 % w/w).

Optimization of the Water Extractive Process for Guben Zhike Electuary with Uniform Design / 中国中医药信息杂志

Objective To optimize the water extractive process of Guben Zhike Electuary. Methods To arrange experiments with uniform design for optimizing suitable extractive proces, with the content of polysaccharide and astragaloside Ⅳ as the detecting indexes, inspecting the extacting times, lasting time and additional water which would affect the extraction rate of the two effective components. Result The best process was that water as extraction solvent, extracted for three times with two hours each time, and the amount of water added up to nine times of herbs. Conclusion The best process could extract most of the effective components out of the herbs, which is scientific.