Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.
报道了用水蒸汽蒸馏萃取法提取卷柏中挥发性物质，测得卷柏挥发油的含量为2.85%。
Walnut oil obtained by three extraction methods was researched on the yield, physicochemical properties, content of total flavone and unsaturated fatty acid.
研究了三种提取方法对核桃油得率、理化性能、总黄酮含量、不饱和脂肪酸含量的影响。
Objective: To establish the relationship equation of yield and extraction time of plant volatile oil.
目的：建立植物挥发油提取量与提取时间关系式。
Considering factors of extraction efficiency, oil yield and environmental protection, the ultrasonic extraction and the supercritical carbon dioxide fluid extraction are the appropriate methods.
从提取效率、油的得率及绿色环保几个因素综合考虑，超声波提取法和超临界二氧化碳萃取法是比较理想的两种提取方法。
Therefore, as for the many shortcomings of furfural refined, it is carried out by adding extraction addition to enhance its refining yield and the quality of refined oil.
因此，针对糠醛精制的诸多缺点，开展了糠醛中加入精制助剂，提高其精制收率以及精制油质量的研究。
The methods of press and solvent extraction were used to extract oil from soy sauce residue and their oil yield results were compared.
采用压榨法和浸出法从酱油渣中提取油脂，比较其提油效果。
By broking the wall of powdered oils with ultrasonic, the oil extraction efficiency yield was 65%, which met the need of determining POV.
超声波破壁法提油其提油率可达65%左右，可满足测定要求。
Objective To study the composition and yield of the volatile oil of radix kadsurae coccineae by 2 different extraction methods.
目的研究黑老虎药材用2 种不同提取方法所得挥发油成分及收率。
The effects of extraction time and solvent volume on the seed oil yield were studied.
并讨论了提取时间和提取溶剂体积对出油率的影响。
The effects of extraction time and solvent volume on the seed oil yield were studied.
并讨论了提取时间和提取溶剂体积对出油率的影响。
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