Optimization of Extraction Technology and Determination of Content of Total Phenols of Leaves in Acanthopanax giraldii Harms

[Objectives] To determine the optimum extraction technology for total phenols of leaves in Acanthopanax giraldii Harms.[Methods]The single factor test and ortho...     

Advances in Researches of Extraction Processes of Total Saponins of Pnanx Notoginseng

Traditional extraction methods of total saponins of Panax notoginseng include cold soaking method,water decoction method,alcohol reflux method,percolation metho...     

Plant Yield,Antioxidant Capacity and Essential Oil Quality of Satureja Mutica Supplied with Cattle Manure and Wheat Straw in Different Plant Densities

ABSTRACT

Satureja mutica is a medicinally important plant, which may be affected by organic fertilizers and cultivation methods. To investigate the effect of cattle manure (30 ton/ha) and wheat straw (10 ton/ha) as organic fertilizers and plant density (80000, 40000, and 26666 plan ha^?1), an experiment was carried out as split plot with three replications during 2017 and 2018 on plant yield, total phenol content (TPC), total flavonoid content (TFC), essential oil (EO) yield and composition of S. mutica in the rainfed condition. The results showed that the highest fresh weight yield (FWY) and dry weight yield (DWY) were observed in high plant density in second year. TPC in interaction of second year and cattle manure was higher than others. The greatest TFC was observed in plants supplied with interaction of second year and wheat straw. EO content and yield in plants treated with the interaction of second year and high plant density were higher compared to those in other plants. The GC/MS analysis showed that the main EO components were thymol, carvacrol, γ-terpinene and p-Cymene, representing different concentrations by using the organic fertilizers and plant densities. In summary, the use of cattle manure and high plant densities can result in higher plant production.     

利用三乙醇胺掩蔽作用原子吸收法测定土壤全钙

空气──乙炔火焰原子吸收测土壤全钙，由于干扰因子多，准确度欠佳。土壤经硝酸──氢氟酸──高氯酸消煮后，加入氯化　和三乙醇胺，空气─乙炔火焰原子吸收法测定，准确度有较大提高，优于加氯化　、氯化　和氯化钠两种方法。     

Study on Colorimetric Method and Content Determination of Total Phenol in Homemade Plum Wine

[Objectives] To study on colorimetric method and content determination of total phenol in homemade plum wine. [Methods]The optimal determination condition of to...