Some simple mining machinery such as swapes (counterweighted bailberbuckets) and pulleys, which had been made before the Qin Dymasty, was unearthed among the ruins of an ancient copper mine in Tong Ling of Jiangxi Province.

Processing technology of balsam pear and Platycodon grandiflorum healthy compound beverage;

Study on the Spermicidal Effect of the Extracted Fluid of Platycodon Grandiflorum In Vitro;

Principal Component and Cluster Analysis of Platycodon grandiflorum Germplasm;

Processing technology of Platycodon root health pichle of low salt;

With Platycodon root as experiment material, on the base of single factor experiments (extraction time, extraction temperature and so on), then through the experimental design of response surface methology, the conditions of extraction are studied.

With Platycodon root as experiment material and Platycodon extract,sucrose,citric acid and β-cycloheptaamylose as experiment factors,on the base of Response Surface Methodology Analysis,researches on optimal prescription of Platycodon health protection beverage were conducted.

Comparative research on two fermentation methods of orange wine;

Study on the Technology of Orange Beverage Made by Lactic Acid Fermentation;

Experimental study on zymotechnics of orange vinegar;