BIOTEC researchers won medals at the 41st International Exhibition of Inventions Geneva

ENZbleach and TB-DNAsensor kits won Gold Medal in Environmental Protection field and 2 Silver Medals in Health field, respectively, at the 41st International Exhibition of Inventions Geneva, held from 12-14 April 2013 in Switzerland.

In a conventional chemical bleaching process, a large scale of chemicals is used, releasing pollution into the environment and causing numerous harmful disturbances to ecosystem. The new biobleaching process using enzymes leads to a significant reduction of chlorine and chlorine-based compounds. The xylanase attacks hemicellulose and alters the interface between the cellulose and lignin, thereby facilitates the chemical extraction of lignin from pulp. ENZbleach, an alkaline-tolerant enzyme, has been developed and optimized for pulp biobleaching without the need of pH adjustment of the pulp, which will make the large-scale operations more simple and cost effective. Moreover, ENZbleach is cellulase-free, thus does not destroy the structure of cellulose and diminish pulp quality. 

ENZbleach is a work of Bioresources Technology Unit, with the following research staff: Dr. Thidarat Nimchua, Dr. Verawat Champreda, Dr. Lily Eurwilaichitr, Mr. Phitsanu Pinmanee and Mr. Nakul Rattanaphan.


Two types of TB-DNAsensor kit for diagnosis of Mycobacterium tuberculosis (MTB) were developed by Faculty of Medicine, Srinakharinwirot University and Innovative Learning Center, Srinakharinwirot University in collaboration with Ms. Wansika Kiatpathomchai and a colleague at the Center of Excellence for Shrimp Molecular Biology and Biotechnology, BIOTEC.  

TB-DNAsensor kit I is a chromatographic on membrane for rapid, sensitive and specific MTB detection via amplification of target nucleotide sequences under inexpensive isothermal conditions which interpretation of results within 1.5 h. TB-DNAsensor kit II is a high sensitivity, specificity, rapid, low cost and convenience test for the detection of MTB from direct specimen such as sputum. The color change results could be detected from 45 min to 1.5 h after reaction between gold nanoparticle and specific target DNA. Both kits could be applied in laboratories and epidemiological surveys of MTB. 


The International Exhibition of Inventions Geneva was organized under the patronage of the Swiss Federal Government of the State, the City of Geneva and the World Intellectual Property Organization (WIPO). More than 1,000 inventions from public and private sectors from 45 countries were exhibited at this year’s exhibition. The National Research Council of Thailand (NRCT) selected a total of 37 inventions from 14 organizations in Thailand to enter in the exhibition, resulting in the winning of 3 Gold Medals with the Congratulations of the Jury, 11 Gold Medals, 12 Silver Medals and 9 Bronze Medals as well as Special Prize Awards from Taiwan, Republic of Korea, Islamic Republic of Iran, Malaysia and International Federation of Inventors' Associations (IFIA).

Posted on 25 April 2013