Dr. Mahlberg obtained one of only two Drug Enforcement Administration (DEA) Schedule 1 research licenses to pursue studies on Cannabis in the United States spanning a period of 33 years from 1970-2003. During that time he accumulated one of the most extensive seed banks in the world with over 200 strains (varieties) of Cannabis from worldwide sources including landrace varieties, which were cultivated in secure greenhouses. The studies are available in over 30 scientific publications on Cannabis.
Dr. Mahlberg is a Professor Emeritus of Indiana University and was an active professor in the Botany department of the University until 1994 after which he continued his research on Cannabis and maintained his laboratory until 2003. Dr. Mahlberg received his Ph.D. in Botany from the University of California, Berkeley and his M.S. and B.S. degrees in Botany from the University of Wisconsin, Madison.
Over the years, Dr. Mahlberg has been a sought-after consultant as one of the leading experts on the cannabis plant in North America and throughout the world. Dr. Mahlberg has been a consultant to the School of Pharmacy at the University of Mississippi in its Cannabis program. He also consulted the United Nations Industrial Development Organization, Vienna, on the processing of raw opiate material.
Dr. Mahlberg’s studies examined the growth response and distribution of individual cannabinoids in all of the collected strains under controlled greenhouse conditions to interpret taxonomic, chemical and evolutionary relationships and identified the sites of cannabinoid accumulation and distribution in glands throughout the plant. Different techniques and instrumentation were used such as gas-liquid, liquid-liquid and other chromatographic techniques as well as various forms of microscopy, light, scanning and thin section and THC antibody autoradiography techniques and micromanipulation to localize cannabinoids at the cellular level to chemically identify and analyze the cannabinoids utilizing standards (cannabidiol, tetrahydrocannabinol, cannabichromene, cannabinol) provided by the National Institute on Drug Abuse for chromatographic analyses.
Dr. Mahlberg’s work has also been the subject of articles in many national publications such as High Times Magazine focusing on his research to determine optimal harvest times of Cannabis to capture the highest levels of specific cannabinoids such as THC.