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Prof D.B.Limaye
Prof. D.B.Limaye founder of Rasayan Nidhi, Rasayan Mandir, in Pune was analyzing oil yielding seeds. He analysed a crystalline substance from dark sediment in Karanj (Pongamia glabra) seeds. He analysed the substance and found it was not known. He established the structure of Karanjeen as C18 H O4. He tried to synthesize this ketone from the chemicals similar to the substance. During his research he established Nidhone process. His research paper appeared in German Chemical Society's research journal Berichte. This Nidhone process was accepted by research chemists all over the world.

Later he gave guidance to 55 students for M.Sc. degree of Bombay university.Most of his research was done at Ranade Four students completed doctoral research under his guidance at Ranade Industrial and research Laboratory, Pune. Pune University conferred honorary D.Sc. degree in 1967 for his achievement in Chemical Research. With limited budget he had to fabricate some equipment with available material at his disposal.

Prof.ride out original research work on flavones, flavanols, furoflavones, furocoumarins and furochromes.This work has been of basic importance in the chemistry of naturally occurring compounds and their synthesis. Prof D.B. Limaye worked in Ranade industrial Research Institute from 1911-1954.With meager facilities and funds at his disposal,he carried out research on tannins. Later he isolated a substance ,called it Karanjin since it was obtained from Karanj seeds. He not only established its structure but also carried out partial synthesis. The processes he developed led to further discoveries in organic chemistry and he obtained world recognition. Poona was ths put on the scientific map of the world due to the pioneering and selfless research by Professor Limaye. He carried out original research work on flavones, flavonols,furoflavones, furocoumarins and furochromones. This work is of basic importance in the basic chemistry of naturally occurring compounds and their synthesis.he also carried out series of new synthesis of beta diketone and glutonic acids.Many of the compounds prepared by his group are of use in organic analytical chemistry and opened a bew chapter in the use of organic reagents in inorganic chemistry.

His Nidhone process for the synthesis of 2-acyl-resorcins(19340 and synthesis of furocoumarins earned him worldwide recognition.Prof. D.B.Limaye trained a very large number of students who after completion of their studies were placed in research and in industry .Later on his son Dr. S.D. Limaye also gave guidance to students . After establishment of Pune University ,Ranade Institute was handed over to Pune UniversityChemistry department received assets worth rs. three lakhs in 1954.Thus prof. Limaye was also responsible for securing substantial funds for post-graduate studies and research in Chemistryfor Pune University. When Prof. D.B.Limaye retired from Rasayan Mandir due to old age, he retired from Rasayan Nidhi trust as well. Rasayan Nidhi was donated to Pune university to give scholarship in Chemistry at Pune university. Prof. Limaye founded research Publication so that his students got publicity for their research work on priority basis. In those years internet ,was non existent.Sendingpapers to Europe was time consuming.From his meager earnings, simple living, he kept some funds for research activities.