“extraction of Essential Oil Using Steam Distillation” a Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Bachelor of Technology

Rourkela CERTIFICATE This is to certify that the thesis entitled, " Extraction of Essential oil using steam distillation " submitted by K. Satish kumar in partial fulfillments for the requirements for the award of Rourkela is an authentic work carried out by him under my supervision and guidance. To the best of my knowledge, the matter embodied in the thesis has not been submitted to any other University / Institute for the award of any Degree or Diploma. ACKNOWLEDGEMENT I would like to make my deepest appreciation and gratitude to Prof. (Mrs.) A. Sahoo for his valuable guidance; constructive criticism and encouragement during every stage of this project. I Head of the Department, and Chemical Engineering for providing me the necessary opportunities for the completion of my project. I also thank other staff members of my department for their invaluable help and guidance. ABSTRACT A large number of herb materials contain Essential Oils with extensive bioactivities. Acknowledging the importance of plants and its medicinal value, extraction of Essential Oil had been done using Steam Distillation method. In this project Steam Distillation was used to extract oil from different plant materials like eucalyptus leaves, curry leaves, hibiscus leaves, lemon leaves, marigold flowers, rose flowers, orange peels etc. Research has confirmed centuries of practical use of essential oils, and we now know that the 'fragrant pharmacy' contains compounds with an extremely broad range of biochemicaleffects. Essential oils are so termed as they are believed to represent the very essence of odor and flavor. The recovery of Essential Oil (the value added product) from the raw botanical starting material is very important since the quality of the oil is greatly influenced during this step. There are a variety of methods for obtaining volatile oils from plants. Steam distillation method was found to be one of the promising techniques for the extraction of essential oil from plants as reputable distiller will preserve the original qualities of the plant. Thedistillation was conducted in Clevenger apparatus in which boiling, condensing and decantation was done. Analysis of Essential oil was done using Gas Chromatography-Mass Spectrometer apparatus, which givesevaluates Essential Oil qualitatively and quantitatively. Volume of Essential Oil obtained was changing w.r.t temperature and time of heating.