ABSTRACT
DEEPAK KUMAR VERMA,1 JYOTI P. DHAKANE,2 DIPENDRA KUMAR MAHATO,3 SUDHANSHI BILLORIA,4 PARAMITA BHATTACHARJEE,5 and PREM PRAKASH SRIVASTAV 1Research Scholar, Department of Agricultural and Food Engineerin Indian Institute of Technology, Kharagpur-721 302, West Bengal, INDIA, Mobile: +91-7407170260, +91-9335993005, Telephone: +91-3222-281673, Fax: +91-3222-282224, E-mail: deepak.verma@agfe.iitkgp.ernet.in, rajadkv@rediffmail.com 2Research Scholar, Indian Agricultural Research Institute, Pusa Campus, New Delhi-110012, INDIA, Mobile: +91-8745000441, E-mail: jyotip.dhakane@gmail.com 3Senior Research Fellow, Indian Agricultural Research Institute, Pu Campus, New Delhi-110012, INDIA, Mobile: +91-9911891494, +91-9958921936, E-mail: kumar.dipendra2@gmail.com 4Research Scholar, Department of Agricultural and Food Engineerin Indian Institute of Technology, Kharagpur-721302, West Bengal, India, Mobile: +91-8768126479, E-mail: sudharihant@gmail.com 5Reader, Department of Food Technology & Biochemical Engineering Jadavpur University, Kolkata-700 032, India, Mobile: +91-9874704488 E-mail: pb@ftbe.jdvu.ac.in, yellowdaffodils07@gmail.com 6Associate Professor, Department of Agricultural and Food Engineering, Indian Institute of Technology, Kharagpur-721302, W
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E-mail: pps@agfe.iitkgp.ernet.in
7.1 Introduction .................................................................................. 180 7.2 Principle and Instrumentation ...................................................... 182 7.3 Extraction Process ........................................................................ 187 7.4 Merits and Demerits ..................................................................... 188 7.5 Case Study on SCFE Method for Rice Aroma Chemicals ........... 189 7.6 Summary and Conclusion ............................................................ 191 Acknowledgment .................................................................................. 191 Keywords .............................................................................................. 192 References ............................................................................................. 192
7.1 INTRODUCTION
Supercritical fluid extraction (SCFE) is one of the most innovative and reliable methods for separation and extraction process of volatile aroma compounds by use of supercritical fluids (SCFs) as the extraction solvent (Figure 7.1) (McHugh and Krukonis, 1986; Hawthorne et al., 1988; Sinha et al., 1992; Anklam et al., 1998; King, 2002). SCF could be easily removed from the extracted material, almost leaving no trace by decreasing pressure and therefore is eco-friendly (Stashenko et al., 1996, 2004). Therefore, the resulting treatment is simple when SCF is used for the extraction of volatile aroma compounds.
