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  Indian J Med Microbiol
 

Figure 1: Schematic diagram of SFE system: (1) CO2 tank; (2) molecular sieve filter; (3) ss 2 μm pore size filter; (4) carbon dioxide transfer pump; (5, 8, 13) two-way needle valves; (6) Ethanol v; (7) high-pressure piston pump; (9) three ways valve; (10) preheating coil; (11) extraction cell; (12) thermostated oven; (14) back-pressure regulator; (15) sample collection vessel

Figure 1: Schematic diagram of SFE system: (1) CO2 tank; (2) molecular sieve filter; (3) ss 2 μm pore size filter; (4) carbon dioxide transfer pump; (5, 8, 13) two-way needle valves; (6) Ethanol v; (7) high-pressure piston pump; (9) three ways valve; (10) preheating coil; (11) extraction cell; (12) thermostated oven; (14) back-pressure regulator; (15) sample collection vessel