title: Effect of preprocessing and compressed propane extraction on quality of cilantro (Coriandrum sativum L.).
abstract: Dehydration leads to quality defects in cilantro such as loss in structure, color, aroma and flavor. Solvent extraction with compressed propane may improve the dehydrated quality. In the present study, effect of drying temperature, particle size, and propane extraction on color, volatile composition, and fatty acid composition of cilantro was evaluated. Cilantro was dehydrated (40°C or 60°C), size reduced and separated into three particles sizes, and extracted with compressed propane at 21-27°C. Major volatile compounds found in dried cilantro were E-2-tetradecenal, dodecanal, E-2-dodecenal, and tetradecanal. Major fatty acids were linoleic acid and α-linolenic acid. Drying at 60°C compared to 40°C resulted in better preservation of color (decrease in browning index values) and volatile compounds. Propane extraction led to a positive change in color values and a decrease in volatile composition, oil content, and fatty acid composition.
authors.affiliation: Department of Biosystems and Agricultural Engineering, College of Engineering, Architecture and Technology, Oklahoma State University, Stillwater, OK 74078, United States. Electronic address: jasreen@okstate.edu.
authors.forename: Jasreen K
authors.initials: JK
authors.lastname: Sekhon
authors.affiliation: Department of Horticulture and Landscape Architecture, College of Agricultural Sciences and Natural Resources, Oklahoma State University, Stillwater, OK 74078, United States.
authors.forename: Niels O
authors.initials: NO
authors.lastname: Maness
authors.affiliation: Department of Biosystems and Agricultural Engineering, College of Engineering, Architecture and Technology, Oklahoma State University, Stillwater, OK 74078, United States.
authors.forename: Carol L
authors.initials: CL
authors.lastname: Jones
mesh_terms: D028526:Coriandrum / Q000737:chemistry*; D005519:Food Preservation / Q000379:methods*; D059625:Liquid-Liquid Extraction; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D011407:Propane / Q000737:chemistry*; D013649:Taste
chemical_list: D010936:Plant Extracts; D011407:Propane
keywords: Cilantro; Color; Dehydration; Fatty acid; Propane; Volatile flavor