title: Identification, synthesis, and characterization of novel sulfur-containing volatile compounds from the in-depth analysis of Lisbon lemon peels (Citrus limon L. Burm. f. cv. Lisbon).
abstract: Lemons (Citrus limon) are a desirable citrus fruit grown and used globally in a wide range of applications. The main constituents of this sour-tasting fruit have been well quantitated and characterized. However, additional research is still necessary to better understand the trace volatile compounds that may contribute to the overall aroma of the fruit. In this study, Lisbon lemons (C. limon L. Burm. f. cv. Lisbon) were purchased from a grove in California, USA, and extracted by liquid-liquid extraction. Fractionation and multidimensional gas chromatography-mass spectrometry were utilized to separate, focus, and enhance unidentified compounds. In addition, these methods were employed to more accurately assign flavor dilution factors by aroma extract dilution analysis. Numerous compounds were identified for the first time in lemons, including a series of branched aliphatic aldehydes and several novel sulfur-containing structures. Rarely reported in citrus peels, sulfur compounds are known to contribute significantly to the aroma profile of the fruit and were found to be aroma-active in this particular study on lemons. This paper discusses the identification, synthesis, and organoleptic properties of these novel volatile sulfur compounds.
authors: International Flavors & Fragrances Inc., Research & Development 1515 State Highway 36, Union Beach, New Jersey 07735, United States.
authors: Robert J
authors: RJ
authors: Cannon
authors: Arkadiusz
authors: A
authors: Kazimierski
authors: Nicole L
authors: NL
authors: Curto
authors: Jing
authors: J
authors: Li
authors: Laurence
authors: L
authors: Trinnaman
authors: Adam J
authors: AJ
authors: Jańczuk
authors: David
authors: D
authors: Agyemang
authors: Neil C
authors: NC
authors: Da Costa
authors: Michael Z
authors: MZ
authors: Chen
mesh_terms: D002957:Citrus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D010936:Plant Extracts / Q000138:chemical synthesis / Q000737:chemistry* / Q000302:isolation & purification; D013455:Sulfur / Q000032:analysis*; D055549:Volatile Organic Compounds / Q000138:chemical synthesis / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D055549:Volatile Organic Compounds; D013455:Sulfur
keywords: GC-MS; GC-O; lemons; volatile sulfur compounds