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Identification of new strawberry sulfur volatiles and changes during maturation.
J Agric Food Chem. 2011 Feb 23; 59(4):1293-300.JA

Abstract

Two Florida strawberry cultivars, 'Strawberry Festival' and 'Florida Radiance', were harvested at five fruit developmental stages (white, half red, three-quarter red, full ripe, and overripe) at four harvest dates. A static headspace solid-phase microextraction (SPME) sampling technique coupled with gas chromatography (GC) using pulsed flame photometric detection (PFPD) was employed to measure 16 sulfur volatiles in these strawberries. A total of 7 sulfur volatiles have been previously reported, and 9 are reported for the first time in strawberries. Newly identified sulfur volatiles include methyl thiopropionate, ethyl thiobutanoate, methyl thiohexanoate, methyl (methylthio)acetate, ethyl (methylthio)acetate, methyl 2-(methylthio)butyrate, methyl 3-(methylthio)propionate, ethyl 3-(methylthio)propionate, and methyl thiooctanoate. Identifications were based on matching sulfur peak linear retention indexes (LRIs) of unknowns with authentic standards and gas chromatography-mass spectrometry (GC-MS) data. Concentrations were determined using both internal and external standards. Most sulfur volatiles increased with increasing maturity, with only concentrations of hydrogen sulfide and methanethiol remaining relatively consistent at all five stages. At the white and half red stages, most sulfur volatiles consisted of various alkyl sulfides. At three-quarter red (commercial ripe), full ripe, and overripe stages, the majority of sulfur volatiles consisted of sulfur esters. Most sulfur volatiles increased dramatically between the commercial ripe, full ripe, and overripe stages, increasing as much as 100% between full ripe and overripe. Principal component analysis indicated that sulfur volatiles could be used to distinguish overripe from full ripe and commercial ripe berries.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Du X
Citrus Research and Education Center, University of Florida , Lake Alfred, Florida 33850, United States.
Song M
No affiliation info available
Rouseff R
No affiliation info available

MeSH

Chromatography, GasFragariaFruitGas Chromatography-Mass SpectrometrySolid Phase ExtractionSulfur CompoundsVolatile Organic Compounds

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

21280634

Citation

Du, Xiaofen, et al. "Identification of New Strawberry Sulfur Volatiles and Changes During Maturation." Journal of Agricultural and Food Chemistry, vol. 59, no. 4, 2011, pp. 1293-300.
Du X, Song M, Rouseff R. Identification of new strawberry sulfur volatiles and changes during maturation. J Agric Food Chem. 2011;59(4):1293-300.
Du, X., Song, M., & Rouseff, R. (2011). Identification of new strawberry sulfur volatiles and changes during maturation. Journal of Agricultural and Food Chemistry, 59(4), 1293-300. https://doi.org/10.1021/jf104287b
Du X, Song M, Rouseff R. Identification of New Strawberry Sulfur Volatiles and Changes During Maturation. J Agric Food Chem. 2011 Feb 23;59(4):1293-300. PubMed PMID: 21280634.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Identification of new strawberry sulfur volatiles and changes during maturation. AU - Du,Xiaofen, AU - Song,Mei, AU - Rouseff,Russell, Y1 - 2011/01/31/ PY - 2011/2/2/entrez PY - 2011/2/2/pubmed PY - 2011/5/3/medline SP - 1293 EP - 300 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 59 IS - 4 N2 - Two Florida strawberry cultivars, 'Strawberry Festival' and 'Florida Radiance', were harvested at five fruit developmental stages (white, half red, three-quarter red, full ripe, and overripe) at four harvest dates. A static headspace solid-phase microextraction (SPME) sampling technique coupled with gas chromatography (GC) using pulsed flame photometric detection (PFPD) was employed to measure 16 sulfur volatiles in these strawberries. A total of 7 sulfur volatiles have been previously reported, and 9 are reported for the first time in strawberries. Newly identified sulfur volatiles include methyl thiopropionate, ethyl thiobutanoate, methyl thiohexanoate, methyl (methylthio)acetate, ethyl (methylthio)acetate, methyl 2-(methylthio)butyrate, methyl 3-(methylthio)propionate, ethyl 3-(methylthio)propionate, and methyl thiooctanoate. Identifications were based on matching sulfur peak linear retention indexes (LRIs) of unknowns with authentic standards and gas chromatography-mass spectrometry (GC-MS) data. Concentrations were determined using both internal and external standards. Most sulfur volatiles increased with increasing maturity, with only concentrations of hydrogen sulfide and methanethiol remaining relatively consistent at all five stages. At the white and half red stages, most sulfur volatiles consisted of various alkyl sulfides. At three-quarter red (commercial ripe), full ripe, and overripe stages, the majority of sulfur volatiles consisted of sulfur esters. Most sulfur volatiles increased dramatically between the commercial ripe, full ripe, and overripe stages, increasing as much as 100% between full ripe and overripe. Principal component analysis indicated that sulfur volatiles could be used to distinguish overripe from full ripe and commercial ripe berries. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/21280634/Identification_of_new_strawberry_sulfur_volatiles_and_changes_during_maturation_ DB - PRIME DP - Unbound Medicine ER -