Interaction of Cyclodextrins with Aliphatic Acetate Esters and Aroma Components of La France Pear

• Published in: Journal of agricultural and food chemistry Vol. 53; no. 13; pp. 5402 - 5406
• Main Authors: Tobitsuka, Koki, Miura, Makoto, Kobayashi, Syoichi
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 29.06.2005
• Subjects: Acetates - chemistry; aliphatic acetate esters; Biological and medical sciences; chemical reactions; cyclodextrins; Cyclodextrins - chemistry; esters; Esters - chemistry; flavor compounds; flavorings; Food industries; Food Preservation; food processing; Freeze Drying; Fruit - chemistry; Fruit and vegetable industries; Fundamental and applied biological sciences. Psychology; Magnetic Resonance Spectroscopy; odor compounds; Odorants - analysis; pears; powdered foods; powdered pear flavoring; Pyrus - chemistry; Solutions; Taste; Water; France; Europe; Pyrus communis; Pear; Fruit; Interaction; Rosaceae; Acetate; Flavor; Ester; Cyclodextrin; Dicotyledones; Angiospermae; La France; complex; Spermatophyta; Chemical composition; Aroma
• ISSN: 0021-8561; 1520-5118
• DOI: 10.1021/jf0504364

The interaction between aliphatic acetate esters, which are the major flavor components of La France pear (Pyrus communis L.), and cyclodextrins (CDs) was studied to obtain fundamental data for preparing powdered pear flavor materials. The complexing abilities of α-, β-, or γ-CD with six kinds of aliphatic acetate esters were compared. α-CD formed the highest numbers of complexes with all of the esters. All of the CDs produced complexes more readily with the more hydrophobic esters. Among our samples of freeze-dried pear juice containing dissolved α-, β-, or γ-CD, the juice with α-CD retained the greatest amount of esters. These data demonstrate that α-CD is an effective material with which to prepare powdered pear flavor materials. The nuclear Overhauser effect, measured by 1H NMR spectra, of an α-CD−butyl acetate or α-CD−hexyl acetate complex showed that these esters were included in the α-CD cavity. Keywords: Cyclodextrin; ester; complex; flavor; aroma; pear; La France