Article (Scientific journals)
Novel insight into the evolution of volatile compounds during dynamic freeze-drying of Ziziphus jujuba cv. Huizao based on GC-MS combined with multivariate data analysis
Gou, Min; Chen, Qinqin; Wu, Xinye et al.
2023In Food Chemistry, 410, p. 135368
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Keywords :
General Medicine; Food Science; Analytical Chemistry; Pilot scale freeze drying; Amino acids; Fatty acids; Network analysis; Mantel test
Abstract :
[en] To understand the evolution of aroma in jujubes during dynamic freeze drying (FD), the relationship between aroma compounds, precursors, and related enzyme activities were analyzed. Fifty-three volatiles were identified during FD processing. After FD, the total aroma contents were increased from 11,004 to 14,603 μg/kg, ketones content was significantly decreased by 54.11%, resulted in the loss of creamy note in freeze-dried jujube (FDJ). Through the network analysis, serine, glycine, proline, valine, cysteine, arginine, glutamic acid, lysine and leucine had the significant correlation with pyrazines, dominated the roasty note of FDJ. Linoleic acid, α-linolenic acid and oleic acid with lipoxygenase had important effects on the increase of esters (from 412 to 9,486 μg/kg), contributed fruity and sweet notes of FDJ. Besides, through the Mantel test, the influence degree of factors on the formation of FDJ aroma was ranked as temperature > enzyme activity > fatty acids > amino acids.
Disciplines :
Food science
Chemistry
Author, co-author :
Gou, Min  ;  Université de Liège - ULiège > TERRA Research Centre
Chen, Qinqin
Wu, Xinye ;  Université de Liège - ULiège > TERRA Research Centre
Liu, Gege
Fauconnier, Marie-Laure  ;  Université de Liège - ULiège > TERRA Research Centre > Chimie des agro-biosystèmes
Bi, Jinfeng
Language :
English
Title :
Novel insight into the evolution of volatile compounds during dynamic freeze-drying of Ziziphus jujuba cv. Huizao based on GC-MS combined with multivariate data analysis
Publication date :
2023
Journal title :
Food Chemistry
ISSN :
0308-8146
eISSN :
1873-7072
Publisher :
Elsevier BV
Volume :
410
Pages :
135368
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Financial Fund of Agricultural Science and Technology Innovation Program, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences
Funding number :
CAAS-ASTIP- 2022-IFST
Available on ORBi :
since 31 January 2023

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