Study on the mechanism of glucose-lowering and sweetening of key sweet aroma compounds in sweet orange
文献类型： 外文期刊
作者： Niu, Yunwei 1 ; Wei, Jie 1 ; Zhu, Jiancai 1 ; Feng, Haohua 1 ; Ren, Yukun 1 ; Guo, Zhimin 1 ; Zhang, Jing 1 ; Zhou, Rujuan 1 ; She, Yuanbin 4 ; Wang, Zhaogai 3 ; Xiao, Zuobing 1 ;
作者机构： 1.Shanghai Inst Technol, Sch Perfume & Aroma Technol, Shanghai 201418, Peoples R China
2.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China
3.Henan Acad Agr Sci, Agr Prod Proc Ctr, Zhengzhou, Peoples R China
4.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Peoples R China
关键词： Characteristic aroma compounds; Sweet orange; Sugar reduction and sweetness enhancement; Molecular docking; Molecular dynamics (MD) simulation
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.0； 五年影响因子：8.5 ）
ISSN： 0963-9969
年卷期： 2024 年 196 卷
页码：
收录情况： SCI
摘要： Rising living standards heighten the demand for healthier sugar-reduced foods. This study used Headspace SolidPhase Microextraction (HS-SPME) and Gas Chromatography-Olfactometry-Mass Spectrometry (GC/O-AT) to analyze volatile components in sweet orange juice, identifying 12 key sweet aroma compounds. Sensory and electronic tongue evaluations indicated that seven sweetness-related odor substances- (E)-citral, (E)-(3-farnesene, (3-myrcene, tallo-ocimene, nonanal, citronellyl formate, and tallo-ocimene-significantly enhanced the sweetness of a 5 % sucrose solution. In contrast, while nonanol was found to have no sugar-reducing sweetnessenhancing effect. Furthermore, molecular docking analysis was employed to examine the regions, binding energies, and interaction forces between eight sweet and fragrant aroma compounds from sweet orange and the T1R2-T1R3 sweet taste receptor-sucrose ternary system. The average binding energies with the receptor were -3.2 kcal/mol, -1.2 kcal/mol, -3.0 kcal/mol, -1.6 kcal/mol, -5.9 kcal/mol, -5.8 kcal/mol, -3.6 kcal/mol, and -6.0 kcal/mol, respectively. However, it should be noted that binding energy alone is not the sole criterion for judging the sweetening effect. Molecular dynamics (MD) results further demonstrated that the stability of the binding between sucrose and the sweet taste receptor was improved under the influence of (E)-citral, with the interaction between the two relying on hydrogen bonds, water bridges, and hydrophobic forces. This provides a theoretical basis for validating the sweetness-enhancing effects of aroma substances and insights into novel sweetener development.
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