Identification, Chemical Synthesis, and Sweetness Evaluation of Rhamnose or Xylose Containing Steviol Glycosides of Stevia (Stevia rebaudiana) Leaves.
J Agric Food Chem
; 71(29): 11158-11169, 2023 Jul 26.
Article
in En
| MEDLINE
| ID: mdl-37432401
ABSTRACT
Steviol glycosides obtained from Stevia rebaudiana leaves are increasingly used in the food industry as natural low-calorie sweeteners. Among them, the sweetness of major glycosides composed of glucose residues (e.g., stevioside and rebaudioside A) has been widely studied. However, the properties of minor natural products containing rhamnose or xylose residues are poorly investigated. In this study, five unreported steviol glycosides containing rhamnose or xylose were extracted from our developing stevia leaves, and their sweetness was evaluated. The highly glycosylated steviol glycosides were identified, and their structures were examined by fragmentation analysis using mass spectrometry. Chemical synthesis of these glycosides confirmed their structures and allowed sensory evaluation of minor steviol glycosides. Our study revealed that a xylose-containing glycoside, rebaudioside FX1, exhibits a well-balanced sweetness, and thus, it is a promising candidate for natural sweeteners used in the food industry.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Stevia
/
Diterpenes, Kaurane
Type of study:
Diagnostic_studies
Language:
En
Year:
2023
Type:
Article