Iranian Food Science and Technology Research Journal
with the collaboration of Iranian Food Science and Technology Association (IFSTA)

Rosmarinic Acid Extraction from Ehretia asperula Grown in Vietnam and Its Application in Herbal Candy

Articles in Press

Document Type : Research Article-en

Authors

Tram Pham Thi My 1
Nguyen Le 2
Toan Nguyen Dai 2

1 Institute of Green and Sustainable Technology, Thu Dau Mot University, Ho Chi Minh City

2 Institute of Green and Sustainable Technology, Thu Dau Mot University, Ho Chi Mi

10.22067/ifstrj.2026.100141.1611
Abstract
Ehretia asperula Zoll. & Mor. is widely used in Vietnamese folk medicine. This work investigated extraction factors, including material-to-solvent ratio (1:20-1:60 g:mL), temperature (50-80°C), and time (60-150 min), to establish appropriate conditions for obtaining rosmarinic acid (RA) from dried E. asperula leaves. The following selected extraction parameters were found to yield the maximum RA content (32.289 mg.g-1 DW): a material-to-solvent ratio of 1:40 (g:mL), an extraction temperature of 60°C, and an extraction duration of 60 minutes. Herbal hard candies were also made using the extract of E. asperula leaves. Compared with the control, the herbal candy with dried-leaf extract had a darker yellow hue and higher sensory scores. Among the formulations, the hard candy containing 15% extract received the highest mean scores for color, odor, taste, and texture, while the 15% and 20% formulations had comparable overall acceptance scores. Generally, the analyses suggest that E. asperula leaves are a rich herbal source of RA compound and that extracts from these leaves could be used as an additive in hard candies to enhance color and nutritional value.

Keywords

Ehretia asperula
extraction
herbal candy
rosmarinic acid
Xa den
Subjects
Send comment about this article
Enter Name.
Enter a valid email address.
Enter a vaid affiliation.
Enter comments (At leaset 10 words)
CAPTCHA Image
Enter Security Code Correctly.
Iranian Food Science and Technology Research Journal

Articles in Press, Accepted Manuscript
Available Online from 03 November 2026

  • Receive Date 29 July 2026
  • Revise Date 29 August 2026
  • Accept Date 16 September 2026
  • First Publish Date 03 November 2026

Home

Editorial Board

Publication Ethics

Contact Us