Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Biorefinery of turmeric (Curcuma longa L.) using non-thermal and clean emerging technologies: an update on the curcumin recovery step

Full text
Author(s):
Landim Neves, Maria Isabel [1] ; Strieder, Monique Martins [1] ; Vardanega, Renata [1] ; Silva, Eric Keven [1] ; Meireles, M. Angela A. [1]
Total Authors: 5
Affiliation:
[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, LASEFI DEA FEA, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: RSC ADVANCES; v. 10, n. 1, p. 112-121, JAN 1 2020.
Web of Science Citations: 0
Abstract

In this study, a biorefinery for the processing of turmeric (Curcuma longa L.) based on clean and emerging technologies has been proposed. High-intensity ultrasound (HIUS) technology was evaluated as a promising technique for curcumin recovery aiming to improve its extraction yield and technological properties as a colorant. In addition, we evaluated the effects of process conditions on the turmeric biomass after the extractions. The process variables were the number of stages of extraction with ethanol (1, 3 and 5) and the solvent to feed ratio (S/F) of 3, 5, 7, 9 (w/w). The highest curcumin content (41.6 g/100 g extract) was obtained using 1 wash and a S/F of 5 w/w, while the highest curcumin yield (3.9 g/100 g unflavored turmeric) was obtained using 5 stages and a S/F of 7. The extracts obtained by solid-liquid extraction assisted by HIUS showed a yellow color (157 and 169 of yellowness index) more intense than those obtained by the pressurized liquid extraction technique (101 of yellowness index) and better yield results than low-pressure solid-liquid extraction (using the same processing time). Thus, it was possible to obtain a characteristic yellow colorant with high curcumin yield in a short process time (5 min of extraction) using HIUS technology. Besides that, SEM images and FTIR spectra demonstrated that the turmeric biomasses processed by HIUS technology were not degraded. (AU)

FAPESP's process: 15/22226-6 - Sterilization of liquid foods using supercritical technology
Grantee:Eric Keven Silva
Support Opportunities: Scholarships in Brazil - Post-Doctoral