New selective and sustainable ultrasound-assisted extraction procedure to recover carnosic and rosmarinic acids from Rosmarinus officinalis by sequential use of bio-based solvents

Author(s)

Pizani, Rodrigo S. ; Vigano, Juliane ; Contieri, Leticia S. ; Strieder, Monique M. ; Kamikawashi, Renan K. ; Vilegas, Wagner ; Mesquita, Leonardo M. de Souza ; Rostagno, Mauricio A.

• Document type: Journal article
• Source: Food Chemistry; v. 435, p. 11-pg., 2023-09-30.

Abstract

Carnosic (CA) and rosmarinic (RA) acids are the primary phenolic acids in hydrophilic rosemary extracts. Their combination exhibits high antioxidant activity and can be explored in several applications. This study aimed to develop an extraction procedure using bio-based solvents to recover two rosemary extracts, one rich in CA and the other in RA. By using ultrasound-assisted extraction (UAE) and a pool of 34 solvents, we evaluated nominal power (W), extraction time (min), and solvent water percentage (% H2O) regarding yield and selectivity. The authors propose a sequential UAE procedure validated by applying ethanol 99.5 % (v/v), 240 W, and 5 min to recover a rich fraction of 24.0 mg(CA).g(biomass)(-1); followed by a second step using AmAc:LA (1:2 M ratio), 20 % H2O (m/m), 320 W, and 5 min that resulted in 8.4 mgRA.g(biomass)(-1). Our results indicate that modulating the solvent composition and process temperature is critical to increasing extraction yields and selectivity. (AU)

• FAPESP's process: 20/08421-9 - Application of non-volatile alternative solvents to create sustainable two-dimensional and integrated platforms for harnessing agro-industrial waste from jaboticaba and pomegranate fruits
• Grantee: Leonardo Mendes de Souza Mesquita
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 20/04067-6 - Evaluation of ultrasound-assisted pressurized fluid extraction coupled with solid phase extraction for extracting phenolic compounds and terpenes from rosemary (Rosmarinus officinalis) and sage (Salvia officinalis)
• Grantee: Rodrigo Stein Pizani
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 20/03623-2 - Extraction and separation of phenolic compounds from green propolis by a bidimensional system
• Grantee: Letícia Sanches Contieri
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 19/13496-0 - Multi user equipment approved in grant 2018/14582-5: ultra-high pressure liquid chromatography system (UHPLC), composed by a quaternary pump, autoinjector, oven with selection valve and detector (PDA)
• Grantee: Maurício Ariel Rostagno
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 21/12264-9 - A techno-economic evaluation of emerging technologies and green solvents coupling to the two-dimensional system of extraction, separation and analysis to obtain phenolic compounds from waste of the coffee and plant-based beverages industry
• Grantee: Monique Martins Strieder
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/14582-5 - Development of a two-dimensional extraction, separation and analysis system for evaluating the bioactivity of phytochemicals
• Grantee: Maurício Ariel Rostagno
• Support Opportunities: Research Grants - Young Investigators Grants - Phase 2