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Moreira RC, de Melo RPF, Martínez J, Marostica Junior MR, Pastore GM, Zorn H, Bicas JL. Supercritical CO 2 as a Valuable Tool for Aroma Technology. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37289784 DOI: 10.1021/acs.jafc.3c01023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This review addresses the possibilities of using supercritical carbon dioxide (SC-CO2) in the flavor industry in extraction and fractionation processes and its use as a reaction medium to generate aroma esters. The advantages and disadvantages are presented, comparing SC-CO2 processing with traditional methods. The most distinguishable features of SC-CO2 include mild reaction conditions, time savings, fewer toxicity concerns, higher sustainability, and the possibility of modulating solvent selectivity according to the process conditions (such as pressure and temperature). Thus, this review indicates the potential of using SC-CO2 to obtain a high selectivity of compounds that can be applied in aroma technology and related fields.
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Affiliation(s)
- Rafael Chelala Moreira
- University of Campinas, School of Food Engineering, Department of Food Science and Nutrition. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
| | - Rayanne Priscilla França de Melo
- University of Campinas, School of Food Engineering, Department of Food Engineering and Technology. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
| | - Julian Martínez
- University of Campinas, School of Food Engineering, Department of Food Engineering and Technology. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
| | - Mario Roberto Marostica Junior
- University of Campinas, School of Food Engineering, Department of Food Science and Nutrition. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
| | - Glaucia Maria Pastore
- University of Campinas, School of Food Engineering, Department of Food Science and Nutrition. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
| | - Holger Zorn
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring, 17, 35392 Giessen, Germany
| | - Juliano Lemos Bicas
- University of Campinas, School of Food Engineering, Department of Food Science and Nutrition. Monteiro Lobato Street, 80, 13083-862 Campinas, SP, Brazil
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High Vacuum Fractional Distillation (HVFD) Approach for Quality and Performance Improvement of Azadirachta indica Biodiesel. ENERGIES 2020. [DOI: 10.3390/en13112858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biodiesel offers an advantage only if it can be used as a direct replacement for ordinary diesel. There are many reasons to promote biodiesel. However, biodiesel cannot get wide acceptance until its drawbacks have been overcome including poor low temperature flow properties, variation in the quality of biodiesel produced from different feedstocks and fuel filter blocking. In the present study, a much cheaper and simpler method called high vacuum fractional distillation (HVFD) has been used as an alternative to produce high-quality refined biodiesel and to improve on the abovementioned drawbacks of biodiesel. The results of the present study showed that none of biodiesel sample produced from crude Azadirachta indica (neem) oil met standard biodiesel cetane number requirements. The high vacuum fractional distillation (HVFD) process improved the cetane number of produced biodiesels which ranged from 44–87.3. Similarly, biodiesel produced from fractionated Azadirachta indica oil has shown lower iodine values (91.2) and much better cloud (−2.6 °C) and pour point (−4.9 °C) than pure Azadirachta indica oil. In conclusion, the crude oil needs to be vacuum fractioned for superior biodiesel production for direct utilization in engine and consistent quality production.
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Supercritical extraction and fractionation of Jatropha curcas L. oil for biodiesel production. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2014.11.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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