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Physical and Chemical Influences of Different Extraction Techniques for Essential Oil Recovery from Citrus sinensis Peels
- Source :
- Journal of Essential Oil Bearing Plants, Journal of Essential Oil Bearing Plants, Taylor & Francis, 2021, 24 (2), pp.290-303. ⟨10.1080/0972060X.2021.1925596⟩
- Publication Year :
- 2021
- Publisher :
- Informa UK Limited, 2021.
-
Abstract
- The orange tree (Citrus sinensis) is a species of fruit shrubs of the Rutaceae family. Essential oils from citrus peels are widely used in various agro-food and pharmaceutical preparations and hence they must be recovered using green extraction methods. In this study, we compare the efficiency of five extraction techniques (conventional hydro-distillation (HD), Salt-assisted extraction by HD (S-HD), Ultrasound-assisted extraction by HD (US-HD), Enzymes-assisted extraction by HD (E-HD), and Solvent-free microwave extraction (SFME)) for the extraction of essential oil from Citrus sinensis peels. The essential oils were compared with regard to their chemical compositions, light microscopy analysis, total energy consumption, and antioxidant activity. GC/MS analysis allowed the identification of 28 compounds in the different essential oils. The principal identified component was limonene (86.7 %, 87.9 %, 88.2 %, 88.3 %, 85.4 % for HD, S-HD, US-HD, E-HD, and SFME, respectively), followed by β-pinene, sabinene, linalool and α-terpineol. The obtained essential oils were analyzed for their antioxidant activity using the 2,2-diphenyl-1-picrylhydrazyl radical scavenging method. Results indicated that essential oil extracted by SFME showed the highest antioxidant activity (IC50 = 0.0175 mg/ml) and extraction yield (3.58 % ± 0.05) consuming lower energy (0.312 kW h-1) in a shorter extraction time (30 min) comparing with the other tested techniques. Hence, the SFME would be an interesting green method for the recovery of essential oil from C. sinensis peels useful in agro-food, cosmetic, and pharmaceutical preparations as an alternative for undesirable chemical additives.
- Subjects :
- Citrus peels
01 natural sciences
Biochemistry
Essential oil
Analytical Chemistry
law.invention
law
[SDV.IDA]Life Sciences [q-bio]/Food engineering
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM]
Orange Tree
biology
Green extraction
010405 organic chemistry
Chemistry
GC/MS
Organic Chemistry
Extraction (chemistry)
Antioxidant Activity
food and beverages
biology.organism_classification
0104 chemical sciences
010404 medicinal & biomolecular chemistry
Horticulture
Rutaceae
Gas chromatography–mass spectrometry
Citrus × sinensis
Subjects
Details
- ISSN :
- 09765026 and 0972060X
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- Journal of Essential Oil Bearing Plants
- Accession number :
- edsair.doi.dedup.....bc958f1903adb1a41d51ada963101c31