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Article

Optimization of Microwave-Assisted Extraction of Essential Oil from Vietnamese Basil (Ocimum basilicum L.) Using Response Surface Methodology

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NTT Hi-Tech Institute, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Vietnam
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Faculty of Chemical and Food Technology, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Vietnam
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Department of Chemical Engineering, HCMC University of Technology, VNU-HCM, Ho Chi Minh City 700000, Vietnam
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Institute of Applied Materials Science, Vietnam Academy of Science and Technology, Ho Chi Minh City 700000, Vietnam
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Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi 10072, Vietnam
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Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi 10072, Vietnam
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Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi 10072, Vietnam
*
Author to whom correspondence should be addressed.
Processes 2018, 6(11), 206; https://doi.org/10.3390/pr6110206
Received: 27 September 2018 / Revised: 16 October 2018 / Accepted: 23 October 2018 / Published: 25 October 2018
(This article belongs to the Special Issue Microwave Applications in Chemical Engineering)
Basil plant is a common source for linalool and estragole. However, it has been showed that the chemical composition of basil varies considerably depending on many factors including method of extraction, cultivar of the plant or geographical location. In this study, we attempted to extract essential oil from Vietnamese basil and analyze the chemical composition of the obtained oil using gas chromatography–mass spectrometry (GC-MS). The extraction method of choice was microwave-assisted hydro-distillation (MAHD) and the process was optimized with Response Surface Methodology (RSM) with regard to four experimental parameters including raw material size, raw material to water ratio, extraction time and microwave power. The results showed that ground basil leaves, when extracted with optimal conditions of water-to-material ratio of 3.2:1, extraction time of 97 (min) and microwave power of 430 (W), gave the actual essential oil yield of 0.6%. Regarding ANOVA results of the quadratic model, high determination coefficient (R2 = 0.9077), significant F-value of 10.92 and the p-value of less than 0.05 indicate that this model is significant between experimental and predicted variables, and should be fixed. In addition, GC-MS analysis revealed that major components of Vietnamese Basil were Estragole (87.869%), α-Bergamotene (2.922%), τ-Cadinol (2.770%), and Linalool (1.347%). View Full-Text
Keywords: Basil (Ocimum basilicum L.); microwave-assisted extraction; response surface methodology; yield and composition of essential oils Basil (Ocimum basilicum L.); microwave-assisted extraction; response surface methodology; yield and composition of essential oils
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MDPI and ACS Style

Tran, T.H.; Nguyen, H.H.H.; Nguyen, D.C.; Nguyen, T.Q.; Tan, H.; Nhan, L.T.H.; Nguyen, D.H.; Tran, L.D.; Do, S.T.; Nguyen, T.D. Optimization of Microwave-Assisted Extraction of Essential Oil from Vietnamese Basil (Ocimum basilicum L.) Using Response Surface Methodology. Processes 2018, 6, 206. https://doi.org/10.3390/pr6110206

AMA Style

Tran TH, Nguyen HHH, Nguyen DC, Nguyen TQ, Tan H, Nhan LTH, Nguyen DH, Tran LD, Do ST, Nguyen TD. Optimization of Microwave-Assisted Extraction of Essential Oil from Vietnamese Basil (Ocimum basilicum L.) Using Response Surface Methodology. Processes. 2018; 6(11):206. https://doi.org/10.3390/pr6110206

Chicago/Turabian Style

Tran, Thien H., Huynh H.H. Nguyen, Duy C. Nguyen, Thanh Q. Nguyen, Huynh Tan, Le T.H. Nhan, Dai H. Nguyen, Lam D. Tran, Sy T. Do, and Trinh D. Nguyen. 2018. "Optimization of Microwave-Assisted Extraction of Essential Oil from Vietnamese Basil (Ocimum basilicum L.) Using Response Surface Methodology" Processes 6, no. 11: 206. https://doi.org/10.3390/pr6110206

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