Drying methods affects physicochemical characteristics, essential oil yield and volatile composition of turmeric (Curcuma longa L.)

2021 ◽  
pp. 100357
Author(s):  
Asit Ray ◽  
Swagat Mohanty ◽  
Sudipta Jena ◽  
Ambika Sahoo ◽  
Laxmikanta Acharya ◽  
...  
Keyword(s):  
Essential Oil ◽  
Curcuma Longa ◽  
Physicochemical Characteristics ◽  
Oil Yield ◽  
Drying Methods ◽  
Volatile Composition ◽  
Essential Oil Yield

scholarly journals Effect of Solid-State Fermentation on the essential oil yield of Curcuma longa residues

2021 ◽  
Author(s):  
Alexandre Teplaira Boum ◽  
Sylvie Nguikwie Kwanga ◽  
Doriane Tegoundio ◽  
Felix Adje Anoh
Keyword(s):  
Solid State ◽  
Essential Oil ◽  
Solid State Fermentation ◽  
Plant Material ◽  
Room Temperature ◽  
Curcuma Longa ◽  
Solid Wastes ◽  
Oil Yield ◽  
Experimental Conditions ◽  
Essential Oil Yield

Abstract The solid waste of Curcuma longa rhizomes generated after its cold juice process making is mostly unused and discarded even though they can contain essential oil. Conventional techniques such as hydrodistillation can be used to extract essential oil, but this generally results in low essential oil yield and inefficient extraction time. Solid-state fermentation as a pretreatment of distillation could improve the yield of essential oil. In this study, we evaluated the effect of solid state fermentation on the yield of extraction of Curcuma longa solid wastes essential oil. The solid-state fermentation was carried out naturally without any addition of inoculum and the extraction was performed by hydrodistillation. Under experimental conditions at room temperature and anaerobically in the dark, the treatment of 7 days of solid state fermentation followed by 2h of hydrodistillation provided the highest yield of 1.21% as compared to non-fermented of 0.35% and of 0.96% relative to the raw plant material representing an increase of 71% and 21% respectively. A

scholarly journals The influence of NaCl-induced stress on the growth and volatile profile of Curcuma longa L. leaves

2015 ◽  
Vol 13 (1) ◽  
pp. 59-66
Author(s):  
Shweta Singh ◽  
Mahesh Pal ◽  
Anil Kumar ◽  
S.K. Sharma ◽  
Shri Tewari
Keyword(s):  
Essential Oil ◽  
Curcuma Longa ◽  
Dry Weight ◽  
Oil Yield ◽  
Leaf Biomass ◽  
Volatile Profile ◽  
Volatile Constituents ◽  
Induced Stress ◽  
Total Oil ◽  
Essential Oil Yield

Herein, for the first time, the influence of salt-induced stress on the vegetative growth and the volatile profile of Curcuma longa L. leaves was investigated. C. longa was grown in a quarter-strength Hoagland?s solution to which NaCl was added to give four final concentrations: 0 (control), 25, 50 or 75 mM NaCl. In the case of the plants grown in the 25 mM NaCl medium, leaf biomass production was the same as in the control experiment, but it decreased significantly at higher salinities (50 mM and 75 mM NaCl). The volatile constituents of the leaves were isolated by hydrodistillation and analyzed by GC and GC/MS. The essential-oil yield (calculated on the basis of dry weight) was 2.0% for the control plants, and increased at low-to-medium NaCl concentrations (2.5% and 2.8% for the 25 and 50 mM NaCl media, respectively). Contrary to that, the essential-oil yield decreased (1.6%) in the case of plants grown in the 75 mM NaCl medium. The major volatile constituents of C. longa leaves were identified as: ?-phellandrene (38.3-42.4%; more than one third of the total oil), terpinene-4-ol (5.6-10.5%), geraniol (5.6-7.9%), p-cymene (5.2-9.6%), ?-thujene (4.5-7.3%), ?-sesquiphellandrene (4.8-6.8%), ?-myrcene (2.6-3.8%) and ?-bisabolol (1.5-2.7%).

Essential Oil from Vietnamese Mandarin (Citrus reticulata Blanco) Using Hydrodistillation Extraction Process and Identification of it’s Components

2019 ◽  
Vol 298 ◽  
pp. 100-105 ◽  
Author(s):  
Thien Hien Tran ◽  
Ngo Thi Quyen ◽  
Huynh Thi Kieu Linh ◽  
Thuy Trang Le Ngoc ◽  
Phan Minh Quan ◽  
...  
Keyword(s):  
Essential Oil ◽  
Extraction Method ◽  
Physicochemical Characteristics ◽  
Extraction Process ◽  
Oil Yield ◽  
Solvent Ratio ◽  
Citrus Reticulata ◽  
Bioactive Components ◽  
Mandarin Peel ◽  
Essential Oil Yield

In this research, the hydrodistillation extraction method has been adopted to extract the essential oil from Vietnamese Mandarin (Citrus reticulata Blanco) peel purchased from Thu Duc, Vietnam. Various extraction conditions influencing the oil yield were investigated. The obtained essential oil was evaluated for physicochemical characteristics. GC–MS studied the chemical composition of the oil. The results showed that with the ground Mandarin peel, the ratio of peel to solvent ratio 1:4 (g/mL), extraction time of 150 minutes at a temperature of 110-120°C, the highest essential oil yield was attained at 5%. Bioactive components found at high content included limonene (97.655%), were followed by β-Myrcene (1.395%), 1R-α-Pinene (0.561%), L-β-pinene (0.264%), Sabinene (0.126%).

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