Extraction and evaluation of the main pungent principles of solar dried West Indian ginger (Zingiber officinale Roscoe) rhizome

Balladin, Derrick A; Headley, O.; Chang-Yen, Iván; McGaw, D.R.

doi:10.1016/s0960-1481(97)00033-5

Cited by 12 publications

(5 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A variety of solvents such as methanol (16, 17), ethanol (18,25), DCM (23), acetone (25), and pressurized CO 2 (19,20) have been used for ginger extraction. Extraction methods to obtain bioactive compounds from ginger also include reflux (16), sonication (18,26), and high-pressure Soxhlet extraction (19,26) etc.…”

Section: Resultsmentioning

confidence: 99%

“…Many qualitative and/or quantitative methods have been reported for analysis of fresh ( 16 – 18 , 23 ) and dried ginger ( 24 ). A variety of solvents such as methanol ( 16 , 17 ), ethanol ( 18 , 25 ), DCM ( 23 ), acetone ( 25 ), and pressurized CO 2 ( 19 , 20 ) have been used for ginger extraction. Extraction methods to obtain bioactive compounds from ginger also include reflux ( 16 ), sonication ( 18 , 26 ), and high-pressure Soxhlet extraction ( 19 , 26 ) etc.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Ok¹,

Jeong²

2012

JFN

View full text Add to dashboard Cite

6-Shogaol, a dehydrated form of 6-gingerol, is a minor component in ginger (Zingiber officinale Roscoe) and has recently been reported to have more potent bioactivity than 6-gingerol. Based on the thermal instability of gingerols (their dehydration to corresponding shogaols at high temperature), we aimed to develop an optimal process to maximize the 6-shogaol content during ginger extraction by modulating temperature and pH. Fresh gingers were dried under various conditions: freeze-, room temperature (RT)- or convection oven-drying at 60 or 80°C, and extracted by 95% ethanol at RT, 60 or 80°C. The content of 6-shogaol was augmented by increasing both drying and extraction temperatures. The highest production of 6-shogaol was achieved at 80°C extraction after drying at the same temperature and the content of 6-shogaol was about 7-fold compared to the lowest producing process by freezing and extraction at RT. Adjustment of pH (pH 1, 4, 7 and 10) for the 6-shogaol-richest extract (dried and extracted both at 80°C) also affected the chemical composition of ginger and the yield of 6-shogaol was maximized at the most acidic condition of pH 1. Taken together, the current study shows for the first time that a maximized production of 6-shogaol can be achieved during practical drying and extraction process of ginger by increasing both drying and extracting temperatures. Adjustment of pH to extraction solvent with strong acid also helps increase the production of 6-shogaol. Our data could be usefully employed in the fields of food processing as well as nutraceutical industry.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Ok¹,

Jeong²

2012

JFN

View full text Add to dashboard Cite

show abstract

“…A frequency of >20 kHz used for extraction has high overall efficiency and high yields of the product. Thermal stability and rapid extraction time prevents the bioactive compounds from degrading (Balladin et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

Antibacterial potential of extracts of the roots of Zingiber officinale against bacterial strains commonly associated with nosocomial infections

Abuga¹,

Gaobotse²

2019

J. Med. Plants Res.

View full text Add to dashboard Cite

Zingiber officinale, commonly known as ginger, has been used as a medicinal plant for decades for medical and culinary purposes. This study aimed to determine the antimicrobial potential of ginger root extracts using the Kirby-Bayer agar diffusion method to compare the zones of inhibition of the extracts to those of synthetic antibiotics against five clinical bacterial pathogens (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Enterobacter aerogenes and Klebsiella pneumoniae). Ginger extracts showed more antimicrobial activity against the five test organisms compared to the synthetic antibiotics. The least resistant bacterium was S. aureus while the remaining four bacterial strains were strongly resistant to most of the antibiotics. Antimicrobial activity of ginger root extracts at various concentrations revealed that E. coli had the lowest concentration (1.2 mg/ml) in 20 mg/ml while the highest concentration (9.1 mg/ml) was observed for S. aureus in 75 mg/ml. Phytochemical screening of the ginger root extracts revealed the presence of all the tested secondary metabolites (saponins, tannin, flavonoids, glycoside, terpenoids and alkaloids). A number of phytochemicals present in ginger were identified to be possibly responsible for the antibacterial activity of ginger roots. These could be used independently or in combination with synthetic antibiotics to create more efficient antibiotics. Findings of this study can contribute to ongoing research towards identifying alternative treatment of nosocomial infections that eliminate the use of antibiotics. With these findings, scientists could be employed in the health sector to create antibiotics that are not resisted by pathogens that cause infections in health care facilities.

show abstract

“…The steam distillation, solvent extraction, ultrasound‐assisted extraction and other modern extraction techniques are still the most common methods for the production of ginger extract. However, these extract methods are associated with some drawbacks such as residual organic solvents, high equipment cost and high operating temperature which results in the degradative changes of the major compounds . The supercritical CO 2 fluid extraction has been studied extensively as an alternative to conventional methods of natural plant extraction.…”

Section: Introductionmentioning

confidence: 99%

“…However, these extract methods are associated with some drawbacks such as residual organic solvents, high equipment cost and high operating temperature which results in the degradative changes of the major compounds. [9][10][11][12][13] The supercritical CO 2 fluid extraction has been studied extensively as an alternative to conventional methods of natural plant extraction. Various researchers have produced high-yield ginger extract which contains a maximum amount of volatile oil and oleoresin by supercritical CO 2 fluid extraction.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and Cytotoxic Activities of Distillates Purified by Means of Molecular Distillation from Ginger Extract Obtained with Supercritical CO₂ Fluid

Wang

Zhao

Lü

et al. 2019

Chemistry & Biodiversity

View full text Add to dashboard Cite

The ginger extract obtained with supercritical CO2 fluid was purified by molecular distillation (MD), and the chemical compositions, antioxidant and cytotoxic activities of ginger extract and its distillates were investigated. Analysis revealed that the ginger extract was rich in terpene hydrocarbons, along with oxygenated terpenes and other non‐volatile compounds. The MD distillates were prepared in a series of stages and the active compounds like terpenes and gingerols could be separated by MD. The major compounds of the distillates purified by MD at 40 °C, 80 Pa and 60 °C, 80 Pa were terpene hydrocarbons. Additional distillates obtained by MD at 80 °C, 80 Pa and 100 °C, 60 Pa were predominated by terpene hydrocarbons and oxygenated terpenes. Until the operating conditions of MD reached 150 °C and 2 Pa, some non‐volatile compounds were concentrated in the final distillate. Moreover, antioxidant activities and the cytotoxic effects on three human cancer cells in final MD distillate were superior to other extracts, and this phenomenon could be mainly supported by the phenols. The MD could be used to prepare ginger distillates with better antioxidant and cytotoxic activities.

show abstract

Extraction and evaluation of the main pungent principles of solar dried West Indian ginger (Zingiber officinale Roscoe) rhizome

Cited by 12 publications

References 3 publications

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Antibacterial potential of extracts of the roots of Zingiber officinale against bacterial strains commonly associated with nosocomial infections

Antioxidant and Cytotoxic Activities of Distillates Purified by Means of Molecular Distillation from Ginger Extract Obtained with Supercritical CO₂ Fluid

Contact Info

Product

Resources

About

Extraction and evaluation of the main pungent principles of solar dried West Indian ginger (Zingiber officinale Roscoe) rhizome

Cited by 12 publications

References 3 publications

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Optimization of Extraction Conditions for the 6-Shogaol-rich Extract from Ginger (Zingiber officinale Roscoe)

Antibacterial potential of extracts of the roots of Zingiber officinale against bacterial strains commonly associated with nosocomial infections

Antioxidant and Cytotoxic Activities of Distillates Purified by Means of Molecular Distillation from Ginger Extract Obtained with Supercritical CO2 Fluid

Contact Info

Product

Resources

About

Antioxidant and Cytotoxic Activities of Distillates Purified by Means of Molecular Distillation from Ginger Extract Obtained with Supercritical CO₂ Fluid