Flavor Characteristics and Stereochemistry of the Volatile Constituents of Greater Galangal (Alpinia Galanga Willd.)

Kubota, Kikue; Someya, Yuki; Kurobayashi, Yoshiko; Kobayashi, Akio

doi:10.1007/978-1-4615-4783-9_9

Cited by 8 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar to the results of this study, Kubota et al [37] carried out the extraction of the volatile compounds of Alpinia galanga Willd by steam distillation at reduced pressure (20 Torr), reporting an increase in the amounts of oxygenated monoterpenes to the detriment of the most volatile (hydrocarbon monoterpenes) and less volatile (sesquiterpenes) fractions. Moreover, the same authors also cited that there was an increase in the aroma of the obtained material compared to the extraction at atmospheric pressure.…”

Section: Effect Of the Absolute Pressure Of The System On Essential O...supporting

confidence: 77%

Influence of the Absolute Pressure of the Extraction System on the Yield and Composition of Corymbia citriodora (Hook.) K.D.Hill and L.A.S.Johnson Leaf Essential Oil Extracted by Steam Distillation

et al. 2023

View full text Add to dashboard Cite

This study aimed to evaluate the extraction of Corymbia citriodora (Hook.) K.D.Hill and L.A.S.Johnson essential oil by steam distillation under reduced pressure. Yield and composition of the essential oils obtained at different system pressures were analyzed. System pressure had a significant influence on essential oil yield, resulting in a reduction of 78.6% when the pressure was reduced from 690 Torr to 240 Torr. There were also changes in essential oil composition, with an increase in citronellol content (oxygenated monoterpene). However, the major compound (citronellal) remained at a high content in all tests. Regarding the extracted mass of the major compounds (citronellal, citronellol), there was a significant reduction for all when the system pressure was reduced. Although the reduction in the pressure of the system caused a reduction in oil yield, it was possible to carry out the steps of extraction and purification of the major compound simultaneously. Reduced pressure extraction may decrease process time, increasing its efficiency and reducing costs in the extraction of essential oils.

show abstract

Section: Effect Of the Absolute Pressure Of The System On Essential O...supporting

confidence: 77%

Influence of the Absolute Pressure of the Extraction System on the Yield and Composition of Corymbia citriodora (Hook.) K.D.Hill and L.A.S.Johnson Leaf Essential Oil Extracted by Steam Distillation

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Sensory Evaluation. It was reported that the optical isomer of galangal acetate with (R)-configuration has no odor by GC sniffing (7). The odor characters of the purified optical isomers (>99%) were evaluated by flavorists at Givaudan.…”

Section: Resultsmentioning

confidence: 99%

Identification of Dihydrogalangal Acetate in Galangal [Alpinia galangal (L.) Swartz] Extracts

Yang¹,

Rohr²,

Jordan³

2009

J. Agric. Food Chem.

View full text Add to dashboard Cite

Dihydrogalangal acetate has been discovered for the first time in galangal roots [Alpinia galangal (L.) Swartz]. The compound has a taste sensation similar to galangal acetatethe pungent principle of galangalbut it is more stable in food and beverage applications. Therefore, dihydrogalangal acetate provides many advantages as a flavor ingredient for alcohol enhancement and taste modification. Dihydrogalangal acetate is present in approximately 0.0005% of fresh roots and in about 0.004% of dried roots. (S)-Dihydrogalangal acetate is found as the main optical isomer in galangal roots (98%), while its minor (R)-isomer is less abundant (2%). Enantiomers of galangal acetate and dihydrogalangal acetate were separated and evaluated by sensory analysis. (R)-Galangal acetate has a very faint woody and sweet aroma, and (R)-dihydrogalangal acetate is almost odorless, while (S)-galangal acetate has strong and (S)-dihydrogalangal acetate has weak pungent and woody notes. Although the aroma characters of these optical isomers are different, taste sensations were found to have no significant differences among galangal acetate, dihydrogalangal acetate, and their optical isomers.

show abstract

“…Many articles have been published which summarizes constituents of AG. 14,15,16 A detailed overview of chemical constituents of AG in last 6 decades is given by Ma et al 17 Few of the constituents are as follows-flavonoids, phenylpropanoids, lignans, terpenes etc. Most frequently detected compounds are galangin, kaempferol, 1ʹ-acetoxychavicol acetate (ACA), galanganols 1,8-cineole, eucalyptol.…”

Section: Taxonomy Hierarchymentioning

confidence: 99%

Recent Findings on Alpinia Galanga (L.) Wild for the Treatment of Arthritis Part-1

Raut¹,

Shaji²

2022

IJCRR

View full text Add to dashboard Cite

Arthritic inflammation of joints affects people of all age groups. The treatment is a challenge as arthritis is a complex disease and evolves over years. Patients often have to take medicines for the rest of their life. Commonly prescribed medicines like analgesics, glucocorticoids and non-steroidal anti-inflammatory drugs have side effects. The new disease-modifying medicines are costly. People in the healthcare system are assessing the dynamics of complementary and alternative medicines. One such remedy is Alpinia galanga (AG) of Zingiberaceae family. It is characterized by the presence of rhizome, wide leaves and terminal inflorescence. The references for its medicinal uses are found in traditional medicines. It is cultivated in tropical regions of south east Asia. Its rhizome is highly aromatic and most frequently used as a food and medicine. The various extracts of AG are prepared by the researchers and studied for its phytoconstituents and pharmacological activities. Clinical, in vitro, in vivo and in silico experimentation techniques are used to validate the claims for various therapeutic activities. This article focuses on reviewing the literature to ascertain the anti-arthritic potential of AG. The article has been divided in 2 parts and includes analgesic, anti-arthritic, anti-inflammatory, antioxidant, other therapeutic effects as well as safety and toxicity of AG.

show abstract

Flavor Characteristics and Stereochemistry of the Volatile Constituents of Greater Galangal (Alpinia Galanga Willd.)

Cited by 8 publications

References 16 publications

Influence of the Absolute Pressure of the Extraction System on the Yield and Composition of Corymbia citriodora (Hook.) K.D.Hill and L.A.S.Johnson Leaf Essential Oil Extracted by Steam Distillation

Influence of the Absolute Pressure of the Extraction System on the Yield and Composition of Corymbia citriodora (Hook.) K.D.Hill and L.A.S.Johnson Leaf Essential Oil Extracted by Steam Distillation

Identification of Dihydrogalangal Acetate in Galangal [Alpinia galangal (L.) Swartz] Extracts

Recent Findings on Alpinia Galanga (L.) Wild for the Treatment of Arthritis Part-1

Contact Info

Product

Resources

About