Phytochemical profiles, and antimicrobial and antioxidant activities of greater galangal [Alpinia galanga (Linn.) Swartz.] flowers

•Chemical composition in galangal flower was more diverse than that in rhizome.•Galangal flower possessed 3-fold higher total phenolic contents than rhizomes.•α-Humulane and pentadecane were major volatile compounds in galangal flower.•1′-Acetoxyeugenol acetate was the richest phytochemical in galan...

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Bibliographic Details
Published in:Food chemistry 2018-07, Vol.255, p.300-308
Main Authors: Tang, Xixuan, Xu, Changmou, Yagiz, Yavuz, Simonne, Amarat, Marshall, Maurice R.
Format: Article
Language:English
Subjects:
Alpinia - chemistry
Anti-Infective Agents - analysis
Antimicrobial
Antioxidants - analysis
Flowers - chemistry
Galangal
Listeria monocytogenes - drug effects
MIC50
Phenols - analysis
Phytochemicals - analysis
Polyphenols
Rhizome - chemistry
Staphylococcus aureus
Staphylococcus aureus - drug effects
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Summary:•Chemical composition in galangal flower was more diverse than that in rhizome.•Galangal flower possessed 3-fold higher total phenolic contents than rhizomes.•α-Humulane and pentadecane were major volatile compounds in galangal flower.•1′-Acetoxyeugenol acetate was the richest phytochemical in galangal flower.•1′-Acetoxyeugenol acetate in galangal exhibited the strongest antimicrobial activity. Previous studies of galangal (Alpinia galanga) have focussed mostly on rhizomes but seldom on flowers. A comprehensive look at galangal flowers could reveal additional benefits. The chemical composition of galangal flowers was significantly (p 
ISSN:0308-8146
1873-7072
DOI:10.1016/j.foodchem.2018.02.027