Lim J, Nguyen TTH, Pal K, Gil Kang C, Park C, Kim SW, Kim D. Phytochemical properties and functional characteristics of wild turmeric (
Curcuma aromatica) fermented with
Rhizopus oligosporus.
Food Chem X 2022;
13:100198. [PMID:
35499023 PMCID:
PMC9039939 DOI:
10.1016/j.fochx.2021.100198]
[Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/19/2021] [Accepted: 12/23/2021] [Indexed: 12/03/2022] Open
Abstract
Wild turmeric (Curcuma aromatica) was fermented with R. oligosporus.
Curcuminoid fermented for 5 days and phenolic compound of all fermented wild turmeric increased.
The l-carnitine content of fermented wild turmeric was newly synthesized.
The antioxidant activities were enhanced 1.47-fold after fermentation for 3 days.
Anti-inflammatory, anti-melanogenic, and anti-obesity effects improved with fermentation.
This study investigated the effect of solid-state fermentation of wild turmeric (Curcuma aromatica) with Rhizopus oligosporus, a common fungus found in fermented soy tempeh, on phytochemical and biological properties. Ultra-performance liquid chromatography–tandem mass spectrometry showed that fermented wild turmeric has higher concentrations of curcumin, demethoxycurcumin, bisdemethoxycurcumin, phenolic compounds and total flavonoid-curcuminoid after fermentation for 1-, 3-, and 5-day relative to non-fermented turmeric. The l-carnitine content reached 242 µg g−1 extract after fermentation for 7-day. Wild turmeric had 1.47- and 2.25-fold increases in ORAC and FRAP, respectively, after 3-day fermentation. The inhibitory effects of fermented wild turmeric on lipid accumulation from 3T3-L1 cells, nitric oxide production from lipopolysaccharide-stimulated RAW264.7 murine macrophages, and melanin formation by B16F10 mouse melanoma cells with α-MSH increased 1.08-, 1.44-, and 1.52-fold, respectively, after 3-day fermentation. Based on these results, fermented wild turmeric product can be used as a functional ingredient in the cosmeceutical and nutraceutical industries.
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