Variability of Volatile Compounds in the Medicinal Plant Dendrobium officinale from Different Regions

Abstract

Dendrobium officinale Kimura et Migo, a rare and traditional medicinal plant, contains many nutrients such as polysaccharides, alkaloids, amino acids and so on. Different growth environment and intraspecific hybridization of different germplasm resources lead to large differences in the yield, quality and medicinal value of D. officinale. Here, the volatile compounds of D. officinale from four producing regions (Zhejiang, Fujian, Yunnan and Jiangxi) were analyzed to provide a certain reference value for the selection of a specific medicinal component in D. officinale breeding. Fresh stems of D. officinale germplasm resources were collected, and the chemical constituents were determined by gas chromatography-mass spectrometry. A total of 101 volatile compounds were identified, of which esters and alcohols accounted for 23 and 22. Hexacosane is the highest relative content of all volatile components. The highest content of hexacosane was observed in YA1 from Yunnan was 34.41%, and the lowest (23.41%) in JA1 from Jiangxi. Moreover, 5-10 unique substances were determined in different regions. A total of 17 medicinal components were detected, and three unique medicinal components were detected only in YA1, revealing that YA1 can provide raw materials for the application of specific medicinal substances extraction. A total of four toxic components were detected, but no toxic components were detected in JA1 from Jiangxi, suggested that the germplasm resources from Jiangxi could be exploited efficiently for breeding superior D. officinale specimens. The results provide a theoretical basis for the collection, protection and utilization of D. officinale germplasm resources in different regions.

Green synthesis of gold nanoparticles from Dendrobium officinale and its anticancer effect on liver cancer

“…Studies on the components of DO identified polysaccharides, alkaloids, amino acids, esters, alcohols, flavonoids, glycosides, etc. (Zhou et al., 2018 ; Hu et al., 2020 ). In this study, the FTIR analysis of Do-AuNPs showed a peak at 1640.98 cm −1 , 1731.92 cm −1 , and 2928 cm −1 , which not only indicated the existence of esters and aromatic compounds, but also supported the possible underlying mechanisms of DO extract to reduce chloroauric acid to synthesize Do-AuNPs.…”

Green synthesized gold nanoparticles from Pseudobulbus Cremastrae seu Pleiones show efficacy against hepatic carcinoma potentially through immunoregulation

“…The C-H stretching vibration contributed to the absorption peak at 2927.88 cm −1 and the C = O stretching vibration might account for the peak at 1632.7 cm −1 . These two peaks, as well as the peak at 1729.47 cm −1 suggested that it was the endogenous reducibility of PCSP that enabled the reduction of HAuCl 4 to PCSP-AuNPs (Hu et al., 2020 ; Zhang et al., 2021 ). The result for EDAX is displayed in Figure 3F , showing the presence of gold ions in the PCSP-AuNPs, which indeed validated the efficient formation of PCSP-AuNPs.…”

Chemical Composition of Essential Oil from Flowers of Five Fragrant Dendrobium (Orchidaceae)

“…The scent recognized for both D. chrysotoxum and D. wardianum could be due to the high presence of esters in floral VOCs that we detected during our analyses. Esters are produced by the reaction of alcohols with organic acids; they typically have fruity smells and are indeed among the molecules responsible for the odors of many fruits [ 43 ]. High content of volatile esters has been linked with the strong flavor of the “snow chrysanthemum” cultivar of Coreopsis by Kim et al (2020) [ 44 ].…”