Comprehensive investigation on non-volatile and volatile flavor compounds in the and by UPLC-MS/MS and GC × GC-TOF-MS.

and are the main cultivars of morel. However, the key compounds affecting their flavors (taste and odor) are currently unknown. Here, an ultra performance tandem mass spectrometry combined with two-dimensional gas chromatography-time-of-flight mass spectrometry method was used to detect and relatively quantify the metabolites in both morel cultivars.

Characteristic fingerprints and comparison of volatile flavor compounds in Morchella sextelata under different drying methods.

Morchella sextelata is a precious and popular commercial edible fungus that was developed recently in China. This research aimed to characterize the volatile profiles of M. sextelata under three dehydration methods (freeze, hot air, and natural air drying).

Ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry based untargeted metabolomics to reveal the characteristics of from different drying methods.

is a highly valuable and economically important edible fungus whose nutrition and flavor components may vary based on drying methods. Herein, an untargeted ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS) metabolomics method combined with multivariate analysis was first performed to characterize the metabolomics profiles of upon different drying treatments, viz., coal burning drying (CD), electrothermal hot air drying (ED), and freeze drying (FD).

Sesquiterpene Lactams and Lactones With Antioxidant Potentials From Discovered by Molecular Networking Strategy.

rhizome (called Bái-zhú in China) has a long history as a functional food and herbal medicine in East Asia, especially China. Sesquiterpenoids are one of the main active compounds of rhizome. This study aimed to explore the unknown sesquiterpenoids of rhizome using a molecular networking strategy.

Metabolomics Analysis of sp. From Different Geographical Origins of China Using UPLC-Q-TOF-MS.

The morel mushroom ( sp.) is reputed as one of the most highly-prized edible fungi with mounting cultivated area as well as commercial popularity in China. To date, optimized methods specific for quality evaluation and constituent analysis of sp.

Photocatalytic Degradation of Deoxynivalenol Using Cerium Doped Titanium Dioxide under Ultraviolet Light Irradiation.

Deoxynivalenol (DON) is a major mycotoxin with high toxicity that often contaminates grains, foods and feeds. The traditional approaches for DON removal are difficult to meet industry and agriculture demands due to the high stability of the DON molecule. Therefore, there is an urgent need to develop green and effective strategies for DON degradation.

Combination of untargeted metabolomics approach and molecular networking analysis to identify unique natural components in wild Morchella sp. by UPLC-Q-TOF-MS.

Morchella sp. is a typical edible fungus. However, its unique natural products, especially bioactive composition, are rarely reported.

Four new sesquiterpene lactones from Atractylodes macrocephala and their CREB agonistic activities.

One new bisesquiterpenoid, biepiasreorlid II (1), three new sesquiterpene lactones 8α-methoxy-epiasterolid (4), 3β-acetoxyl-8-epiasterolid (5), and 3β-acetoxyl-atractylenolide I (6), along with five known analogues (2-3 and 7-9), were obtained from rhizome of Atractylodes macrocephala Koidz. All structures were assigned on the basis of detailed spectroscopic analyses. The absolute configuration of 1 was established by the analysis of single-crystal X-ray diffraction with Ga Kα radiation, and 4-6 were elucidated by TDDFT-ECD calculations.

Acylated Aminooligosaccharides with Inhibitory Effects against α-Amylase from Streptomyces sp. HO1518.

Five new acylated aminooligosaccharides (⁻), together with one known related analogue (), were isolated from sp. HO1518. Their structure was identified by extensive spectroscopic analysis, including 1D and 2D NMR data and high resolution electrospray ionization mass spectrometry (HRESIMS), and by comparison with those reported in the literature.

Briarane diterpenes from the South China Sea gorgonian coral, Junceella gemmacea.

Four new briarane diterpenoids, junceellolides M-P (1-4), were isolated together with seven known analogs (5-11) from the South China Sea gorgonian, Junceella gemmacea. The structures of these compounds were elucidated by detailed spectroscopic analysis and comparison with the reported data. The absolute configuration of compounds 1-3 were determined based on an ECD experiment, while the absolute configuration of compound 4 was genetically determined.