Analysis of Volatile Aroma Components in Different Parts of Shiitake Mushroom () Treated with Ultraviolet C Light-Emitting Diodes Based on Gas Chromatography-Ion Mobility Spectroscopy.

Further assessment of ultraviolet C light-emitting diode (UVC-LED) irradiation for influencing shiitake mushrooms' () volatile and sensory properties is needed. In this study, a comparison of UVC-LED irradiation treatment on the flavor profiles in various parts of shiitake mushrooms was conducted using gas chromatography-ion mobility spectrometry (GC-IMS) and sensory analysis. Sixty-three volatile compounds were identified in shiitake mushrooms.

Ginger (Zingiber officinale) extract mediated green synthesis of silver nanoparticles and evaluation of their antioxidant activity and potential catalytic reduction activities with Direct Blue 15 or Direct Orange 26.

The green synthesis of silver nanoparticles (AgNPs) using a water extract of Ginger (Zingiber officinale) root by microwave irradiation and its antibacterial activities have been reported. However, AgNPs prepared from different parts of ginger root water or ethanol extract by ultrasound synthesis and their antioxidant activity and whether the biogenic could be used to catalyze the reduction of hazardous dye are unknown. This study concentrated on the facile green synthesis of AgNPs prepared from different parts (unpeeled ginger, peeled ginger, and ginger peel) of ginger root water or ethanol extract by the ultrasound-assisted method.

Comparison of Ergosterol and Vitamin D in Mushrooms and Using Ultraviolet Irradiation Directly on Dry Powder or in Ethanol Suspension.

Vitamin D deficiency is a severe worldwide health issue. Edible mushrooms are an excellent vitamin D source and have gained popularity worldwide as a nutritional food. The objective of this study was to investigate the conversion efficiency of ergosterol to vitamin D in and mushrooms under ultraviolet (UV) irradiation directly through dry powder or in ethanol suspension (1:20 g/mL, solid to liquid ratio).

Rhizome Extract-Mediated Green Synthesis of Silver Nanoparticles and Evaluation of Their Potential Antioxidant and Catalytic Reduction Activities.

The silver nanoparticles (AgNPs) using the rhizome extract of have been reported. However, their antioxidant activity and whether the biogenic AgNPs could be used to catalyze the reduction of hazardous dye or used as fluorescence enhancers are unknown. This study focused on the facile green synthesis of silver nanoparticles using the rhizome aqueous extract of (G-AgNPs).

An effective synthesis of ursodeoxycholic acid from dehydroepiandrosterone.

A novel synthetic route of producing ursodeoxycholic acid (UDCA) was developed through multiple reactions from plant-source dehydroepiandrosterone (DHEA), with a Mistunobu reaction and regioselective allyl oxidationat as the key steps. The reaction conditions of the key allyl oxidation reaction were also investigated and optimized, including solvent, oxidant and reaction temperature. In this novel route for the preparation of UDCA, most of the reaction steps have high conversions and overall yield up to 35% for 8 steps.

Chloride intracellular channel 4 participate in the protective effect of Ginkgolide B in MPP+ injured MN9D cells: insight from proteomic analysis.

Background: Ginkgolide B (GB), the extract of leaves, has been shown to be protective against many neurological disorders, including Parkinson's disease (PD). Efforts have been made to synthesized ginkgolides analogs and derivatives with more targeted and smaller molecular weight. In the present study, four GB derivatives (GBHC-1-GBHC-4) were synthesized, and their protective roles in N-methyl-4-phenylpyridinium (MPP +) injured MN9D dopaminergic neuronal cell line were evaluated.

Design and Synthesis of Arylnaphthalene Lignan Lactone Derivatives as Potent Topoisomerase Inhibitors.

Background: Arylnaphthalene lignan lactones are a class of natural products containing the phenyl-naphthyl skeleton. Some arylnaphthalene lignan lactones have been used in clinical practice as antitumor agents, due to their cytotoxicity and inhibitory activities against DNA topoisomerase I (Topo I) and topoisomerase II (Topo II).

Objective: This study presents the design and synthesis of arylnaphthalene lignan lactones derivatives.

Ultraviolet Irradiation Increased the Concentration of Vitamin D and Decreased the Concentration of Ergosterol in Shiitake Mushroom () and Oyster Mushroom () Powder in Ethanol Suspension.

Vitamin D deficiency is a serious global health problem. Edible mushrooms are a good source of vitamin D for human health. The objective of this experiment was to investigate the efficiency of converting its precursor ergosterol to vitamin D in shiitake mushroom () and oyster mushroom () powder in ethanol suspension under ultraviolet (UV) irradiation.

The neuroprotective mechanisms of ginkgolides and bilobalide in cerebral ischemic injury: a literature review.

The incidence and mortality of strokes have increased over the past three decades in China. Ischemic strokes can cause a sequence of detrimental events in patients, including increased permeability and dysfunction of the blood-brain barrier, brain edema, metabolic disturbance, endoplasmic reticulum stress, autophagy, oxidative stress, inflammation, neuron death and apoptosis, and cognitive impairment. Thrombolysis using recombinant tissue plasminogen activator (rtPA) and mechanical embolectomy with a retrievable stent are two recognized strategies to achieve reperfusion after a stroke.

Effect of nine plant volatiles in the field on the sex pheromones of Leguminivora glycinivorella.

Attraction of the soybean pod borer, Leguminivora glycinivorella (Matsumura), an economically important pest of soybean, to nine plant volatiles, alone or combined with two kinds of synthetic sex pheromone, ((E,E)-8,10-dodecadienyl acetate (EE8,10-12:Ac), or a blend of EE8,10-12:Ac and (E)-10-dodecenyl acetate in a 10:1 ratio), was evaluated in field trapping experiments in a soybean field in Harbin, China. By themselves, the plant volatiles (dose) linalool (0.1 mg), (Z)-3-hexenyl acetate (0.

Synthesis of a new intermediate for bioactive Lamellarins.

This paper reports two methods of synthesis for 1,2,4-trimethoxy-5-(1-methyl-2-phenyl-vinyl)-benzene, which was a key intermediate to synthesize the various Lamellarins. One method is by using the Wittig-Horner reaction and another is by the Grignard reaction. By conducting contrast experiments, we got the optimal reaction parameters for high yields.