A5056400449- Spectroscopy and Chemometric Analyses
- Natural product bioactivities and synthesis
- Remote Sensing in Agriculture
- Leaf Properties and Growth Measurement
- Chemical synthesis and alkaloids
- Alkaloids: synthesis and pharmacology
- Phytochemistry and Biological Activities
- Phytochemicals and Antioxidant Activities
- Concrete Corrosion and Durability
- Cholinesterase and Neurodegenerative Diseases
- Greenhouse Technology and Climate Control
- Phytochemical Studies and Bioactivities
- Concrete Properties and Behavior
- Concrete and Cement Materials Research
- Essential Oils and Antimicrobial Activity
- Water Quality Monitoring and Analysis
- Natural Antidiabetic Agents Studies
- Ginseng Biological Effects and Applications
- Pharmacological Effects of Natural Compounds
- Pesticide Residue Analysis and Safety
- Genomics, phytochemicals, and oxidative stress
- Nanowire Synthesis and Applications
- Medicinal Plants and Neuroprotection
- Silymarin and Mushroom Poisoning
- Toxin Mechanisms and Immunotoxins
Vietnam Academy of Science and Technology
2021-2024
National University of Civil Engineering
2021-2023
Hanoi University
2023
Ton Duc Thang University
2018-2021
Chungnam National University
2013-2017
Laboratoire Matériaux et Durabilité des Constructions
2015
Objective of the study was to compare reflectance spectrum in blade and vein parts cabbage kale leaves. A total 6 leaves were taken from a plant factory Chungnam National University, Korea. Spectra data collected with UV/VIS/NIR spectrometer (model: USB2000, Ocean Optics, FL, USA) wavelength region 190 - 1130 nm. Median filter smoothing method selected preprocess obtained spectra data. We computed difference by subtraction averaged individual spectrum. To estimate correlation at different...
Faced with increasing environmental pollution due to traffic concentration in big cities, Vietnam, as well many countries worldwide, has encouraged its people use environmentally-friendly vehicles. Because the transport mode is dominated by two-wheelers (i.e., motorcycles and mopeds) (2Ws), electrifying 2Ws potential for significant air reductions an alternative gasoline-powered vehicles Vietnam. Therefore, there recently been trend of shifting from traditional gasoline two-wheeler electric...
Abstract Eight compounds, including 20( R )‐ginsenoside Rg 3 ( 1 ), Ginsenoside Rd 2 ginsenosides Re 4 β ‐sitosterol 5 daucosterol 6 stigmasterol 7 and stigmasterol‐3‐ O ‐β‐glucoside 8 ) were isolated from the Panax ginseng sprouts cultivated in Vietnam. Their structures elucidated by H, 13 C NMR, MS spectroscopic techniques compared with previous publication. In addition, their inhibitory activity on NO production cytotoxic effects against human embryonic kidney cells (HEK‐293A)...
Gnetum formosum Markgr., a member of the Gnetaceae family, is distributed in Vietnam. This plant remains botanical enigma with an unexplored diversity chemical constituents and pharmacological effects. In this study, two new steroidal saponins, namely gnetumosides A (1) B (2), were isolated from aerial parts G. formosum. Their structures elucidated using spectroscopic techniques, including high-resolution electrospray ionization mass spectrometry (HR-ESI-MS) NMR, along hydrolysis comparison...
The bitter melon, Momordica charantia L., was once an important food and medicinal herb. Various studies have focused on the potential treatment of stomach disease with M. its anti-diabetic properties. However, very little is known about specific compounds responsible for anti-inflammatory activities. In addition, in vitro inhibitory effect pro-inflammatory cytokine production by lipopolysaccharide (LPS)-stimulated bone marrow-derived dendritic cells (BMDCs) has not been reported....
The spectral reflectance technique for the quantification of functional components was applied in different studies crops, but related research on kale leaves is limited. This study conducted to estimate glucosinolate and anthocyanin cultivated a plant factory based diffuse spectroscopy through regression methods. Kale grown under treatments. After specific periods transplantation, leaf samples were collected, spectra measured immediately from nine points each leaf. same freeze-dried stored...
Alkaloids are among the most important and best-known secondary metabolites as sources of new drugs from medicinal plants marine organisms. A phytochemical investigation whole plant Crinum asiaticum var. sinicum resulted in isolation seven alkaloids (1–7), including one dimeric compound, bis-(-)-8-demethylmaritidine (1). Their structures were elucidated using NMR HR-ESI-MS. The absolute configuration compound 1 was established by circular dichroism spectroscopy. All isolated compounds...
Physalis peruviana L. (Solanaceae) has been used in tropical and subtropical countries of the world as medicinal fruit trees. In this study, a new withanolide named withaperuvin O (1) seven known ones, including physalolactone B-3-O-β-D-glucopyranoside (2), J (3), physapruin A (4), physaperuvin G (5), (6), C (7) 28-hydroxywithaperuvin (8), were isolated from whole plants P. peruviana. Their structures elucidated based on extensive spectroscopic analyses NMR HR-ESI-MS. The bioactivities these...
Helicteres hirsuta Lour. is a traditional Vietnamese medicine for treating chronic liver diseases such as cirrhosis and cancer. Many in vitro vivo experiments have demonstrated that the extracts isolated compounds from H. diverse pharmacological activities, including antioxidant, anti-inflammatory, anti-cancer effects. However, hepatoprotective effects not been reported until now. Therefore, methanolic ethanolic of aerial part L. (HHM HHE-1/1) were examined on fibrosis induced by carbon...
Phytochemical investigation of the whole plants Vernonia gratiosa Hance. led in isolation and identification two new stigmastane-type steroidal glucosides (1-2), namely vernogratiosides A (1), B (2). Their chemical structures were fully elucidated based on 1 D/2D NMR spectroscopic, HR-ESI-MS data analyses, by producing derivatives reactions. The binding potential isolated compounds to replicase protein - main protease SARS-CoV-2 examined using molecular docking simulations. Our results show...
Abstract BACKGROUND In recent years, protected crop production using plant factories to produce high‐value crops with greater functional components has become more popular in many countries. The quantification of the components, however, is mainly conducted by laboratory analyses, which are both time‐ and labor‐consuming. present study aimed investigate potential a non‐destructive diffuse reflectance spectroscopy technique for estimating (i.e. glucosinolates, amino acids, sugars carotenoids)...
In this study, a rapid and non-destructive detection model for pesticide residues on leafy vegetables was presented using developed portable spectrometer. VIS/NIR spectra of three vegetable samples, including lettuce, oriental mustard, bok choy, were analyzed at the range 380 – 840 nm. Stepwise multiple linear regression (SMLR) models based chemical reference measurements spectral information leaf samples after performing pre-processing method. Furthermore, data acquisition interface by...
Objective of this study was to investigate effects pre-processing method and number sampling leaves on stability the reflectance measurement for Chinese cabbage kale leaves. were transplanted cultivated in a plant factory. Leaf samples collected at 4 weeks after transplanting seedlings. Spectra data with an UV/VIS/NIR spectrometer wavelength region from 190 1130 nm. All (mature young leaves) measured 9 12 points blade part upper area leaves, respectively. To reduce spectral noise, raw...
Damage in reinforced concrete structures is frequently caused by reinforcement corrosion due to carbonation. Although a wide range of literature contributed the carbonation consisting experimental investigations and numerical simulations, research work on complete model for prediction with integrated climatic variables (e.g., temperature, relative humidity) still challenge. The present paper aims propose an advanced simulate penetration carbon dioxide moisture, diffusion calcium ions, heat...
ISHS International Symposium on New Technologies for Environment Control, Energy-Saving and Crop Production in Greenhouse Plant Factory - Greensys 2013 CORRELATION BETWEEN GLUCOSINOLATE CONTENT AND SPECTRAL REFLECTANCE OF CABBAGE LEAVES USING A SPECTROMETER
This paper presents the design, construction of an IoT greenhouse solar dryer for semi-dried jerky. In dryer, heated air is controlled automatically by based system, and at same time, absorbs energy directly through polycarbonate transparent walls roof. The results showed that was a good jerky after drying into ensured food safety with non-detected total aerobic organisms, heavy metal, bacteria. performance test temperature humidity process were collected system.