Lanzhen Chen

ORCID: 0000-0002-3700-6807
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About
Contact & Profiles
Research Areas
  • Bee Products Chemical Analysis
  • Insect and Pesticide Research
  • Essential Oils and Antimicrobial Activity
  • Phytochemicals and Antioxidant Activities
  • Spectroscopy and Chemometric Analyses
  • Meat and Animal Product Quality
  • GABA and Rice Research
  • Plant tissue culture and regeneration
  • Healthcare and Venom Research
  • Photosynthetic Processes and Mechanisms
  • Plant Genetic and Mutation Studies
  • Fermentation and Sensory Analysis
  • Plant and animal studies
  • Isotope Analysis in Ecology
  • Plant Gene Expression Analysis
  • Tea Polyphenols and Effects
  • Biochemical Analysis and Sensing Techniques
  • Plant Stress Responses and Tolerance
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Plant Molecular Biology Research
  • Metabolomics and Mass Spectrometry Studies
  • Synthesis and Catalytic Reactions
  • Catalytic C–H Functionalization Methods
  • Identification and Quantification in Food
  • Pesticide Residue Analysis and Safety

Institute of Apiculture Research
2014-2024

Chinese Academy of Agricultural Sciences
2014-2024

Ministry of Agriculture and Rural Affairs
2022-2024

Bee Research Institute
2012-2015

Institute of Quality Standards and Testing Technology for Agro Products
2010

Fraudulent acts regarding honey authenticity that use Apis mellifera as a substitute for cerana have garnered considerable concern in China and triggered trust crisis from consumers. In this study, untargeted metabolomics analysis was carried out based on volatile fractions A. using headspace gas chromatography–ion mobility spectrometry (HS-GC-IMS). Honey discriminated by HS-GC-IMS profiling, principal component analysis, orthogonal partial least-squares discrimination analysis. Tentative...

10.1021/acs.jafc.9b04438 article EN Journal of Agricultural and Food Chemistry 2019-10-07

Neonicotinoids are the most widely used insecticides worldwide, but there is mounting evidence demonstrating that they have adverse effects on nontarget organisms. However, little known about extent of environmental neonicotinoids contamination in China. In this study, a total 693 honey samples from across China, both Apis melifera and cerana, were analyzed to examine neonicotinoid concentrations their geographical distribution, correlation with primary plant species which was obtained....

10.1021/acs.est.9b07162 article EN Environmental Science & Technology 2020-02-24

The determination of honey authenticity is importance to ensure its quality and safety. There an urgent need effective methods detect adulterated honey. A simple, rapid, HPLC–DAD method was developed adulteration by rice syrup, using a characteristic compound from which presently difficult current analytical methods. identified as 2-acetylfuran-3-glucopyranoside (AFGP) MS NMR. Based on HPLC analyses, the average concentration AFGP 92 ± 60 mg/kg in syrup. However, not detected any natural...

10.1021/jf401912u article EN Journal of Agricultural and Food Chemistry 2013-07-11

Honey adulteration with sugar syrups is a widespread problem. Several types of have been used in honey adulteration, and there no available method that can simultaneously detect all these adulterants. In this study, we generated small-scale database containing the specific chromatographic mass spectrometry information on syrup markers developed simple, rapid, effective ultrahigh-performance liquid chromatography/quadrupole time-of-flight (UHPLC/Q-TOF-MS) for detection adulterated honey. Corn...

10.1021/acs.jafc.5b01410 article EN Journal of Agricultural and Food Chemistry 2015-07-07

The objective of this study is to test the feasibility multi-isotopic and elemental analyses combined with chemometric techniques for differentiating botanical origins major honey products in China. stable isotope compositions 57 samples from four floral China (i.e., rape honey, acacia vitex jujube honey) were analyzed using ratio mass spectrometry (IRMS) inductively coupled plasma (ICP-MS), respectively. results showed that hydrogen oxygen isotopes could be more suitable than carbon...

10.1021/acs.jafc.5b01576 article EN Journal of Agricultural and Food Chemistry 2015-05-20

Gnetum is a small, unique group of Gnetophyta with controversial phylogenetic position. G. parvifolium an important Chinese traditional medicinal plant, which rich in bioactive compounds such as flavonoids and stilbenoids. These provide significant effects, mostly antioxidant, anticancer antibacterial agents. However, the mechanisms involved biosynthesis regulation these are still unknown. In this study, we found that flavonoid stilbene accumulated at different levels various tissues...

10.3389/fpls.2016.00174 article EN cc-by Frontiers in Plant Science 2016-03-04

As a well-known animal hormone, melatonin (N-acetyl-5-methoxytryptamine) is also involved in multiple plant biological processes, especially various stress responses. Rice one of the most important crops, and taken by many people everyday from rice. However, transcriptional profiling melatonin-related genes rice largely unknown. In this study, expression patterns 11 related different periods, tissues, response to treatments were synthetically analyzed using published microarray data. These...

10.3389/fpls.2016.00676 article EN cc-by Frontiers in Plant Science 2016-05-18

γ-Aminobutyric acid (GABA) influences plant growth, but little is known about how this metabolite regulates adventitious root (AR) development. Here, we investigate the effects of GABA on ARs using poplar lines overexpressing glutamate decarboxilase 2 (GAD2) and by treating stem cuttings with exogenous or vigabatrin (VGB; a specific transaminase inhibitor). Endogenous accumulation not only inhibited AR it also suppressed delayed formation. Anatomical observations revealed that VGB treatments...

10.1093/jxb/erz520 article EN Journal of Experimental Botany 2019-11-18

A comprehensive liquid chromatography-mass spectrometry (LC-MS)-based metabolomics approach was developed to discriminate honey harvested from Apis mellifera ligustica Spinola (A. mellifera) and cerana Fabricius cerana). Based on an untargeted strategy, ultrahigh-performance chromatography electrospray ionization quadrupole orbitrap high-resolution mass (UPLC Q-Orbitrap) combined with chemometrics techniques screen identify tentative markers A. honey. In targeted analysis, a sensitive method...

10.1021/acs.jafc.1c07153 article EN Journal of Agricultural and Food Chemistry 2022-01-13

Honey has become a highly demanded product for consumers worldwide due to its unique taste and rich nutritional medicinal values. However, it remains challenging identify honey's origin as well determine authenticity. This review aims at summarizing the progress of research carried out in last decade toward discriminating honeys by using characteristic markers. Studies that illustrated melissopalynology, phytochemical substances, biomacromolecular substances honey origins are discussed....

10.1021/acsfoodscitech.1c00422 article EN ACS Food Science & Technology 2022-01-17
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