Zhimao Chao

ORCID: 0000-0002-6208-6116
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About
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Research Areas
  • Seed and Plant Biochemistry
  • Advances in Cucurbitaceae Research
  • Natural product bioactivities and synthesis
  • Phytochemicals and Antioxidant Activities
  • Chromatography in Natural Products
  • Food Quality and Safety Studies
  • Plant biochemistry and biosynthesis
  • Traditional Chinese Medicine Analysis
  • Morinda citrifolia extract uses
  • Botanical Studies and Applications
  • Phytochemistry and biological activity of medicinal plants
  • Pharmacological Effects of Natural Compounds
  • Ziziphus Jujuba Studies and Applications
  • Advanced Glycation End Products research
  • Plant Gene Expression Analysis
  • Bee Products Chemical Analysis
  • Fungal Biology and Applications
  • Medicinal Plant Pharmacodynamics Research
  • Phytochemical and Pharmacological Studies
  • Microbial Metabolites in Food Biotechnology
  • Plant Physiology and Cultivation Studies
  • Natural Antidiabetic Agents Studies
  • Ginseng Biological Effects and Applications
  • Nuts composition and effects
  • Phytochemistry and Biological Activities

Chinese Academy of Medical Sciences & Peking Union Medical College
2013-2025

Yunnan Botanee Biotechnology Group Co.
2025

Agricultural Product Processing Research Institute
2019

China Academy of Chinese Medical Sciences
2017

Sichuan Academy of Traditional Chinese Medicine
1990-2004

Institute of Chinese Materia Medica
1990-2004

Tokyo University of Pharmacy and Life Sciences
1997

Honeysuckle (the dried flower bud or opening of Lonicera japonica Thunb.), a medicinal and edible substance, has is greatly popular among consumers for its remarkable health effects, such as antioxidant, antibacterial, anti-inflammatory effects. However, due to the influences processing methods, storage conditions, other factors, honeysuckles show different colors which can directly reflect quality price on market. In order comprehensively compare colors, 55 batches honeysuckle samples were...

10.3390/foods12163126 article EN cc-by Foods 2023-08-20

Objectives: Ziziphi spinosae semen (ZSS), an edible and medicinal substance, was easily infested by Plodia interpunctella (P. interpunctella) during storage. However, there no identification method for insect-infested ZSS based on its chemical composition. Therefore, the characteristic compounds in before after being P. were discovered comparison of volatile organic (VOCs), untargeted metabolomics, other quality characters. Methods: Color, total flavonoid content (TFC), main active compound...

10.3390/metabo15030188 article EN cc-by Metabolites 2025-03-11

Qingpi, the dried immature pericarp of Citrus reticulata Blanco, is a commonly used medicinal food with some health-promoting benefits. In general, it essential that Qingpi be stored for period time, but there are no reports about number storage years needed to obtain best quality Qingpi. Our aim was determine time by studying physicochemical properties and metabolite changes in product from 1 5 years. As result, color became darker during storage. Both levels three flavonoids (hesperidin,...

10.3390/foods12030463 article EN cc-by Foods 2023-01-19

The differences in metabolites male and female individuals of dioecious Morus alba L. (Moraceae) are usually ignored lack study. In the present study, 58 leaves 61 stem barks from were analyzed by untargeted metabolomics via headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) coupled with chemometrics, including principal component analysis (PCA) orthogonal partial least squares-discriminant (OPLS-DA). A total 66 44 identified barks, respectively. Four...

10.3390/metabo12020106 article EN cc-by Metabolites 2022-01-24

The steaming process is one of traditional Chinese medicine's processing approaches for many herbs. A new HPLC peak was found in the root Polygonum multiflorum Thunb. (PM) after steaming. 2,3-dihydro-3,5-dihydroxy-6-methyl-4(H)-pyran-4-one (DDMP) and 5-hydroxymethyl furfural (5-HMF) were confirmed peak. Additionally, two other compounds, butanedioic acid 3,5-dihydroxy-2-methyl- 4(H)-pyran-4-one (hydroxymaltol), isolated processed PM. An increase DDMP concentration observed during first 24 h...

10.1055/s-0028-1088349 article EN Planta Medica 2008-11-25

Semi-preparative and preparative high-speed counter-current chromatography (HSCCC) were successfully used for isolation of glycosides from 50% ethanol extract the dried barks Ilex rotunda Thunb. (Aquifoliaceae) by using a two-phase solvent system composed ethyl acetate-n-butanol-water (1:6:7, v/v/v). From 1.0 g extract, syringaresinol 4',4"-di-o-β-d-glucopyranoside (I, 20.2 mg),, syringin (II, 56.8 mg), sinapaldehyde glucoside (III, 26.2 4'-o-β-d-glucopyranoside (IV, 20.4 pedunculoside (V,...

10.1080/10826076.2013.832297 article EN Journal of Liquid Chromatography &amp Related Technologies 2013-10-31

Near infrared (NIR) spectroscopy with chemometric techniques was applied to discriminate the geographical origins of crude drugs (i.e., dried ripe fruits Trichosanthes kirilowii) and prepared slices Trichosanthis Fructus in this work. The drug samples (120 batches) from four growing regions Shandong, Shanxi, Hebei, Henan Provinces) were collected, dried, used slice (30 purchased different stores. raw NIR spectra acquired preprocessed multiplicative scatter correction (MSC). Principal...

10.3390/molecules24081550 article EN cc-by Molecules 2019-04-19

The root of Polygonum multiflorum Thunb. (Heshouwu in Chinese) is one the most popular herbs used traditional Chinese medicine (TCM). However, after steam processing (Zhi-heshouwu Chinese), known to have different properties and medicinal values compared with Heshouwu. Eleven volatile Maillard reaction products were identified extract Zhi-heshouwu, but not that new four furanones, two furans, nitrogen compounds, pyran, alcohol sulfur compound. antioxidant activities between extracts from...

10.1177/1934578x1100600114 article EN Natural Product Communications 2011-01-01

Pedunculoside and syringin are two bioactive compounds in herbal tea Chinese drug Jiubiying, the dried barks of Ilex rotunda Thunb. In present study, enrichment purification pedunculoside were investigated on macroporous resins. The evaluation results performance adsorption characteristics eight resins indicated that SP825 was most suitable for separation syringin. Based series experiments separation, dynamic adsorption, desorption column resin, optimal conditions determined as follows:...

10.1080/10826076.2012.749499 article EN Journal of Liquid Chromatography &amp Related Technologies 2013-12-11

Abstract A high‐performance liquid chromatography (HPLC) fingerprint method with multivariate statistical analyses was applied to discriminate the male and female barks of Populus tomentosa for first time. The samples 11 13 mature P. were collected in Beijing. chemical methanol extract established by HPLC diode array detector (DAD). principal component analysis (PCA), hierarchical clustering (HCA), supervised orthogonal partial least squares discriminant (OPLS‐DA) based on area common peaks...

10.1002/pld3.311 article EN cc-by-nc-nd Plant Direct 2021-03-01

Herpetospermum pedunculosum (Ser.) C. B. Clarke (Family Cucurbitaceae) is a dioecious plant and has been used as traditional Tibetan medicine for the treatment of hepatobiliary diseases. The component, content, difference in volatile compounds female male buds H. were explored by using headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) technology multivariate statistical analysis. results showed that isoamyl alcohol was main compound both its content...

10.3390/molecules27041288 article EN cc-by Molecules 2022-02-14

To comprehensively evaluate the quality of medicinal and edible Ziziphi Spinosae Semen (ZSS, dried ripe seeds Ziziphus jujuba var. spinosa) before after rancidity during storage, some indicators including traditional sensory properties, physicochemical characteristics, volatile compounds were analyzed. As a result, compared with normal samples, rancid samples ZSS produced darker color, bitter taste, an irritating odor, increased moisture content, electrical conductivity, fatty oil acid...

10.3390/foods11152320 article EN cc-by Foods 2022-08-03

Hawthorn, the sliced and dried ripe fruits of Crataegus pinnatifida Bge. Var. Major N. E. Br. (Rosaceae), is an edible medicinal substance with a variety health-promoting benefits. Hawthorn needs to be stored in warehouses after harvesting meet people's perennial demand. However, it easily infested by insects Plodia interpunctella Tribolium castaneum during storage, which inevitably leads poor quality causes adverse effects on health. So far, there has been no report insect-infested...

10.1016/j.crfs.2023.100616 article EN cc-by-nc-nd Current Research in Food Science 2023-01-01

Introduction The buds of Lonicera japonica Thunb. var. chinensis (Wats.) Bak, commonly named red honeysuckle, have attracted attention because their bright colors. However, owing to the lack systematic studies, potential applications honeysuckle are not clear, and its development utilization been well known. Methods In this study, compared with L. (honeysuckle), were explored based on biological activities, bio-active components, sensory flavor combined widely targeted metabolomics. Results...

10.3389/fpls.2024.1418957 article EN cc-by Frontiers in Plant Science 2024-09-26

The differences of volatile components in male (MFB) and female flower buds (FFB) Populus × tomentosa were analysed compared by HS-SPME with GC-MS for the first time. A total 34 compounds identified. Two clusters clearly divided into hierarchical clustering analysis. Both showed methyl salicylate (22.83 24.09%, respectively) 2-hydroxy-benzaldehyde (10.05 12.41%, as main constituents. content 2-cyclohexen-1-one, benzyl benzoate, benzoate FFB was remarkably higher than MFB. In contrast, ethyl...

10.1080/14786419.2018.1483929 article EN Natural Product Research 2018-06-13

Trichosanthes anguina L. (family Cucurbitaceae) is a monoecious and diclinous plant that can be consumed as vegetable has anti-inflammatory antioxidant effects. The chemical composition content of volatile compounds in female male buds T. were explored by headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) technology combined with multivariate statistical analysis. results showed the was different between buds....

10.3390/molecules27207021 article EN cc-by Molecules 2022-10-18

A new phenolic glycoside named salicyltomenside (1), with five similar compounds, salicyltremuloidin (2), tremuloidin (3), isograndidentatin (4), siebolside B (5), and salicin (6) were isolated from Populus tomentosa Carr.Additionally, (2) was obtained the plant for first time.Structure of compound determined using spectroscopic methods including ESI-MS 1D-and 2D-NMR.Others elucidated through 1 H 13 C NMR spectra comparison literature data.Notably, (1) structural isomers.

10.25135/rnp.82.18.03.257 article EN Records of Natural Products 2018-12-02

During the storage process, Chinese medicinal materials are susceptible to insect infestation due their own nature and external factors. Infestation by insects can have varying impacts on materials. In mild cases, it affects appearance reduces consumer purchasing power, while in severe quality, value, introduces impurities such as bodies, excrement, secretions, resulting significant contamination of This study reviewed rele-vant factors influencing compositional changes that occur after...

10.19540/j.cnki.cjcmm.20230529.101 article EN PubMed 2023-10-01

Abstract Polysaccharides were purified from a high molecular weight complex of Achyranthes bidentata Bl. (Fam. Amaranthaceae) root by speed countercurrent chromatography (HSCCC) using cross‐axis coil planet centrifuge (X‐axis CPC). The purification was performed with an aqueous polymer two‐phase system composed 12.5% (w/w) polyethylene glycol (PEG) 1000, 8% potassium dihydrogen phosphate, and dipotassium hydrogen phosphate buffer at pH 6.8. preparative separation the crude sample (2 g)...

10.1081/jlc-120021758 article EN Journal of Liquid Chromatography &amp Related Technologies 2003-01-01
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