Zhaohui Zhang

ORCID: 0000-0003-2350-0019
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Research Areas
  • Protein Hydrolysis and Bioactive Peptides
  • Meat and Animal Product Quality
  • Seaweed-derived Bioactive Compounds
  • Collagen: Extraction and Characterization
  • Skin Protection and Aging
  • Biocrusts and Microbial Ecology
  • Enzyme Production and Characterization
  • Echinoderm biology and ecology
  • Algal biology and biofuel production
  • Aquaculture Nutrition and Growth
  • Photodynamic Therapy Research Studies
  • Marine Bivalve and Aquaculture Studies
  • Food Quality and Safety Studies
  • Biochemical Analysis and Sensing Techniques
  • Microbial Metabolites in Food Biotechnology
  • Enzyme Catalysis and Immobilization
  • Polysaccharides Composition and Applications
  • Porphyrin and Phthalocyanine Chemistry
  • Polysaccharides and Plant Cell Walls
  • Insect Utilization and Effects
  • Pineapple and bromelain studies
  • Antioxidant Activity and Oxidative Stress
  • Calcium Carbonate Crystallization and Inhibition
  • Food Chemistry and Fat Analysis
  • Mercury impact and mitigation studies

Ocean University of China
2014-2024

China Light Industry Press (China)
2024

Tokyo University of Marine Science and Technology
2003-2005

Abstract BACKGROUND Dietary mineral deficiency, hypertension and diabetes have become serious human health problems. approaches are increasingly being investigated to address these issues. Identification of food‐derived biological peptides has an important approach control such diseases. Peptides generated from aquatic byproducts been shown possess activities. RESULTS Significantly higher copper‐chelating activity was observed on simulated hydrolysis intact collagen. The collagen hydrolysate...

10.1002/jsfa.6854 article EN Journal of the Science of Food and Agriculture 2014-08-01

Calcium binding peptides from Pacific cod (Gadus macrocephalus) bone have attracted attention due to their potential effects on health. In this study, calcium (CBP) were prepared by trypsin and neutral protease. Ultraviolet spectra, circular dichroism (CD), Fourier transform infrared spectroscopy (FTIR) revealed that carboxyl amino groups in CBP could bind Ca2+, form the peptide-calcium complex (CBP-Ca). Single-pass intestinal perfusion (SPIP) experiments indicated absorption was...

10.3390/nu10091325 article EN Nutrients 2018-09-18

Summary This study obtained an anchovy flavourful fish sauce by a bioprocess of aerobic fermentation with Aspergillus oryzae OAY1 in period time as short 3 days. Amino nitrogen the increased to 7.35 mg mL −1 optimisation response surface methodology (RSM). Results chemical analysis showed that amino nitrogen, hydrolysis degree, reducing sugar and total acids all increased, along enhanced antioxidant activity. With regard biogenic amines, most tested amines decreased after fermentation....

10.1111/ijfs.12981 article EN International Journal of Food Science & Technology 2015-11-14

The objective of this research was to extract and prepare mycosporine-like amino acids (MAAs) investigate the mechanism by which they act against UV-induced skin photoaging in Institute Cancer Research (ICR ) mice. MAAs such as porphyra-334 shinorine were extracted from Porphyra yezoensis, separated, purified using column chromatography with SA-2 cation exchange resin. effects on activity endogenous antioxidant enzymes, namely total superoxide dismutase (T-SOD), glutathione peroxidase...

10.3390/md17080470 article EN cc-by Marine Drugs 2019-08-14

HSC (sea cucumbers treated by high pressure steam) were easy to degrade during storage, even if microorganism and endogenous enzyme inactivated. To explore the softening mechanism of HSC, packaged samples stored at 37C for 33 days. The hardness value decreased sharply from 374.60 35.00 gf in days, as well springiness, cohesiveness, chewiness restorability. proportion transverse relaxation time (T23) increased 0.841 0.917 24 indicating that free water ascended significantly. Nuclear magnetic...

10.1111/jfpp.12479 article EN Journal of Food Processing and Preservation 2015-03-27

In this study, chitosanase cloning from Streptomyces albolongus was fermented and purified by a Ni-NTA column. Fe3O4-SiO2 magnetite nanoparticles (MNPs) were synthesized the co-precipitation method coating with silica via sol-gel reaction then amino functioned treating 3-aminopropyltriethoxysilane. Chitosanases immobilized onto surface of MNPs covalent bonding (MNPs@chitosanase). Transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FT–IR), magnetic measurements...

10.3390/catal8090401 article EN Catalysts 2018-09-18

This research was performed to explore the protective effect of cod skin collagen peptides (CCP) on gastric ulcer induced by acetic acid. The CCP were fractionated into low molecular (LMCCP, Mw < 3 kDa) and high (HMCCP, > kDa). In HMCCP LMCCP, glycine accounted for about one-third total amino acids without cysteine tryptophan, hydrophobic 50%. After 21 d treatment (60 or 300 mg/kg, p.o./daily), healing effects acid-induced ulcers evaluated macroscopic measure, microscopic immune...

10.1111/1750-3841.13332 article EN Journal of Food Science 2016-05-24

ABSTRACT Gelatin extracted from Pacific cod skin was hydrolysed with serials of protease. Then, the effects gelatin and polypeptides on melanogenesis antioxidant were assessed using B16 melanoma cell reactive oxygen species scavenging ability. Polypeptides showed better properties superoxide anions hydroxyl radical in vitro than gelatin. PEP1 (2–6 kDa) exhibited highest inhibition tyrosinase activity without affecting growth. (100 µg/mL) significantly reduced melanin content to 60.5% control...

10.1111/j.1745-4514.2010.00437.x article EN Journal of Food Biochemistry 2011-06-24

Astaxanthin is a type of carotenoid widely used as powerful antioxidant and colourant in aquaculture the poultry industry. Production astaxanthin by yeast Xanthophyllomyces dendrorhous has attracted increasing attention due to high cell density low requirements water land compared photoautotrophic algae. Currently, regulatory mechanisms synthesis X. remain obscure. In this study, we obtained yellow mutant Atmospheric Room Temperature Plasma (ARTP) mutagenesis sequenced its genome. We then...

10.1111/1751-7915.14115 article EN cc-by-nc-nd Microbial Biotechnology 2022-07-13

Changes in tissue structure and rheological properties of sea cucumber meat during different heating temperature were studied. Tissue was observed using an optical microscope scanning electron micrograph, its characteristic values (Wm, Dm, Rm, C*) enumerated image processing analysis technique. Rheological (E0, τ1, η1, rupture strength) Texture profile (TPA) parameters obtained by stress-relaxation experiment texture experiment. The results indicated that the heated samples had greatly...

10.5897/ijfa12.027 article EN International Journal of Fisheries and Aquaculture 2012-11-30
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