UPV Digital RepositoryUPV-DRUniversity of the Philippines Visayas
 

UPV External Publications

Permanent URI for this communityhttps://hdl.handle.net/20.500.14583/14

Browse

Filters

2024 - 20252

Settings

Start date: 2024SDG: search.filters.sdg.SDG 12 - Responsible consumption and production

Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Effect of calcium-sequestering salts and heat treatment on the rheological and textural properties of acid gels from blends of skimmed buffalo and bovine milk
    Mejares, Carolyn T.; Huppertz, Thom; Chandrapala, Jayani (Elsevier, 2024)
    The influence of adding 5 mM trisodium citrate (TSC) or disodium hydrogen phosphate (DSHP) and heat treatment (85 °C or 95 °C for 5 min) on the acid gelation properties of blends of skim buffalo and bovine milk (0:100, 25:75, 50:50, 75:25, 100:0) was investigated. Significant increases in gelation pH, final G′ values, firmness, and water-holding capacity of gels were observed with increasing proportion of buffalo skim milk and with higher heating temperature. Differences in gel firmness were linked to gel microstructure, where milk blends containing higher proportion of buffalo skim milk formed gels with denser protein network clusters. The addition of TSC or DSHP reduced the gelation pH, final G′ values and gel firmness, but increased gel water-holding capacity. These results provide a better understanding of acid gelation of buffalo and bovine milk blends which will subsequently promote the potential of using milk mixtures in modulating the gel texture.
  • No Thumbnail Available
    Item
    Structural, electronic, and optical properties of copper doped monolayer molybdenum disulfide: A density functional theory study
    Ducut, Melsa Rose D.; Rojas, Kurt Irvin M.; Bautista, Reilly V.; Arboleda, Nelson B. Jr. (Elsevier, 2025)
    We conducted first-principles calculations to investigate the effect of doping monolayer molybdenum disulfide (MoS2) with Cu in its structural, electronic, and optical properties. We found that Cu doping changes the material from an n-type semiconductor into a p-type semiconductor by shifting the Fermi energy level towards the valence band in all variations of concentration and site. The absorption coefficient, photoconductivity, and reflectivity calculations indicate that Cu-doped MoS2 is sensitive to violet light. In addition, Cu doping elevates the sensitivity of the material to low-energy light. These results show that Cu-doped MoS2 can be used in optoelectronic applications.