Nik Muhammad Azhar Nik Daud
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Preferred name
Nik Muhammad Azhar Nik Daud
Official Name
Nik Muhammad Azhar , Nik Daud
Alternative Name
Daud, N. M.A.N.
Main Affiliation
Scopus Author ID
57196038196
Researcher ID
ABF-8598-2020
AAR-3768-2021

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  • Publication
    Optimization of Rice Bran Protein Extraction Using Choline Chloride-Glycerol Deep Eutectic Solvent Using Response Surface Methodology (RSM)
    ( 2023-01-01)
    Kamal Ramlee K.A.F.
    ;
    Muhammad Nor I.N.
    ;
    Mohd Sharizan Md Sarip
    ;
    Mohd Zainudin M.A.
    ;
    Amirul Ridzuan Abu Bakar
    ;
    Nawawi M.A.
    ;
    Nik Muhammad Azhar Nik Daud
    A by-product of the rice milling process, rice bran contains four different types of protein: albumin, globulin, prolamin, and glutelin. These proteins are widely known for being hypoallergenic and having nutritional benefits. In order to increase the value of rice bran, the protein was extracted via deep eutectic solvent (DES). Response Surface Methodology (RSM) was used to assess the impact of three operational conditions, including temperature, extraction duration, and the ratio of rice bran to DES, on the yield of rice bran protein after the precipitates were converted into powder form by freeze drying. At optimal working conditions, which were 60 Â°C, 2 h, and a 1:9 ratio of rice bran to DES, the method’s results showed that the highest extracted protein of rice bran was 16.254%. Several techniques, including Fourier transform infrared spectroscopy (FTIR) and Kjeldahl studies, have been used to demonstrate the presence of protein in rice bran powder. In the rice bran protein (RBP), amine (1640.70 cm−1), alcohol (3229.74 cm−1), and alkane (2925.37 cm−1) were all detected using FTIR analysis. Furthermore, Kjeldahl analysis revealed that 15.61% of the rice bran powder’s protein content is present. In conclusion, rice bran’s value as a functional meal can be increased by adding protein through the use of a deep eutectic solvent called green solvent.
      3  39
  • Publication
    Prediction of phase equilibria in ternary diagram for system consist of Hot Compressed Water (HCW) with crude palm oil (CPO) and others minor component using thermodynamic model
    ( 2024-05-10)
    Mohd Sharizan Md Sarip
    ;
    Nik Muhammad Azhar Nik Daud
    ;
    Mohd Asraf Mohd Zainudin
    ;
    Idham Z.
    ;
    Adilah Anuar
    ;
    Mohd Aminudin Jamlos
    ;
    Amirul Ridzuan Abu Bakar
    Knowledge on phase equilibria for the separation process are important. It helps to improve the extraction efficiency through parameter optimization. Nowadays, hot compressed water extraction (HCWE) is getting the interest for the crude palm oil (CPO) extraction. Therefore, the phase equilibria of system consist of Hot compressed water (HCW) and CPO component are crucial. In this study, prediction of phase equilibria in ternary diagram for system consist of HCW with CPO and others minor component was conducted using thermodynamic model. The prediction was conducted using modified UNIFAC. CPO and other minor components namely palmitic acid which represent FFA, β-carotene, α-tocopherol, α-tocotrienol and α-tocotrieno was totally insoluble in HCW. The solubility of HCW in CPO was effect by the temperature and concentration of palmitic acid, β-carotene and α-tocopherol. However, the effect of these minor component concentration was inrrelevant since the concentration of these component was lower in the CPO for less than 1%. The solubility of HCW in CPO need to be monitored to avoid the hydrolysis which can deteriorate the CPO and degrade its quality.
      45  1