Saleha Shamsudin
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Saleha Shamsudin
Official Name
Saleha, Shamsudin
Alternative Name
Shamsudin, S.
Shamsudin, Saleha
Shamsudin, S. N.A.
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Scopus Author ID
55329189000
Researcher ID
DQR-6096-2022

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  • Publication
    Effects of steam pretreated rice biomass condensate containing soluble solid inhibitors on disruption of Pomacea Canaliculata egg
    ( 2023-07)
    Nor Azahanim Khamis
    ;
    Saleha Shamsudin
    ;
    Muhammad Hafiz Zabidi
    ;
    Khairul Farihan Kasim
    ;
    Ezyana Kamal Bahrin
    Pomacea canaliculata is an invasive freshwater snail species that has become a serious pest of rice in irrigation and paddy fields and is popularly known as the golden apple snail. They are species that are capable of surviving and spreading rapidly, causing significant changes in the ecosystem. The application of natural by-products of a physicochemical method of biomass steam pre-treated condensate is one option for disrupting Pomacea Canaliculata egg. This experiment was conducted to investigate the feasibility of steam pre-treated rice biomass condensate which contained soluble solid inhibitors as a biopesticide to eradicate Pomacea canaliculata. Rice straw, rice husk, and a combination of rice straw and rice husk (1:1) were pre-treated by the saturated steam pre-treatment in a batch reactor at high temperatures (190°C and 210°C) for 10 min. The steam condensate produced from this system was analysed for major degraded products or inhibitors such as furfural, hydroxymethylfurfural (HMF), and phenol. The steam condensate which contained soluble solid inhibitors was then analysed for solubility test on P. canaliculata eggs. The effect of soluble solid inhibitors on the eggs was structurally examined by using a scanning electron microscope (SEM). The results revealed that rice husk which was pre-treated at 210°C reflected the highest contents of furfural (0.300 g/L), HMF (1.670 g/L), and phenol (0.087 g/L). However, the combination of rice biomass sample (1:1) condensate at 210°C demonstrated the greatest solubility percentage (11.51%) when treated to the eggs P. canaliculata eggs. The image of the egg structure examined by SEM clearly displayed the fractures forming on the cuticle layer of the eggs. SEM results demonstrated that the condensate from saturated steam pre-treated rice biomass has the possibility to be used as a biopesticide to disrupt the eggs and eventually could prevent the snails’ invasion.
  • Publication
    Comparative study of various pretreatment on sugar production from mixed rice biomass
    (IOP Publishing, 2020)
    Lau Cheng Yee
    ;
    Saleha Shamsudin
    ;
    Khairul Farihan Kasim
    The aim of this work was to study the effectiveness of pretreatment methods by developing a comparative study of diluted acetic acid and hydrothermal pretreatment on reducing sugar production and inhibitors formation (Furfural) from the mixed rice biomass. Diluted acetic acid and hydrothermal pretreatment were carried out over a range of temperature (150 – 190 ºC) within 30 minutes to observe the reducing sugar production and inhibitor formation (Furfural). Seamen Model was used to obtain the rate of reaction in depolymerisation of lignocellulosic biomass. This experiment data were fitted the first-order kinetic model to obtain the reaction rate constant of production and degradation of sugar. In addition, Arrhenius equation was used to determine the activation energy of the reaction. From the result, it showed that the diluted acetic acid pretreatment had higher rate on reducing sugar production and inhibitor formation than the hydrothermal pretreatment. The activation energy for the formation sugar in hydrothermal pretreatment is found 29.1 kJ/mol which is higher than acetic acid pretreatment (23.9 kJ/mol).
      15  1
  • Publication
    Effects of steam pretreated rice biomass condensate containing soluble solid Inhibitors on disruption of Pomacea Canaliculata Egg
    ( 2023-07)
    Nor Azahanim Khamis
    ;
    Saleha Shamsudin
    ;
    Muhammad Hafiz Zabidi
    ;
    Khairul Farihan Kasim
    ;
    Ezyana Kamal Bahrin
    Pomacea canaliculatais an invasive freshwater snail species that has become a serious pest of rice in irrigation and paddy fields and is popularly known as the golden apple snail. They are species that arecapable of surviving and spreading rapidly, causing significant changes in the ecosystem. The application of natural by-products of a physicochemical method of biomass steam pre-treated condensate is one option for disrupting Pomacea Canaliculata egg. This experiment was conducted to investigate the feasibility of steam pre-treated rice biomass condensate which contained soluble solid inhibitors as a biopesticide to eradicate Pomacea canaliculata. Rice straw, rice husk, and a combination of rice straw and rice husk (1:1) were pre-treated by the saturated steam pre-treatment in a batch reactor at high temperatures (190°C and 210°C) for 10 min. The steam condensate produced from this system was analysed for major degraded products or inhibitors such as furfural, hydroxymethylfurfural (HMF), and phenol. The steam condensate which contained soluble solid inhibitors was then analysed for solubility test on P. canaliculata eggs. The effect of soluble solid inhibitors on the eggs was structurally examined by using a scanning electron microscope (SEM). The resultsrevealed that rice husk which was pre-treated at 210°C reflected the highest contents of furfural (0.300 g/L), HMF (1.670 g/L), and phenol (0.087 g/L). However, the combination of rice biomass sample (1:1) condensate at 210°C demonstrated the greatest solubility percentage (11.51%) when treated to the eggs P. canaliculata eggs. The image of the egg structure examined by SEM clearly displayed the fractures forming on the cuticle layer of the eggs. SEM results demonstrated that the condensate from saturated steam pre-treated rice biomass has the possibility to be used as a biopesticide to disrupt the eggs and eventually could prevent the snails’ invasion.
      7  33