SCOPUS 2015-2019

Permanent URI for this collection

https://repository.dusit.ac.th//handle/123456789/4434

Browse

Browsing SCOPUS 2015-2019 by Subject "Adsorption"

Now showing 1 - 2 of 2
  • Default Image
    Item
    Cleanup of trimethylamine (fishy odor) from contaminated air by various species of Sansevieria spp. and their leaf materials
    (Taylor and Francis Inc., 2016) Phattara Boraphech; Parinda Suksabye; Nipaporn Kulinfra; Wascharangkoon Kongsang; Paitip Thiravetyan; P. Thiravetyan; School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand; email: paitip.thi@kmutt.ac.th
    Removal of trimethylamine (TMA) by 10 different living Sansevieria spp. and their dried leaf materials was studied. The results showed that living Sansevieria kirkii was the most effective plant while Sansevieria masoniana was the least effective in TMA removal. Two major pathways were involved in stomata opening and epicuticular wax on the leaf surface. In the presence of TMA, the stomata opening in Sansevieria spp. was induced, which enhanced TMA removal under light conditions. Dried leaf powders of Sansevieria spp. adsorbed TMA through their waxes. Therefore, both living and non-living Sansevieria spp. can be effectively used for removal of TMA. � 2016 Taylor & Francis Group, LLC.
  • Default Image
    Item
    Utilization of agricultural residues: De-oiled organic rice bran as adsorbent of moisturizers for cosmetic products
    (Chemical Publishing Co., 2015) P. Dechprasittichok; C. Sontag; J. Tongtan; S. Luachan; P. Dechprasittichok; Department of Chemical Technology, Suan Dusit Rajabhat University, Bangkok, Thailand; email: pornpassanan_dac@dusit.ac.th
    The objective of this research is to study the adsorption of two types of moisturizers in cosmetic, urea and glycerin, by de-oiled organic rice bran. Urea and glycerin are moisturizers which can enhances the water-binding capacity on the skin. The samples of the de-oiled organic rice bran were obtained from Surin province of Thailand. The samples were pretreated with sodium hydroxide. In equilibrium time experiments, 0.5 g of dried de-oiled organic rice bran were immersed into 50 mL of urea or glycerin 1 % wt. solutions and shaken for various times followed by the determination of remaining moisturizer in the solution. To find the adsorption capacity of moisturizers by de-oiled organic rice bran, 0.5 g of dried de-oiled organic rice bran were immersed into 50 mL of urea or glycerin solutions with different concentration levels (1, 2, 3, 4, 5, 10, 15 and 30 g 100 mL1). The solutions were shaken for 1,440 min. The equilibrium time for urea and glycerin was achieved at 40 and 60 min., respectively. The de-oiled organic rice bran could adsorb higher amounts of urea than glycerin. The adsorption isotherm could be well described by the Freundlich isotherm model. The findings of this study would be beneficial to evaluate the suitability and efficiency of adsorption of moisturizers by de-oiled organic rice bran for future application such as body scrub.