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Gaanty Pragas, Maniam and Mohd Hasbi, Ab. Rahim and M. M., Yusoff and Noor, Hindryawati and Shalizanis Mariyanti, Dora Siswanto (2015) Esterification of Palm Fatty Acid Distillate Using Organophosphonic Acid-Functionalised Rice Husk Silica. In: International Conference on Green Energy 2015 , 21-23 Sept 2015 , Florida, USA. . (Unpublished) (Unpublished)

Gaanty Pragas, Maniam and Noor, Hindryawati and Irma, Nurfitri and Intan Shafinaz, Abd Manaf and Neshabran, Ramachandran and Mohd Hasbi, Ab. Rahim (2015) Utilization of Waste Fat from Catfish (Pangasius) in Methyl Esters Preparation Using Cao Derived from Waste Marine Barnacle and Bivalve Clam as Solid Catalysts. Journal of the Taiwan Institute of Chemical Engineers, 49. pp. 58-66. ISSN 1876-1070. (Published)

Gaanty Pragas, Maniam and Neshabran, Ramachandran and Noor, Hindryawati and M. M., Yusoff (2014) Rice Husk Silica Supported Oil Palm Fruit Ash as a Catalyst in the Transesterification of Waste Frying Oil. In: 8th Malaysian Technical Universities Conference on Engineering & Technology (MUCET 2014) , 10-11 November 2014 , Mahkota Hotel Bandar Hilir Melaka. pp. 1-6.. (Unpublished) (Unpublished)

Gaanty Pragas, Maniam and Noor, Hindryawati and Irma, Nurfitri and Rajan, Jose and M. H. A., Rahim and M. M., Yusoff (2014) Ultrasound-aided In Situ Transesterification of oil Adsorbed on Decanter Cake Using Efba and Na2SiO3 as Catalysts. In: Fifth International Symposium on Energy from Biomass and WasteSan Servolo , 17-20 November 2014 , Venice, Italy. pp. 1-11.. (Published)

Gaanty Pragas, Maniam and Noor, Hindryawati and Irma, Nurfitri and Rajan, Jose and Mohd Hasbi, Ab. Rahim and Farrah Aini, Dahalan and M. M., Yusoff (2013) Decanter Cake as a Feedstock for Biodiesel Production: A First Report. Energy Conversion and Management, 76 . pp. 527-532. ISSN 0196-8904. (Published)

Gaanty Pragas, Maniam and Irma, Nurfitri and Noor, Hindryawati and M. M., Yusoff and Shangeetha, Ganesan (2013) Potential of Feedstock and Catalysts from Waste in Biodiesel Preparation: A Review. Energy Conversion and Management, 74. pp. 395-402. ISSN 0196-8904. (Published)

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Karim, Md. Rezaul and Noor, Hindryawati and Gaanty Pragas, Maniam and K. F., Chong (2013) Cooking Oil Waste Transesterification Over Alkali Metal (Li, Na, K) Impregnated with Rice Husk Silica: a Potential Heterogonous Base Catalysis. In: 4th Regional AFOB Symposium 2013 , 17-19 Januari 2013 , Chiangmai Grandview Hotel and Convention Center, Thailand. . (Unpublished) (Unpublished)

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Nurul Hajar, Embong and Noor, Hindryawati and Prakash, Bhuyar and Govindan, Natanamurugaraj and Mohd Hasbi, Ab Rahim and Gaanty Pragas, Maniam (2021) Enhanced biodiesel production via esterification of palm fatty acid distillate (PFAD) using rice husk ash (NiSO4)/SiO2 catalyst. Applied Nanoscience, 11 (6). pp. 1-9. ISSN 2190-5509 (Print); 2190-5517 (Online). (Published)

Nurul Hajar, Embong and Noor, Hindryawati and Bhuyar, Prakash and Govindan, Natanamurugaraj and Mohd Hasbi, Ab. Rahim and Gaanty Pragas, Maniam (2021) Enhanced biodiesel production via esterification of palm fatty acid distillate (PFAD) using rice husk ash (NiSO4)/SiO2 catalyst. Applied Nanoscience. pp. 1-9. ISSN 2190-5509 (Print); 2190-5517 (Online). (Published)

Nurul Aina Nasriqah, Ma’arof and Noor, Hindryawati and Siti Norhafza, Mohd Khazaai and Bhuyar, Prakash and Mohd Hasbi, Ab. Rahim and Gaanty Pragas, Maniam (2021) Exploitation of cost-effective renewable heterogeneous base catalyst from banana (Musa paradisiaca) peel for effective methyl ester production from soybean oil. Applied Nanoscience. pp. 1-12. ISSN 2190-5509 (Print); 2190-5517 (Online). (Published)

Noor, Hindryawati and Erwin, Erwin and Maniam, Gaanty Pragas (2017) Esterification of oil adsorbed on palm decanter cake into methyl ester using sulfonated rice husk ash as heterogeneous acid catalyst. Esterification of oil adsorbed on palm decanter cake into methyl ester using sulfonated rice husk ash as heterogeneous acid catalyst , 1813. ISSN 0094-243X. (Published)

Noor, Hindryawati and Gaanty Pragas, Maniam (2015) Novel Utilization of Waste Marine Sponge (Demospongiae) as a Catalyst In Ultrasound-Assisted Transesterification of Waste Cooking Oil. Ultrasonics Sonochemistry, 22. pp. 454-462. ISSN 1350-4177. (Published)

Noor, Hindryawati and Gaanty Pragas, Maniam and Karim, Md. Rezaul and K. F., Chong (2014) Transesterification of Used Cooking Oil Over Alkali Metal (Li, Na, K) Supported Rice Husk Silica as Potential Solid Base Catalyst. International Journal of Engineering Science and Technology, 17 (2). pp. 95-103. ISSN 2215-0986. (Published)