Article Per Year (5 Year)
p-Index From 2021 - 2026
1.463
P-Index
This Author published in this journals
All Journal Reaktor International Journal of Renewable Energy Development Jurnal Teknik ITS IPTEK Journal of Proceedings Series Jurnal IPTEK REACTOR : Journal of Research On Chemistry And Engineering Sewagati
Siti Zullaikah
Departemen Teknik Kimia, Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : IPTEK Journal of Proceedings Series

 1 
Subcritical Water Extraction of Phenolic Compounds from Moringa Oleifera Leaf Siti Zullaikah; Irfan Saputra; Ghuzrina Prihandini; M. Rachimoellah
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.397

Abstract

Moringa oleifera leaf is a good source of phenolic compounds that are reported to exhibit antioxidant activity both in vitro and in vivo. This study investigated the extraction of phenolic compounds from Moringa oleifera leaf using subcritical water. Experiments were performed in a batch stainless steel reactor at temperature ranging from 100 to 300oC at residence time of 5 to 20 min. Subcritical water extraction resulted the highest yield of product, total phenolic compounds and antioxidant activity at temperature of 200oC at residence time of 15 minutes. The yield of product, total phenolic compounds and antioxidant activity obtained were 30.661%, 48.733 mg tannat acids/ g dry powder of extract and 45.863 mg ascorbic acid/L, respectively. Subcritical water at 200°C and 15 min might be a good substitute to organic solvents such as ethanol to obtain phenolic compounds from Moringa oleifera leaf.
An Efficient Method for the Production of Biodiesel from Rice Bran Siti Zullaikah; Yulia T. Rakhadima; M. Rachimoellah; Tri Widjaja; Sumarno Sumarno
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.321

Abstract

A modified in situ esterification was employed for the economic competitiveness of biodiesel production from rice bran.  The effects of methanol to rice bran ratio, acid catalysts, and reaction time on the biodiesel yield and purity were investigated. Biodiesel yield and purity of 17.99% and 67.04%, respectively, were obtained used acid catalyst (H2SO4) of 2.37%, ratio of methanol and rice bran of 15 (mL/g), and 5 h of reaction time.  Recovery of crude biodiesel obtained was 92.45%. Based on the proposed method, the production process of biodiesel could be simplified and improved; therefore, the production cost probably could be reduced further.
Co-Authors Achmad Roesyadi Adelia Paramita Efendiy Adian Galihditya Sinarto Wardhana Adidoyo Prakoso Afifatul Jannah Afifatul Jannah Ahmad Mujiburrosyid Ahmad Saifullah Hajar Alfi Nur Iftitah Ali Altway Alvin Maulana Amri Maulana Bambang Pramujati Candra Faisal Akbar Dandi Taufiq Noerhidayat Dennis Farina Nury Diana Novita Sari Endry Nugroho P Endry Nugroho P. Endry Nugroho Prasetyo Enrique Gianfranco Fachrudin, Fathi Haqqani Ghuzrina Prihandini Hamdan Ihsan Haryanto Haryanto Haryanto Haryanto Haryanto Helda Niawanti Herminanto, Rifky P Heru Sukadri Hikmatun Ni'mah Hikmatun Nikmah Indra Cahya Widagda Irfan Saputra Irmawati, Devi Ju, Yi Hsu Kevin Surya Rizky Shodiq Krystallyn Gracella Angeline Lailatul Qadariyah Latifah Maratis Sholihah M Rachimoellah M. Rachimoellah Mahfud Mayongga Heriz Febrada Mohamad Emaldi Wilhan Ariawan Muhamad Irfaid Darojat Muhammad Majid Alifan Muhammad Rizky Sanjaya Muhammad Zulfikar Luthfi Mukhlis Solehuddin Naulina, Rosada Y Naulina, Rosada Yulianti Nuraini Septi Fijianti Nurkhamidah, Siti Putra, Ari Krisna Rachmaniah, Orchidea Ratri Ninda Handayani Risfanali Raja Siti Isna Rachma Wati Siti Machmudah Sri Utami Sumarno Sumarno Tantular Nurtono Tri Widjaja Wicaksono, Sigit Tri Widiyastuti Winardi, Sugeng Yeni Rahmawati, Yeni Yulia T. Rakhadima Zelika Nidya Damarani