EFFECT OF OHMIC HEATING AS A PRETREATMENT METHOD FOR BIODIESEL EXTRACTION FROM MICROALGAE

被引:4
作者
Sofi'i, Imam [1 ]
Sumarlan, Sumardi Hadi [2 ]
Wignyanto [3 ]
Susilo, Bambang [2 ]
机构
[1] Politekn Negeri Lampung, Dept Agr Technol, Bandar Lampung 35144, Indonesia
[2] Brawijaya Univ, Fac Agr Technol, Dept Agr Engn, Malang 65145, Indonesia
[3] Brawijaya Univ, Fac Agr Technol, Dept Agroind Technol, Malang 65145, Indonesia
来源
JURNAL TEKNOLOGI | 2019年 / 81卷 / 03期
关键词
Pretreatment; microalgae; ohmic heating; ELECTRIC-FIELD TREATMENT; LIPID EXTRACTION; CELL-DISRUPTION; ASSISTED EXTRACTION;
D O I
10.11113/jt.v81.11716
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Microalgae are single cell organisms that have the potential to be developed as feedstock for biodiesel oil. One of the problems of using microalgae as feedstock for biodiesel is in the extraction process. Microalgae extraction requires considerable cost. The purpose of this study was to determine the effect of ohmic heating as a method of pretreatment in microalgae oil extraction. The raw materials used were microalgae paste diluted in two levels cell density, 20 g/L, and 30 g/L. The pretreatment using alternating current (AC) electric with two voltage levels (55 V and 110 V), and the duration of pretreatment was 30 seconds and 60 seconds. The next step was drying and extracting microalgae by solvent extraction method of n-hexane. The results showed that the highest oil yields (14.88%) were obtained by cell density treatment 20 g/L, done for 60 seconds of pretreatment and 110 V voltage. This result was higher than without pretreatment, so the use of pretreatment by ohmic heating can improve extracted oil yield than without pretreatment.
引用
收藏
页码:83 / 89
页数:7
相关论文
共 42 条
[31]   A comparative study on effective cell disruption methods for lipid extraction from microalgae [J].
Prabakaran, P. ;
Ravindran, A. D. .
LETTERS IN APPLIED MICROBIOLOGY, 2011, 53 (02) :150-154
[32]   The influence of medium conductivity on electropermeabilization and survival of cells in vitro [J].
Pucihar, G ;
Kotnik, T ;
Kanduser, M ;
Miklavcic, D .
BIOELECTROCHEMISTRY, 2001, 54 (02) :107-115
[33]   Mechanistic Assessment of Microalgal Lipid Extraction [J].
Ranjan, Amrita ;
Patil, Chetna ;
Moholkar, Vijayanand S. .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (06) :2979-2985
[34]   Algal cell rupture using high pressure homogenization as a prelude to oil extraction [J].
Samarasinghe, Nalin ;
Fernando, Sandun ;
Lacey, Ronald ;
Faulkner, William Brock .
RENEWABLE ENERGY, 2012, 48 :300-308
[35]   Second Generation Biofuels: High-Efficiency Microalgae for Biodiesel Production [J].
Schenk, Peer M. ;
Thomas-Hall, Skye R. ;
Stephens, Evan ;
Marx, Ute C. ;
Mussgnug, Jan H. ;
Posten, Clemens ;
Kruse, Olaf ;
Hankamer, Ben .
BIOENERGY RESEARCH, 2008, 1 (01) :20-43
[36]   Evaluation of Cell-Disruption Effects of Pulsed-Electric-Field Treatment of Synechocystis PCC 6803 [J].
Sheng, Jie ;
Vannela, Raveender ;
Rittmann, Bruce E. .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (08) :3795-3802
[37]  
Sofi'i I, 2017, BIOSCI RES, V14, P386
[38]   Steps of supercritical fluid extraction of natural products and their characteristic times [J].
Sovova, Helena .
JOURNAL OF SUPERCRITICAL FLUIDS, 2012, 66 :73-79
[39]   Energy-efficient extraction of fuel and chemical feedstocks from algae [J].
Teixeira, Rodrigo E. .
GREEN CHEMISTRY, 2012, 14 (02) :419-427
[40]   Biodiesel production by simultaneous extraction and conversion of total lipids from microalgae, cyanobacteria, and wild mixed-cultures [J].
Wahlen, Bradley D. ;
Willis, Robert M. ;
Seefeldt, Lance C. .
BIORESOURCE TECHNOLOGY, 2011, 102 (03) :2724-2730