Doctor

Name: Ibnu Maulana Hidayatullah (33019001)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Made Tri Ari Penia Kresnowati | 3. Dr. I.G.B.N. Makertihartha
Research Title and Description:

Fermentation Technology for Xylitol Production from Empty Fruit Bunch

Empty fruit bunches (EFB) can be utilized as the substrate of xylitol production (sweetener for pharmaceutical and food products) using fermentation process. Before doing fermentation, EFB need to be pretreated to degrade lignin into derivative substances. These substances are potential to interfere activity of fermentation agents, thus decreasing xylitol yield and productivity. The research is focused on evalutation of inhibition rate for either derivative substances, therefore being capable to increase xylitol yield and productivity, and minimalize inhibiton during fermentation.


Name: Noviani Arifina Istiqomah (33019008)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Made Tri Ari Penia Kresnowati
Research Title and Description:

Syngas Fermentation for Bioethanol Production

Biomass is a renewable source with high potential as substrate for energy source. One of biomass utilization is using gasification to produce synthetic gas (syngas) that can be converted into ethanol via fermentation. Syngas fermentation technology has low mass transfer, cell concentration, and productivity. Syngas fermentation is influenced by acetogen, reactor types, gas composition, operational parameters, gas-liquid mass transfer, and fermentation strategics. The objective of this research is to optimize ethanol yield from syngas fermentation.


Name: Yustina Metanoia Pusparizkita (33017001)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Ardiyan Harimawan | 3. Dr. Hary Devianto
Research Title and Description:

Influence of Microorganism and Biodiesel Concentration against Tank Corrosion

Carbon steel is a material for biodiesel storage tank that can easily be corroded by microorganisms (biocorrotion). Microorganisms utilize biodiesel, degradable material, as carbon source. Microorganism types, as the cause of biocorrotion against biodiesel storage tanks in Indonesia, have not been identified yet. Microorganism mechanism in terms of biodiesel utilization, the produced metabolites, and the influences against the corrosion damage level need to be researched further. In this research, microorganism isolation is conducted and contribution of local microorganisms is learned to recognize the biocorrosion problems against biodiesel storage tanks.


Name: Resa Setia Adiandri (33017002)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Ronny Purwadi | 3. Hoerudin, SP, MFoodSt, PhD
Research Title and Description:

Biosurfactant Production Using Lignocellulosic Material for Biopesticide Application

In agriculture, biosurfactant is needed to control plant pest organisms either against food plants, horticulture, or plantation. A barrier in biosurfactant development is high production cost. The cost of biosurfactant production can be minimized by utilizing materials that are available in abundant amount, renewable, contain nutrition for fermentation process, and cheap such as lignocellulosic materials. One of the highest potential lignocellulosic materials is agricultural waste. This research is focused on bacterial selection for biosurfactant production and reviewing inducer effects against biosurfactant performance using lignocellulosic material for biopesticide application.


Name: Arini Wresta (33017003)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Sanggono Adisasmito | 3. Dr. Neni Sintawardani
Research Title and Description:

Analysis of Multi-Stage Anaerobic Reactor Performance with the Substrate from Industrial Tofu Wastewater for Biogas Production

Industrial tofu wastewater is potential as the substrate for biogas production by utilizing the high protein content to produce methane. Fixed bed reactor is a reactor type that is used in biogas production with multi stages and anaerobic system. To date, there has not been capable data set of biogas production performance in the reactor. This research is focused on analysis of reactor performance in laboratory scale. The performance is quantified by using mathematical model that can be a representation of biogas production overview from industrial tofu wastewater. Modelling of fixed bed reactor is conducted to test parameters in batch process that will be used in continuous process afterwards.


Name: Choerudin (33017004)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Vita Wonoputri
Research Title and Description:

Forming, Characterization, and Modelling of Aerobic Granular Sludge System for Textile Wastewater Treatment

Aerobic granular sludge (AGS) is potential to be a new alternative in wastewater treatment biologically. AGS application is aimed to treat wastewater with complex pollutant content such as textile wastewater. The main obstacle in LGA application for textile wastewater treatment is low productivity of granules forming. This research is aimed to develop LGA production using textile wastewater. Determination of the best operation is conducted according to the formed granules productivity. The whole results related to theoretical study, experiment, and model are expected to be used for design system of wastewater treatment in larger scale.


Name: Diah Meilany (33015002)
Advisors: 1. Prof. Dr. Tjandra Setiadi | 2. Dr. Made Tri Ari Penia Kresnowati
Research Title and Description:

Modification of Preatreatment and Enzymatic Hydrolysis of Empty Fruit Bunch in Xylitol Production Using Microorganism

Empty fruit bunches (EFB) are lignocellulosic waste in abundant amount in Indonesia. To elevate EFB value, xylan, as the dominant component in hemicellulose, can be utilized in xylitol (sweetener in pharmaceutical products and food) production and xylanase enzyme production, using fermentation process, that is used further in xylitol production. The research is focused on modification of  EFB pretreatment to degrade lignin, inhibitor in fermentation process; scaling up of xylanase enzyme production; and enzymatic hydrolysis of EFB using xylanase enzyme to degrade xylan into xylosa as the substrate of xylitol production.