Enhanced growth and hydrocarbon production of Botryococcus braunii KMITL 2 by optimum carbon dioxide concentration and concentration-dependent effects on its biochemical composition and biodiesel properties.

Bioresour Technol

Bioproducts Science Program, Department of Science, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand; Center for Advanced Studies in Tropical Natural Resource, NRU-KU, Kasetsart University, Chatuchak, Bangkok 10900, Thailand.

Published: November 2017


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

The purposes of this study were to find the optimum level of supplementing CO for increasing the biomass and hydrocarbon production of B. braunii KMITL 2 (A race) and to determine the effects of CO level on CO fixation and biodiesel properties. The experimental results showed that the alga supplemented with 10% CO produced the highest biomass (1.48±0.02gL) and CO fixation rate (100.43±1.42mgLd) that were 2.7 and 5.3 times higher than the control (0.04% CO). The gravimetric hydrocarbon content (36.82±3.39%) and hydrocarbon titer (0.35±0.03gL) of the alga supplemented with 5% CO were 1.6 and 2.7 times higher than the control. Cultivation of this strain under 5% CO gave the highest hydrocarbon yield and good biodiesel properties with the lowest iodine value and a higher CN value than the ASTM D6751 and EN 14214 fuel standards.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.biortech.2017.06.042DOI Listing

Publication Analysis

Top Keywords

biodiesel properties
12
hydrocarbon production
8
braunii kmitl
8
alga supplemented
8
times higher
8
higher control
8
hydrocarbon
5
enhanced growth
4
growth hydrocarbon
4
production botryococcus
4

Similar Publications

The production of diesel-biodiesel blends (DBB) aims to mitigate the environmental impacts of diesel combustion. However, gaps remain in understanding their molecular properties, particularly fluorescence anisotropy (FA), which reflects molecular rotation and environmental constraints (e.g.

View Article and Find Full Text PDF

High-ammonium wastewater can be simultaneously remediated and valorized through phototrophic cultivation of stress-resilient microalgae. This study evaluated the growth performance of 16 microalgae strains (specific growth rate μ = 0.108-0.

View Article and Find Full Text PDF

The synthesis of biodiesel is given wide attention due to its environmental benefits, renewability, and long-term sustainability. Importantly, it can also contribute to the elimination of the current global energy and climate change challenges. However, its production has been studied by the diverse catalytic systems.

View Article and Find Full Text PDF

Recent trends in microbial production of alkanes.

World J Microbiol Biotechnol

September 2025

Botany Department, Faculty of Science, Aswan University, Aswan, 81528, Egypt.

Alkanes are saturated hydrocarbons characterized by their stable chemical properties and multiple uses in the energy sector. Although alkanes are found in nature in various sources like natural gas and petroleum, microbial alkane production has become a promising way to develop sustainable biofuels. Alkanes are produced by microorganisms such as bacteria, fungi, yeast, and algae via particular metabolic pathways.

View Article and Find Full Text PDF

Extracting regions of lipid droplets from confocal microscopy images utilizing optical properties of oleaginous yeast.

Appl Microbiol Biotechnol

September 2025

Department of Electrical, Electronics and Information Engineering, Nagaoka University of Technology, 1603-1, Kamitomioka, Nagaoka, 940-2188, Niigata, Japan.

Non-invasive methods for observing the morphology of living oleaginous yeast are ideal for optimizing the production of various oils, such as food oils, oleochemicals, and biodiesel, from oleaginous yeast. However, existing methods have been developed to target budding yeast without high oil production ability and extract regions of entire cells. This study is the first to target oleaginous yeast, namely, Lipomyces starkeyi, demonstrating a method for extracting regions of L.

View Article and Find Full Text PDF