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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology Journal of Tropical Biodiversity and Biotechnology
Senlie Octaviana
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Veterinary

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Biotransformation of n-butanol to Fruity-Like Bio-Flavour by Indonesian Lactic Acid Bacteria Setiyoningrum, Fitri; Adi, Deddy Triyono Nugroho; Priadi, Gunawan; Wibowo, Des Saputro; Octaviana, Senlie; Afiati, Fifi; Fidriyanto, Rusli; Prasetyo, Doni Dwi; Siregar, Abdul Rahman; Vincentlau, Dharma
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 4 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.93537

Abstract

Microbial production of aroma compounds is a promising alternative to extracting plants or chemical synthesis. In our research, the Indonesian lactic acid bacteria (LAB) have been utilised as producing fruity-like bio flavour by biotransformation approach using n-butanol as a precursor. The aims of our research are to identify LAB- secondary metabolites categorised fruity-like bio flavour and investigate the changes of glucose, mannitol, xylose, lactic acid and acetic acid in growth medium after fermentation. Our result research showed that n-butanol could be transformed to several fruity like bio flavour such as ethyl butyrate, butyl acetate, butyl formate, ethyl 2-methylbutanoate, ethyl 3-methylbutanoate, 2-heptanone, butyl propanoate, butyl propanoate, butyl 2-methylbutanoate, butyl isovalerate, butyl pentanoate, and butyl hexanoate. All of LABs consumed above 75% of glucose and only Lactococcus lactis KGB1 consumed all the mannitol on fermentation medium. In addition, Lactococcus lactis KGB1 produced the highest xylose, 11.87 g/L LABs produced. Based on the amount of fruity-like bio flavour compound generated, Lactobacillus fermentum WKS2, Lactobacillus fermentum KGL2, Lactococcus lactis KK4, Lactobacillus fermentum WKS3, Lactococcus lactis KGB1, and Lactobacillus fermentum KGL7 could be considered as agent fruity-like bio flavour by biotransformation approach.
Lipid Accumulation by Flavodon flavus ATH using Palm Oil Mill Effluent as Substrate Sudiana, I Made; Kanti, Atit; Helbert, Helbert; Octaviana, Senlie; Suprapedi, Suprapedi
BIOTROPIA Vol. 21 No. 2 (2014): BIOTROPIA Vol. 21 No. 2 December 2014
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (415.989 KB) | DOI: 10.11598/btb.2014.21.2.388

Abstract

Large amount of palm mill effluent is generated annually. The waste would be potential for production of single cell oils (SCOs). The objective of study was to evaluate the lipid accumulation by fungi using palm mill effluent as substrate. To obtain most potential strains for lipid accumulation, seven filamentous fungi isolated from various biomes were evaluated for their ability to produce endoglucanase, and its lipid accumulation. Fungal hypae grown on palm oil mill effluent accumulated lipid of 34,3-87,5 of their dry cell mass. The profile of transesterified SCOs revealed a high content of saturated and monounsaturated fatty acids i.e., palmitic (C16:0), stearic (C18:0) and oleic (C18:1) acids similar to conventional vegetable oils used for biodiesel production. The strain was able to use organic substrates in POME implies that they are promising strain for biofuel feed stock as well as for meeting effluent quality for wastewater discharge.
Co-Authors Abdul Rahman Siregar Adi, Deddy Triyono Nugroho Atit Kanti Fidriyanto, Rusli Fifi Afiati Helbert Helbert I Made Sudiana Prasetyo, Doni Dwi Priadi, Gunawan Setiyoningrum, Fitri Suprapedi Suprapedi Vincentlau, Dharma Wibowo, Des Saputro