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Yora Faramitha
Indonesia Oil Palm Research Institute-Bogor Unit
Agriculture, Biological Sciences & Forestry

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Production and profiling bioflavor compound from fermentation OPEFB hydrolysate and CPO by Lactobacillus sp. Firda Dimawarnita; Azzakiyya Salsabila Syifa Kusuma; Urip Perwitasari; Elok Zubaidah; Yora Faramitha; Pijar Religia; Ario Betha Juanssilfero
Menara Perkebunan Vol. 92 No. 1 (2024): 92(1), 2024
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v92i1.564

Abstract

Bioflavor is a type of natural flavor that is obtained from microbial metabolites during the process of fermentation. Most of the bacteria involved in food fermentation are lactic acid bacteria, including Lactobacillus sp. The optimal medium for Lactobacillus sp. growth is de Man Rogosa and Sharpe (MRS), but it is considered to be less economical. Therefore, alternative carbon and nitrogen sources are needed. This study aimed to determine the bioflavor produced in de Man Rogosa dan Sharpe Broth (MRSB) media that was substituted with Oil Palm Empty Fruit Bunch (OPEFB) hydrolysate and Crude Palm Oil (CPO) at concentrations of 5, 15, and 30%, respectively by using gas chromatography-mass spectrometry. The results showed that substituting MRSB with 15% CPO produced the best results for the growth of Lactobacillus sp. However, each medium produced different bioflavor compounds. In the control media (MRSB), the highest amount of bioflavor compound was 2,3-dihydro-3,5-dihydroxy-6-methyl -4H-Pyran-4-one (rose tea). In the OPEFB hydrolysate-substituted medium, it was benzene-acetaldehyde (sweet, bread, rose), in the CPO-substituted medium, it was furaneol (pineapple and strawberry) and pyrazine (nutty, roasted coffee).
Fabrication and characterization of biocomposite pellets from cassava starch and oil palm empty fruit bunch fibers Yora Faramitha; Firda Dimawarnita; Adi Cifriadi; Happy Widiastuti; Tjahjono Herawan
Menara Perkebunan Vol. 92 No. 1 (2024): 92(1), 2024
Publisher : INDONESIAN OIL PALM RESEARCH INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iribb.jur.mp.v92i1.566

Abstract

Oil palm empty fruit bunches (OPEFB) are lignocellulosic biomass that can be used to produce a biocomposite as an alternative to substitute non-renewable materials, such as plastic. Generally, the production of biocomposites uses OPEFB, which has been processed into cellulose, microcrystalline cellulose, or nanocellulose and is mixed with starch. However, the OPEFB pretreatment into various types of cellulose requires a long process and many chemicals. The OPEFB pretreatment with less process, such as cutting to shorter fibers and without chemicals, was expected to shorten the process. This study aims to produce and evaluate the characteristics of biocomposite pellets from a combination of cassava starch and OPEFB fibers. Short OPEFB fibers (3-5 mm) with varying concentrations of 0, 5, 10, 15, and 20% were added to the cassava starch before mixing with other materials. The twin screw extruder used to produce biocomposite pellets was set at six temperature zones ranging from 85-140 °C and the screw speed in the range of 160-190 rpm. The results show that higher concentrations of OPEFB fibers produced darker pellets, which tended to be greyish. The biocomposite pellets had densities of 1.322-1.417 g cm-3. SEM results show some agglomerations on the surface of starch-OPEFB fibers biocomposite pellets. The water solubility of biocomposite pellets ranged from 32.97 – 36.44%. In conclusion, biocomposite pellets could be produced from a mixture of cassava starch and OPEFB fibers up to 20%. In its application for rigid packaging production, the biocomposite pellets’ performance could be improved by mixing them with recycled polypropylene.
Co-Authors Adi Cifriadi Ario Betha Juanssilfero Azzakiyya Salsabila Syifa Kusuma Elok Zubaidah Firda Dimawarnita Firda Dimawarnita Happy Widiastuti Pijar Religia Tjahjono Herawan Urip Perwitasari