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Short Communication: Enhancing the Drying Process of Microbial-Based Products with a Dehumidifier

Advances in Microbiology 2024年第6期14卷 333-339页

作者： Nor Hidayah Bohari Elya Masya Mohd Fishal ili bazilah abd razak Muhammad Ashraf Arif Mohd Nasir Cik Mohd Rizuan Zainal Abidin Crop Protection and Biosolutions Department FGV R&D Sdn Bhd Bandar Enstek Malaysia

The development of microbial-based products requires certain criteria for them to be successfully commercialized. The product must meet the following desirable criteria: effectiveness, contamination free, stability, cost-effectiveness, and a prolonged shelf life. Controlling the drying process is crucial for ensuring the stability and durability of the product. The traditional approach, which involved mechanical and natural drying, led to decreased productivity and quality. The objective of this research endeavour was to achieve a dry process enhancement while preserving the microbial quality of Trichoderma asperellum (M103). The temperature and relative humidity during the drying period were monitored under two conditions: with and without a dehumidifier. The results demonstrate that the dehumidifier increases drying period efficiency by up to 63%.

关键词： Dehumidifier Drying Relative Humidity Microbial-Based Product

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In Vitro Screening of Endophytic Trichoderma sp. Isolated from Oil Palm in FGV Plantation against Ganoderma boninense

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Advances in Microbiology 2022年第7期12卷 443-457页

作者： Elya Masya Mohd Fishal ili bazilah abd razak Nor Hidayah Bohari Muhammad Ashraf Arif Mohd Nasir Crop Protection and Biosolution Department FGV R & D Sdn Bhd Bandar Enstek Malaysia

The potential of several endophytic Trichoderma isolates, isolated from healthy oil palm roots was assessed against Ganoderma boninense (PER71), the causal agent of Basal Stem Rot (BSR) disease through in vitro screening. In the dual culture assay, all endophytic Trichoderma isolates were found to be capable of inhibiting the growth of PER71 mycelium, by causing more than 70% inhibition of the pathogen’s radial growth (PIRG). Trichoderma asperellum M103 has caused the highest inhibition at 93.14%. The volatile compound produced by M103 also suppressed 65% of the pathogen’s radial growth. On the other hand, T. harzianum, M108 was found to have the ability to produce non-volatile compounds that is toxic and it has effectively inhibited 98.18% of the growth of PER71. Collectively, T. asperellum M103 and T. harzianum M108 have the potential to inhibit the growth of G. boninense PER71. These isolates were shown to be viable options for the future management of G. boninense in the oil palm field.

关键词： Endophytic Trichoderma Ganoderma boninense In Vitro Oil Palm

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Aerobic Degradation Process in Palm Oil Mill— Issues, Challenges and Upsurging Its Efficiency through Bioremediation

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Journal of Water Resource and Protection 2022年第7期14卷 515-530页

作者： ili bazilah abd razak Nor Hidayah Bohari Elya Masya Mohd Fishal Nurul Lina Mohamad Muhamad Nurfikri Azmi Muhammad Firdaus Fahmi Mohd Razali Hamdan Ibrahim Crop Protection and Biosolution Department FGV R&D Sdn Bhd Lengkuk Teknologi Bandar Enstek Negeri Sembilan Malaysia Feed and Industrial Technology FGV Applied Technologies Sdn Bhd Lengkuk Teknologi Bandar Enstek Negeri Sembilan Malaysia

Palm oil mill effluent (POME) is liquid waste produced from palm oil extraction process. Discharging it to the river without treatment is violation according to Malaysia Environment of Quality Act (EQA) 1974. In Malaysia, ponding system is a conventional treatment method for POME due to its economical and simple process. The treatment process mainly involves two main treatment phases;anaerobic and aerobic degradation. Anaerobic degradation has a proven track record in reducing pollutant properties in POME up to 85%. The real challenge is to increase the efficiency of aerobic process as the biological oxygen demand (BOD) discharge limit has been further reduced from 100 mg·L-1 to less than 20 mg·L-1. One of economical and feasible approach to increase the efficiency of aerobic phase is via bioremediation. This paper describes the limitation of aerobic degradation in ponding system, besides discussed on the important aspects that need to be optimized for a success implementation of bioremediation and its challenges.

关键词： Aerobic Anaerobic Bioremediation Biological Oxygen Demand Palm Oil Mill Effluent

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