Antifungal Efficiency of Biochar Crude Extracts
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Abstract
Biochar is a charcoal-like substance made by burning biomass such as agricultural wastes in a process called pyrolysis. Currently, biochar has been used in agriculture to improve soil quality. It has also been reported to inhibit plant pathogenic microorganisms in the soil. Therefore, this study aimed to investigate the antimicrobial efficiency against Aspergillus sp. and Penicillium sp. of crude extracts of biochar produced from sawdust, coconut shell, acacia wood, rubber pericarp and rubber wood. The biochar was extracted with two solvents including methanol and distilled water. Three concentration levels of the methanolic and aqueous extracts used in the experiments were 1, 2 and 3 %(v/v). From the results, it was found that different biochar extracts inhibited the tested fungi differently and their concentrations had direct effect on the reduction of fungal mycelia. The methanolic rubber wood derived biochar with the concentration of 3% (v/v) exhibited the highest antifungal activity against Aspergillus sp. with the % growth inhibition of 10.56±0.60% while the methanolic coconut shell derived biochar with the concentration of 3% (v/v) exhibited the highest antifungal activity against Penicillium sp. with the % growth inhibition of 24.29±9.31%. This study demonstrates the antifungal potential of biochar which can be applied in various fields in the future.
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บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของ วารสารวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยอุบลราชธานี
ข้อความที่ปรากฏในบทความแต่ละเรื่องในวารสารวิชาการเล่มนี้เป็นความคิดเห็นส่วนตัวของผู้เขียนแต่ละท่านไม่เกี่ยวข้องกับมหาวิทยาลัยอุบลราชธานี และคณาจารย์ท่านอื่นๆในมหาวิทยาลัยฯ แต่อย่างใด ความรับผิดชอบองค์ประกอบทั้งหมดของบทความแต่ละเรื่องเป็นของผู้เขียนแต่ละท่าน หากมีความผิดพลาดใดๆ ผู้เขียนแต่ละท่านจะรับผิดชอบบทความของตนเองแต่ผู้เดียว
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