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Biodelignification of lemon peels using Aspergillus sp. to improve yield and composition of extxracted lemon oil
Abduh M.Y.a, Nababan E.a, Ginting F.a, Juliati J.a, Nugrahapraja H.a
a School of Life Sciences and Technology, Institut Teknologi Bandung (ITB), Bandung, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020, International Islamic University Malaysia-IIUM.Lemon oil obtained from lemon peels has a high market value. However, the presence of lignocellulose composed of cellulose, hemicellulose, and lignin, can inhibit the extraction process. This study aimed to determine the effect of biodelignification on lemon peels using Aspergillus sp. towards lignin content, yield, chemical composition, and productivity of lemon oil. A solid-state fermentation was carried out under controlled relative humidity of 99% and a light intensity of ~0 W/cm2 for 0, 3, 6, and 9 days. The number of spores used was in the range of 0.3-5 x 105 spores/gram substrate with a ratio of spore solution and substrate of 1:1. Extraction was performed using a steam distillation method at 97-98°C for 6 hours. The results showed that the lignin content decreased with an increased fermentation time: 8.01%, 6.97-7.28%, 5.83-7.28%, and 4.35-5.44% dry weight for day 0, 3, 6, and 9, respectively. Lemon oil yield increased as the period of fermentation increased up to 0.27%, 0.29-0.31%, 0,30-0.46%%, and 0.67-0.79% for day-0, 3, 6, and 9, respectively. A major component of lemon oil is d-limonene. The d-limonene content reached 72,54% for day-0, 73-99% for day-3, 75,09-84.59% for day-6, and 88,03-99% for day-9.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Aspergillus sp.,Biodelignification,Lemon oil,Lemon peels,Lignin content[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.31436/iiumej.v21i2.1320[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]