PENGARUH PERLAKUAN AWAL HYDROTHERMAL DAN FERMENTASI SUBSTRAT PADAT MENGGUNAKAN TRICHODERMA REESEI TERHADAP DEGRADASI LIGNOSELULOSA DAN SINTESIS ASAM HUMAT DARI LIMBAH TONGKOL JAGUNG (ZEA MAYS L.)
Corn plant (Zea mays) is a cereal crop that consists of grains, husks, leaves, stalks, and cobs, each of which can be utilized into high-value byproducts. Currently, one part of the corn plant, namely the cob, has not been optimally utilized. Corn cobs are one of the agricultural wastes of corn p...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/83139 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Corn plant (Zea mays) is a cereal crop that consists of grains, husks, leaves, stalks,
and cobs, each of which can be utilized into high-value byproducts. Currently, one part
of the corn plant, namely the cob, has not been optimally utilized. Corn cobs are one
of the agricultural wastes of corn plants that are produced in large quantities, making
them abundant and easily available. Corn cobs contain 45% cellulose, 35%
hemicellulose, and 15% lignin. These lignocellulose components can be converted into
various organic acids, one of which is humic acid, which can be obtained through the
solid substrate fermentation process using Trichoderma reesei fungal cultures with
variations in initial hydrothermal treatment time of 30, 45, and 60 minutes. This initial
hydrothermal treatment is used to break down lignocellulose into cellulose,
hemicellulose, and lignin to make it easier to convert during the fermentation process
due to its simpler structure. Trichoderma reesei was chosen because it can break down
lignocellulose and increase the formation of organic acids such as humic acid in a
relatively short time. In this study, the fermentation process was carried out for 35 days
in a closed and dimly lit room so that the microorganisms used could work properly.
Data collection was carried out every 7 days to determine the content of each
lignocellulose and humic acid component found in the corn cobs. After the fermentation
process took place, it was known that there was a decrease in the content of
hemicellulose by 20-26%; cellulose by 14-19%; and lignin by 21-25%. Meanwhile, the
humic acid content continued to increase until it reached 4.5-5.3% on day 35. In this
study, a statistical correlation analysis was also carried out where the results obtained
stated that the fermentation process had a significant effect on the degradation of
lignocellulose and the synthesis of humic acid |
|---|