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All Journal Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Lumbantoruan, Lusiana
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Sosialiasasi Pembuatan Lubang Resapan Biopori di Kelurahan Malasilen Indriyani, Nita; Putri, Lydia; Sahuburua, Franklin; Nernere, Samuel; Lumbantoruan, Lusiana
ADMA : Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 3 No 2 (2023): ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : LPPM Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/adma.v3i2.2571

Abstract

Biopore Infiltration Hole is a small hole in the soil that is formed due to the activity of soil organisms such as worms, root movement in the soil, termites and other animals. The hole is filled with air until it enters the water stream. Rainwater does not go directly into the gutter but seeps into the ground through the hole. The benefits of the Biopori Infiltration Hole for the community are: Reducing the impact of floods, landfills for organic waste, fertilizing plants, and improving ground water quality. The expected results from the implementation of this activity are to reduce the impact of flooding in the Malasilen Village area and increase the understanding of residents to recognize the surrounding environment, increase the spirit of community cooperation to overcome problems in their environment, and prevent disease outbreaks due to puddles of drainage water.
Fermented Sugar From Ultrasound-Assisted Acid Hydrolysis Berenuk Fruit (Crecentia Cujete L.) Indriyani, Nita; Lumbantoruan, Lusiana; Musfika, Ummu; Fathurrahman, F.
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 9, No 1 (2024): EDISI MARET 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v9i1.5638

Abstract

Berenuk fruit (Crecentia Cujete L) is a non-food plant often found in tropical areas. Berenuk has quite a high content of carbohydrates and its derivatives. Among them are 18.61% carbohydrates, 59.86% sucrose, 25.09% fructose, and 18.24% galactose, so berenuk fruit has the potential to be a source or ingredient for bioethanol. The bioethanol process from biomass goes through several steps: raw material preparation, hydrolysis process and fermentation. The hydrolysis process is the process of breaking down carbohydrate into glucose units which are connected by β-1,4 glycosidic bonds. Another method of breaking sugar polymers can be done using alternative energy such as ultrasonic waves (50Hz, 50W) or microwaves. In this research, an ultrasonic-assisted acid hydrolysis process was carried out. The type of acid used is concentrated sulfuric acid (H2SO4). Ingredients ratio 1:20 (w/v) berenuk powder sample with sulfuric acid. The sulfuric acid concentrations used were 1 M, 2 M, and 3 M. Hydrolysis times were 40 minutes, 60 minutes, and 80 minutes at a temperature of 1000C. The results of research that has been carried out on the preparation process of bereneuk fruit have an average water content of 97.44%, so treatment is required before proceeding to the hydrolysis and fermentation process, namely by drying the drying process is carried out directly in sunlight for seven days, then continued by heating the oven for 8 hours at 1000C. In the ultrasonic wave assisted hydrolysis process carried out at a H2SO4 concentration of 3 M, a hydrolysis time of 80 minutes, and a temperature of 1000C produces 22.20% glucose.
Co-Authors Fathurrahman, F. Indriyani, Nita Musfika, Ummu Nernere, Samuel Putri, Lydia Sahuburua, Franklin