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PENGARUH JENIS BAHAN PEREKAT DAN METODE PENGERINGAN TERHADAP KUALITAS BRIKET LIMBAH BAGLOG JAMUR TIRAM PUTIH (Pleurotus ostreatus) Mushlihah, Siti; Sulfahri; Utami, Renia Setyo; Sunarto, Eko; Warmadewanthi, I.D.A.A.
JURNAL PENELITIAN BIOLOGI BERKALA PENELITIAN HAYATI Vol 17 No 1 (2011): December 2011
Publisher : The East Java Biological Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.967 KB) | DOI: 10.23869/187

Abstract

White mushroom is one of popular food commodity in East Java. Every year total production of white mushroom is more than 4800 ton. The cultivation of this mushroom needed the medium known as "baglog". Every 3 month the medium should be changed. The huge amount of solid waste will be produced around 40 tons/month and must be managed by farmer. Based on the composition of waste contains 80% of sawdust and 10% of rice brain. This composition known has a high concentration of carbon and potential as a material to produce of energy. This research investigated the effectiveness of "baglog" from medium of white mushroom cultivation as a briquette for energy alternative. Different variables used in this experiment are drying process and material that used as an adhesive for making of the briquette. The quality of the briquette such as energy value, compressive strength of briquette, moisture, fixed carbon and emission of briquette, was analyzed, based on Indonesia Standard. Result of the experiment showed that energy value of the briquette is 3400 cal/gram with drying process using oven. The compressive strength result showed that the adhesive using starch glue is very effective. This briquette is environmentally friendly
Potensi Senyawa Bioaktif Bajakah Spatholobus litoralis Hassk Sebagai Antimikroba Dengan Cara In-Vitro dan In-Silico Alif Rahman Habibi; Johannes, Eva; Sulfahri
Jurnal Ilmu Alam dan Lingkungan Vol. 13 No. 1 (2022): Jurnal Ilmu Alam dan Lingkungan
Publisher : Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jal.v13i1.20455

Abstract

Bajakah (Spatholobus littoralis Hassk) is a plant originating from the forests of Kalimantan which contains compounds in the form of alkaloids that act as antimicrobials. The purpose of this study was to determine the activity of Spatholobus littoralis Hassk as an antibacterial. The in-silico method was carried out using a bioinformatics-based tool and antibacterial testing using the well method, this is because testing with the pitting method is more effective because the extract reacts directly with the test bacteria. Observations on S. aureus bacteria for 1x24 hours with a concentration of 12.5% formed an inhibition zone of 13.25 mm, a concentration of 25% formed an inhibitory power of 14.10 mm, and a concentration of 50% formed an inhibition zone of 15.4 mm. At 2x24 hours observation with a concentration of 12.5% formed an inhibitory zone of 13.625 mm, a concentration of 25% formed an inhibitory power of 14.50 mm, and for a concentration of 50% formed an inhibitory power of 15.70 mm. Meanwhile, E.coli bacteria do not form a clear zone so they do not have antibacterial properties.