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All Journal Teknosains: Media Informasi Sains dan Teknologi Walisongo Journal of Chemistry
Irma Rahayu
Universitas Islam Negeri Alauddin Makassar
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Physics

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EVEKTIFITAS PEMANFAATAN RUANG TERBUKA PUBLIK DI TAMAN SULTAN HASANUDDIN GOWA Irma Rahayu; Wahyuni Ayu Jaharuddin
Teknosains Vol 14 No 1 (2020): JANUARI
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/teknosains.v14i1.10216

Abstract

The importance of the existence of Green Open Space (RTH) in urban areas has begun to be felt by the community at this time. By looking at the phenomenon of the many public open spaces that are changing their faces into new high-rise buildings and housing, it has encouraged the enthusiasm of some people to restore the role of public space in urban areas. Various environmentalists took part, including the government through the Ministry of Public Works and Public Housing, various communities including the implementers of the 2015 world habitat day activity (HHD2015) and writers, to voice the urgency of public space and share ideas and strategies for encourage the realization of public space for all communities. Sultan Hasanuddin Park is a park located in Gowa Regency, but it is not passed by public transportation. Sultan Hasanuddin Park also has several supporting facilities but it does not function properly and some have been damaged. This study uses a qualitative descriptive method, which describes a phenomenon, events and conditions that exist. This study aims to Analyze the pattern of spatial use in Sultan Hasanuddin Park, Identify factors influencing the effectiveness of the utilization of the Sultan Hasanuddin Makassar Park facility and Analyze the utilization of supporting facilities for Sultan Hasanuddin Park as a public open space. The results showed that the Sultan Hasanuddin Park did not function properly, due to the lack of shade in the seating area, so that the upholders sat in a shaded area and not in the proper seat. The absence of a clear parking area so that the end of the park in the park and the absence of public bins so that one corner of the park used as public TPU. Lack of care / janitors who take care of the park so that plants and grasses that exist in the garden are not maintained.
Isolation of Cellulose-Degrading Bacteria from Luwu Timur in Oil Palm Empty Fruits Bunch Amalyah Febryanti; Maswati Baharuddin; Irma Rahayu
Walisongo Journal of Chemistry Vol 4, No 2 (2021): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v4i2.9173

Abstract

The oil palm empty fruit bunch (OPEFB) is one of the solid wastes produced by industrial factories. These bunches are the habitat of cellulolytic bacteria. This study aims to identify the morphology and determine the potential microorganisms in degrading oil palm empty fruit bunches waste. The methods used in this study were isolation and observation of bacterial morphology, bacterial screening, degradation test of empty oil palm fruit bunches waste, and enzyme activity test with DNS method using UV-Vis spectrophotometer at a wavelength of 530 nm. A collection of 14 isolates were obtained from the isolation process.  We obtained 14 isolates from the sample, the largest clear zone was shown by isolate S10.   The isolate also exhibited the highest cellulose-degrading activity after 7 days incubation period with a degrading percentage of 13.27%. After incubation for 2 days, the morphological characteristics of the bacteria produced have circular and medium-sized colonies, yellow, colonies wave edges and flat colonies, elevation convex and smooth surface. The resulting enzyme activity was 0.1308 U/mL. Therefore, isolate S10 was suspected to have the potential to degrade plastic.
Co-Authors Amalyah Febryanti Maswati Baharuddin Wahyuni Ayu Jaharuddin