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MODEL SIMBIOSIS MUTUALISME SAWIT-SAPI DI KECAMATAN WIWIRANO, SULAWESI TENGGARA Ahmad, Sitti Wirdhana
Prosiding Seminar Nasional Riset Kuantitatif Terapan 2017 Vol 1, No 1 (2017): Seminar Nasional Riset Kuantitatif Terapan 2017
Publisher : Prosiding Seminar Nasional Riset Kuantitatif Terapan 2017

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (332.661 KB)

Agribisnis kelapa sawit (Elaeis guineensis Jacq.) yang berorientasi pasar lokal maupun global akan berhadapan pada tuntutan kualitas produk, kuantitas produksi serta kelestarian lingkungan. Dalam pengembangan kelapa sawit akan dihasilkan limbah baik padat maupun cair seperti pelepah, daun, lumpur sawit, bungkil kelapa sawit, tandan kosong, serat/perasan buah dan cangkang sawit. Limbah ini mempunyai potensi sebagai pakan baik untuk ternak ruminansia maupun non ruminansia, dan kotoran ternaknya sangat baik dalam penyediaan unsur hara tanah. Penelitian dilakukan pada perkebunan kelapa sawit di Kecamatan Wiwirano Kabupaten Konawe Utara Provinsi Sulawesi Tenggara sekaligus merupakan daerah yang menempatkan ternak sapi sebagai komoditas andalan. Metode dasar yang digunakan dalam penelitian ini adalah analisis deskriptif, analisis spasial dan analisis sistem dinamik menggunakan software Stella. Hasil penelitian menunjukkan bahwa luas lahan perkebunan kelapa sawit di Kecamatan Wiwirano mempunyai peluang dalam melakukan sistem integrasi sawit-sapi. Perubahan luas perkebunan kelapa sawit di Kecamatan Wiwirano pada Tahun 2006 adalah seluas 2.855,75 hektar (0,90%). Luasan tersebut menjadi 11.033,09 hektar (3,48%) pada Tahun 2011 atau terjadi peningkatan luas kawasan perkebunan kelapa sawit sebesar 2,58%. Tingkat pendapatan petani dengan melakukan sistem intergrasi sawit-sapi sebesar Rp. 19.804.571,- sedangkan sebelum melakukan sistem integrasi sawit-sapi adalah Rp. 14.872.181,- Dengan demikian, sistem integrasi sawit-sapi merupakan kinerja simbiosis mutualisme dimana masing-masing pihak baik ternak sapi maupun perkebunan kelapa sawit sama-sama mendapat manfaat dengan adanya sistem integrasi ini.Kata kunciâ€” Kelapa Sawit, Sapi, Sistem Integrasi, Pakan

Screening of Acetic Acid Bacteria from Pineapple Waste for Bacterial Cellulose Production using Sago Liquid Waste Yanti, Nur Arfa; Ahmad, Sitti Wirdhana; Ambardini, Sri; Muhiddin, Nurhayani Haji; Sulaiman, La Ode Iman
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 3 (2017): December 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v9i3.10241

Bacterial cellulose is a biopolymer produced by fermentation process with the help of bacteria. It has numerous applications in industrial sector with its characteristic as a biodegradable and nontoxic compound in nature. The potential application of BC is limited by its production costs, because BC is produced from expensive culture media. The use of cheap carbon and nutrient sources such as sago liquid waste is an interesting strategy to overcome this limitation. The objective of this study was to obtain the AAB strain that capable to produce bacterial cellulose from sago liquid waste. Isolation of AAB strains was conducted using CARR media and the screening of BC production was performed on Hestrin-Schramm (HS) media with glucose as a carbon source. The strains of AAB then were evaluated for their cellulose-producing capability using sago liquid waste as a substrate. Thirteen strains of AAB producing BC were isolated from pineapple waste (pineapple core and peel) and seven of them were capable to produce BC using sago liquid waste substrate. One of the AAB strains produced a relatively high BC, i.e. isolate LKN6. The result of morphological and biochemical test was proven that the bacteria was Acetobacter xylinum. The result of this study showed that A. xylinum LKN6 can produce a high yield of BC, therefore this strain is potentially useful for its utilization as a starter in bacterial cellulose production.

PEMANFAATAN LIMBAH CAIR SAGU UNTUK MEMPRODUKSI SELULOSA BAKTERI Ahmad, Sitti Wirdhana; Yanti, Nur Arfa; Muhiddin, Nurhayani H.
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3763

ABSTRACTBacterial cellulose is an exopolysaccharide produced by bacteria and has a high purity level compared to plant cellulose and has unique structural and mechanical characteristics that can be utilized for various industrial purposes such as food, medical, plastic and paper. This study aims to determine the potential of sago liquid waste as a substrate for producing biocellulose and sugar concentration is required in producing bacterial cellulose from sago liquid waste. Production of bacterial cellulose from sago liquid waste was done with static condition for 14 days with treatment of sugar concentration 5,10,15 and 20% (w/v) using Acetobacter xylinum. Parameters were measured include of thickness, yield, crude fiber content and moisture content. Production of bacterial cellulose using sago liquid waste requires the addition of sugar as much as 10% with a thickness of 21.73 mm, yield of 34.97%, crude fiber of 4.5% and moisture content of 91.35%. Therefore, sago liquid waste is potentially used as a substrate for producing bacterial cellulose. Keywords :Biocellulose, nata, Acetobacter xylinum, Production substrate

PEMANFAATAN LIMBAH CAIR SAGU UNTUK MEMPRODUKSI SELULOSA BAKTERI Ahmad, Sitti Wirdhana; Yanti, Nur Arfa; Muhiddin, Nurhayani H.
JURNAL BIOLOGI INDONESIA Vol 15, No 1 (2019): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v15i1.3763

ABSTRACTBacterial cellulose is an exopolysaccharide produced by bacteria and has a high purity level compared to plant cellulose and has unique structural and mechanical characteristics that can be utilized for various industrial purposes such as food, medical, plastic and paper. This study aims to determine the potential of sago liquid waste as a substrate for producing biocellulose and sugar concentration is required in producing bacterial cellulose from sago liquid waste. Production of bacterial cellulose from sago liquid waste was done with static condition for 14 days with treatment of sugar concentration 5,10,15 and 20% (w/v) using Acetobacter xylinum. Parameters were measured include of thickness, yield, crude fiber content and moisture content. Production of bacterial cellulose using sago liquid waste requires the addition of sugar as much as 10% with a thickness of 21.73 mm, yield of 34.97%, crude fiber of 4.5% and moisture content of 91.35%. Therefore, sago liquid waste is potentially used as a substrate for producing bacterial cellulose. Keywords :Biocellulose, nata, Acetobacter xylinum, Production substrate

PENGARUH MODEL PEMBELAJARAN BERBASIS MASALAH TERHADAP KETERAMPILAN BERPIKIR KREATIF DAN MOTIVASI BELAJAR SISWA SEKOLAH MENENGAH PERTAMA Hamrina, Hamrina; Jahidin, Jahidin; Bakareng, Sitti Wirdhana
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Publisher : Halu Oleo University

ABSTRACTÂ Â Â Â Â Â Â Â Â Â Â The aims of this research are to know the difference of creative thinking skill between students who learn using problem-based learning model with scientific approach, to know the difference of studentsâ€™ learning motivation between who learn using problem-based learning model with scientific approach and to know the efficacy of learning motivation to creative thinking skill. The research design is post-test only control group, used 123 students as sample, then divided into 63 students as experimental group and 60 students as control group. The results showed that creative thinking skill in experimental group had maximum score of 93.75, minimum score of 62.5, average score of 77.98, deviation standard score of 6.91, while control group had maximum, minimum, average and deviation standard score of 81.25, 50, 67.09 and 7.36, respectively. Meanwhile, learning motivation of experimental group obtained a maximum score of 90.67, minimum score of 61.33, average score of 76.77 and a standard deviation of 6.97, the control group obtained a maximum, minimum, average and deviation standard score of 89.33, 44.00, 60.89 and 8.35, respectively. The result of t test shows the creative thinking skill and learning motivation, both experimental and control group, gain a probability value of 0.00 with 5% confidence level. The effect size of learning motivation on creative thinking skill is obtained by the value of Î² in experimental group of 0.958 (95.8%) and in control group of 0.907 or 90.7%. Effect size of proble-based learning model is higher about 5% than scientific approach learning.Keywords: Learning Model, Problem Based Learning, Scientific Method, Creative Thinking, Motivation, Junior High School Students

Analisis Pelaksanaan Usaha Pertambangan Batu Gamping Dalam Upaya Pengendalian Kerusakan Lingkungan Hasmita Hasmita; La Ode Santiaji Bande; Sitti Wirdhana Ahmad
Jurnal Perencanaan Wilayah Vol 4, No 2 (2019)
Publisher : Universitas Halu Oleo

This study aimed to know how the impacts of the implementation of the rock mining business (limestone) were and to know the efforts for controlling the environmental damage were conducted by the mining businesses in North Moramo Sub-District, South Konawe District. This research is located in North Moramo Sub-District, South Konawe District, in the Sanggula Village and Mekarjaya Village with case studies at CV. Watu Moramo, CV. Bintang Mas Sukses, and PT. Mekarjaya Moramo. The time of this study held in october to december 2018. The type of this research is a qualitative-descriptive with the Analysis Method of the Data uses the Process Hierarchy Analysis (AHP). The results of this study indicated that the priority vectors of physical impacts of the rock mining business caused dust, roads damage, noise, and increation of the vehicle flow. The priority vectors of social economic and public health impacts caused health problems (ISPA) for the community, created new jobs, and increased their incomes, but some people thought that their incomes have declined and some people lost their jobs. The priority vectors of the environmental management efforts conducted by the mining businesses was watering dust, creating new jobs for the local community, and providing social assistance, and closing the transportation trucks tub. Keywords: Positive and Negative Impacts, Mining Business, Limestone, Environmental Management.

STRATEGI PENGELOLAAN TEMPAT PEMBUANGAN SAMPAH TERPADU (TPST) DI KECAMATAN RANOMEETO Budi Utama; Yulius Barra Pasolon; Sitti Wirdhana Ahmad
Jurnal Perencanaan Wilayah Vol 5, No 2 (2020): Jurnal PPW UHO Vol 5 No 2
Publisher : Universitas Halu Oleo

ABSTRACT This study aims to calculate the level of waste volume that will be generated at Ranomeeto Sub-district, South Konawe Regency, to determine the existing conditions of of Waste Disposal at Ranomeeto Sub-district, South Konawe Regency, and to analyze the management strategy of Waste Disposal at Ranomeeto Sub-district South Konawe Regency. The sample of this study used 6 respondents consisting of 2 people from the government, 2 experts, and 2 people from the community. Data analysis of this study used the analysis of the level of waste volume, qualitative analysis, SWOT analysis, and AHP analysis. The results of this study were (1) Overall, the amount of garbage in the District of Ranomeeto averages 12,036.49 kg per day, with the largest number of waste producers from the market waste of 4,500 kg so that every year in the District of Ranomeeto produces 4,393,318.85 kg of waste; (2) The existing condition of Waste Disposal at Ranomeeto, located approximately 2 km south of Ranomeeto Urban Village or approximately 15 km from Kendari City. Waste Disposal is located at Ranooha Village with a distance of 3 km from the main road and has an area of 10 hectares. Waste Disposal supporting facilities are 4 Garbage Disposal Sites, 1 garbage transport vehicle with 4 personnel and 1 driver; (3) Management strategy of Waste Disposal at Ranomeeto sub-district construction of facilities and infrastructure by optimizing the operation of of Waste Disposal and construction of the new Waste Disposal and upgrading of facilities and infrastructure is in the first rank with the composting program. Keywords: Waste Management, Integrated Waste Management, Strategy.

Strategi Pengelolaan Ekosistem Mangrove di Desa Wungkolo Kecamatan Wawonii Selatan Kabupaten Konawe Kepulauan Muhlis Muhlis; Jamili Jamili; Sitti Wirdhana Ahmad
Jurnal Perencanaan Wilayah Vol 4, No 2 (2019)
Publisher : Universitas Halu Oleo

This research aimed to describe the composition, structure, mangrove area ecosystem, economic conditions, and social culture as well as to determine the recommended management for mangrove ecosystem. The study was conducted on March-May 2019 in Wungkolo Village. Vegetation sampling used line transect and plot method. Mangrove vegetation data was obtained through observation of each plot for tree strata, saplings and seedlings. Environmental factors and spesies fauna observations were measured at each transect. Economic and socio-cultural data of the community were obtained through interview. Management directives used Analytical Hierarchy Process method. The results showed that mangrove species consists of 10 spesies, including Avicennia lanata, Bruguiera gymnorrhiza, Ceriops tagal, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, Sonneratia alba, Xylocarpus granatum, Xylocarpus moluccensis and Xylocarpus rumpi. Tree strata mangrove community was dominated by Rhizophora apiculata, saplings strata Bruguiera gymnorrhiza, and seedlings strata Rhizophora apiculata. The mangrove ecosystems area was 574,52 ha, with damaged condition in 2013 compared to 2019. The economic condition of community showed that people's income was still below the standard. The socio-cultural condition of community showed low level of education and knowledge importance of mangrove forests. The recommendation for managing mangrove ecosystems is by maintaining the extent and condition of mangroves, increasing value of mangrove ecosystems and promoting importance of mangrove ecosystems. Keywords: Mangrove, Management Strategies, Wungkolo Village

KEANEKARAGAMAN JENIS BURUNG PADA AREAL PERKEBUNAN KELAPA SAWIT DI KECAMATAN BESULUTU KABUPATEN KONAWE SULAWESI TENGGARA Sitti Wirdhana Ahmad; Jamili Jamili; Mustang Mustang
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 3, No 1 (2016): BIodiversitas
Publisher : University of Halu Oleo

ABSTRACTThis research aims to know the diversity and apportionment’s of bird on oils palm plantation acreage at Besulutu area Konawe Regency South-east Sulawesi. This research was done at oils palm plantation area PT. Mega Utama Tani on September until October 2015. This research constitutes explorative research. In this research the researcher made three stations with the reason that each station has distinctive. The data of Bird was taking by use IPA (Indices Punctual Abundance method). IPA (Indices Punctual Abundance) method is bird watch method to be accounted deep given time range that at compounds by transect's method of lines Transect's line. Base on observational result, it was found as much 17 bird geneses with totaled bird individual 722 one most deep groups 7 ordo and 14 families. Shannon Wiener's diversity index I-III alternately each of 1,99, 1,96, 2,30. Bird diversity on station I and II Includes in low category, meanwhile III. Station comprises category be, apportionment Pielou's index I-III alternately each of 0,72, 0,79, 0,83. Base acquired apportionment point on three stations, the apportionment of these three stations is categorize as high.Keyword : Bird, Oil Palm Plantation, Diversity, Apportionment

STUDI BIOMASSA LAMUN (Enhalus acoroides L.) DAN (Halodule pinifolia) BERDASARKAN KEDALAMAN AIR LAUT DI PANTAI DESA TANJUNG TIRAM SULAWESI TENGGARA Lisdawati Lisdawati; Sitti Wirdhana Ahmad; Laode Siwi
BioWallacea : Jurnal Penelitian Biologi (Journal of Biological Research) Vol 5, No 2 (2018): Biodiversitas Wallacea
Publisher : University of Halu Oleo

ABSTRAK Penelitian ini bertujuan untuk mengetahui biomassa dan faktor lingkungan yang mempengaruhi kandungan biomassa lamun Enhalus acorroides L. dan Halodule pinifolia berdasarkan kedalaman air laut di Pantai Desa Tanjung Tiram. Penelitian ini telah dilakukan pada bulan Juni - Agustus 2018. Penelitian ini bersifat eksploratif. Pengambilan sampel dilakukan pada tiga titik pengamatan dengan menggunakan metode purposif sampling berdasarkan kedalaman perairan yaitu kedalaman 1 meter, 2 meter dan 3 meter. Hasil penelitian menunjukkan bahwa kandungan biomassa lamu Enhalus acorroides L. yang terdapat pada kedalaman 1 m total biomassa 316,73 g/m2, kedalaman 2 m total biomassa 197,56 g/m2 dan kedalaman 3 m total biomassa 38,26 g/m2. Kandungan biomassa jenis lamun Halodule pinifolia pada kedalaman 1 m total biomassa 1,6 g/m2, kedalaman 2 m total biomassa 2,97 g/m2 dan kedalaman 3 m total biomassa 0,25 g/m2. Faktor lingkungan yang mempengaruhi kandungan biomassa lamun Enhalus acorroides L. dan Halodule pinifolia pada Perairan Pantai Desa Tanjung Tiram yaitu substrat, kandungan bahan organik (KOT), intensitas cahaya, suhu, salinitas dan kekeruhan. Kata kunci : Biomassa, Enhalus acorroides L. dan Halodule pinifolia ABSTRACT This study aims to determine the biomass and environmental factors that influence the seagrass biomass content of Enhalus acorroides L. and Halodule pinifolia based on the depth of sea water in Tanjung Tiram Village Beach. This research was conducted during June-August 2018. This research was explorative. Sampling area were carried out at three points by observation using purposive sampling method depth water depth of 1 meter, 2 meter and 3 meter. The biomass was estimated in the plot, while enviromental factors that influence the seagrass biomass content of Enhalus acorroides L. and Halodule pinifolia in Tanjung Tiram Village Beach are substrate, nutrient content (KOT), light intensity, temperature, salinity and turbidity. The results showed that Enhalus acorroides L biomass contained at a depth of 1 m total biomass of 316.73 g/m2, depth of 2 m total biomass of 197.56 g/m2 and depth of 3 m total biomass of 38.26 g/m2. Biomass content of Halodule pinifolia seagrass at a depth of 1 m total biomass of 1.6 g / m2, depth of 2 m total biomass of 2.97 g/m2 and a depth of 3 m of total biomass of 0.25 g / m2. Keywords: Biomass, Enhalus acorroides L. and Halodule pinifolia

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