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All Journal Rekayasa Mesin Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian MNJ (Malang Neurology Journal) Jurnal Ilmiah Rekayasa Pertanian dan Biosistem BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Cermin Dunia Kedokteran Jurnal Ilmu Manajemen Advantage Assets : Jurnal Ilmiah Ilmu Akuntansi, Keuangan dan Pajak
Yusuf Wibisono
Teknik Bioproses, Fakultas Teknologi Pertanian, Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Health Professions Mechanical Engineering Medicine & Pharmacology Neuroscience Public Health Social Sciences

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Sintesis Karbon Aktif Berbahan Dasar Mikroalga Chlorella vulgaris Menggunakan Aktivator KOH dan Iradiasi Gelombang Mikro Sukoyo, Agung; Djoyowasito, Gunomo; Wibisono, Yusuf
Jurnal Rekayasa Mesin Vol 10, No 2 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.02.3

Abstract

Microalgae Chlorella vulgaris has been used as a raw material in the synthesis of powdered activated carbon. Dry microalgae was pyrolyzed at a temperature of 500oC for 30 minutes to obtain microalgae charcoal. The combination of chemical activation treatment using KOH with concentrations of 10, 30, and 50% assisted by microwave irradiation have been used to prepare activated carbon. The properties of activated carbon were analyzed included yield, ash content, volatile substance content, pure activated carbon content, iodine solution absorbency, BET surface area and activated carbon imaging using SEM EDX. The results showed that Chlorella vulgaris microalgae has a carbon element content of 16.09% which has the potential to be used as an activated carbon feedstock. The microalgae activated carbon produced has a range of yield of 27.60-48.64%, ash content 27.98-44.23%, volatile substance content 23.08-30.92%, pure activated carbon content 32.69-41.10%, absorption of iodine solution 189.46 - 260.23 mg/g, surface area BET was obtained at 34,933 m² / g, with a pore average of 46.59 nm in the sample with the highest iodine absorption. Activation using microwave irradiation and higher KOH concentration, i.e. 50%, can reduce the yield and an ash content of activated carbon, on the other hand, increase the level of volatile substances and iodine absorption. SEM EDX imaging results show the formation of micropores on the surface of microalgae activated carbon, however the impurities promotes the deterioration of surface area and lowering the absorption performance of microalgae activated carbon.
Performance Comparison of Cooling Tower Filler Used in the Induced Counter Flow Type Cooling Tower System Wibisono, Yusuf
Jurnal Teknologi Pertanian Vol 6, No 3 (2005)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.837 KB)

Abstract

Appropriate postharvest handling of agricultural products is important to maintain the quality. The objectives of the research were to design and to evaluate the performance of cooling tower system, and to compare the characteristics of cooling tower filler i.e. sponge stone and foam rubber sponge, respectively. The induced counter flow type cooling tower was used in this experiment, equipped with a 90 cm height tank made up of fibber glass. Each filler, either arranged in single or multi-layers, was in direct contact with the water and air used as a media in the cooling process. The results showed that the highest range was achieved by the use of a 5 layers foam rubber sponges i.e. 3.2°C at an L/G Ratio of 2.567, maximum cooling power of 2690.6 W and COP 12.9, at temperatures of 26.1°C (dry bulb) and 24.4°C (ambient),and ambient RH of 87%. The dry bulb and wet bulb of the air inlet temperature were 25.5°C and 24.3°C, respectively, while the respective water inlet and outlet temperature 27.4°C and 24.2°C, at L/G ratio of 0.91-2.33 kJ/kg.°C.   Key words: induced counter flow, cooling tower, filler, range, L/G ratio
PENGARUH PENAMBAHAN ENZIM PAPAIN KOMERSIAL DALAM PEMBUATAN HIDROLISAT PROTEIN DARI LIMBAH CAIR SURIMI Sumarlan, Sumardi Hadi; Wibisono, Yusuf; Hawa, La Choviya; Nurwindi, Linda Luvi
Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol 5, No 1 (2017)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.903 KB)

Abstract

Limbah cair surimi mengandung 2220mg/L protein terlarut dalam air. Tingginya kandungan protein tersebut menjadikan limbah cair surimi berpotensi untuk dijadikan hidrolisat protein. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan enzim papain pada proses hidrolisis protein dari limbah cair surimi terhadap kandungan protein dan amonia. Rancangan percobaan yang digunakan adalah Rancangan Acak Kelompok (RAK) dengan dua faktor yakni konsentrasi penambahan enzim dan waktu pengamatan dengan tiga kali pengulangan. Konsentrasi enzim yang digunakan yakni 1, 2, 3, 4, dan 5% (b/v) dengan lama hidrolisis 48 jam dan diamati pada 0, 12, 24, 36, dan 48 jam. Parameter yang diamati adalah kandungan protein, amonia dan kadar air dari hidrolisat protein. Pada penelitian ini, didapat pemurnian enzim papain sebesar 5.85 kali dengan aktivitas spesifik sebesar 0.000212899 U/mg. Kandungan protein hidrolisat protein dari limbah cair surimi menurun dari jam ke-0 hingga jam ke-48. Penurunan kandungan protein terbanyak terjadi pada konsentrasi penambahan enzim sebesar 1% (b/v) dengan penurunan kandungan protein dari 2220mg/L menjadi 498mg/L. Kandungan ammonia hidrolisat meningkat dari jam ke-0 hingga jam ke-48 dengan perlakuan terbaik terjadi pada konsentrasi penambahan enzim 1%(b/v) dengan kenaikan kandungan amonia tertinggi yakni dari 5.62mg/L menjadi 170.64mg/L. Kadar air hidrolisat mengalami kenaikan seiiring dengan bertambahnya konsentrasi enzim yang ditambahkan dalam limbah cair surimi dengan kisaran nilai 78.993% - 95.016%.
EKSTRAKSI SENYAWA FENOLIK DARI BAWANG PUTIH (Allium sativum L.) UNTUK AGEN ANTI-BIOFOULING PADA MEMBRAN Yusuf Wibisono; Ni'matul Izza; Dian Savitri; Shinta Rosalia Dewi; Angky Wahyu Putranto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 8 No 1 (2020): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.533 KB) | DOI: 10.29303/jrpb.v8i1.165

Abstract

Bawang putih mengandung beberapa zat yang bermanfaat bagi kesehatan manusia, salah satunya yaitu senyawa fenol. Senyawa fenol pada bawang putih memiliki peranan penting sebagai zat antibakteri yang dapat diproses selanjutnya sebagai agen antibiofouling membran. Metode ekstraksi yang tepat seperti kombinasi Microwave-Assisted Extraction (MAE) dan maserasi digunakan untuk mendapatkan senyawa fenol pada bawang putih. Namun demikian variasi rasio bahan dan pelarut serta lama waktu ekstraksi yang sesuai perlu diperhatikan dengan menggunakan kombinasi metode tersebut. Oleh karena itu tujuan penelitian ini yaitu mendapatkan ekstrak fenol dari bawang putih dengan variasi perlakuan rasio bahan dan pelarut serta lama waktu ekstraksi. Hasil ekstrak fenol kemudian dianalisis menggunakan ANOVA dan uji lanjut BNT. Selain itu penelitian ini juga melakukan karakterisasi hasil ekstrak fenol dengan FTIR untuk mengetahui gugus fungsi yang ada pada ektrak secara kualitatif dan PSA melakukan pengujian ukuran ekstrak fenol bawang putih. Berdasarkan hasil yang diperoleh, total fenol tertinggi sebesar 9,94±0,85 mg GAE/g berat kering dapat diperoleh dengan rasio pelarut 1:8 (b/v) dan waktu ekstraksi selama 2 menit. Berdasarkan analisis FTIR, ekstrak kering terdiri dari kelompok alkohol, sehingga dapat membuktikan secara kualitatif bahwa ekstrak tersebut memiliki senyawa fenol. Berdasarkan pengukuran dengan PSA, hasil ekstrak senyawa fenol bawang putih memiliki ukuran partikel sebesar 72,08±4,55 nm yang selanjutnya dapat digunakan sebagai agen pencegahan biofouling pada membran dengan tipe mixed matrix.
COGNITIVE IMPAIRMENT DETECTION IN ADULT THALASSEMIA PATIENT USING MOCA-INA Wardoyo, Chandra Calista; Gamayani, Uni; Ong, Anam; Rizal, Ahmad; Wibisono, Yusuf; Amalia, Lisda; Panigoro, Ramdan
Malang Neurology Journal Vol 7, No 1 (2021): January
Publisher : Malang Neurology Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.mnj.2021.007.01.6

Abstract

Background: Cognitive impairment in thalassemia patients are prevalent, therefore early detection of cognitive impairment in adult thalassemia patients is crucial for prevention. Montreal Cognitive Assessment (MoCA) is a public domain cognition screening tools that covers all cognitive domains in detecting mild cognitive impairments.Objective: To compare cognitive function between adult thalassemia patients and healty control by using Indonesia version of MoCA test (MoCA-Ina)Methods: This prospective observational analytic with case control study, compared the total scores and scores of each domain of cognition between adult thalassemia patients and healthy subjects at the Medical Hematology Oncology Clinic of Dr. Hasan Sadikin General Hospital, Bandung, Indonesia using MoCA-Ina from August to October 2018.Results: A total of 32 thalassemia subjects and 50 healthy subjects were conducted. A total of 16(50%) subjects in the case group had a value of MoCA-Ina <26, while only 1(2%) healthy control had a value of MoCA-Ina <26. The median total MoCA-Ina score in case and control groups were 25.5 and 27.50 (p <0.001). The median score of memory domains, executive functions and visuospatial of the case and control groups were 3 versus 4 (p <0.001), 3 versus 3.5 (p <0.001) and 3.53 ± 0.671 versus 3.88 ± 0.385 (p <0.003), respectively.Conclusion: Adults thalassemia patients have lower score in total MoCA-Ina, domains of memory, executive function and visuospatial score compared to healthy control.
Politik Ekonomi UU Perbankan Syariah Peluang dan Tantangan Regulasi Industri Perbankan Syariah WIBISONO, YUSUF
BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi
Publisher : UI Scholars Hub

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Abstract

Building an effective legal and regulatory framework for Islamic banking is imperative. Initiative to enact Islamic banking laws in Indonesia can be regarded in this respect. The objective of this paper is to examine the critical issues in Islamic banking laws. This paper examines and highlights the main features of Islamic banking laws. It is suggested that the main goal of the laws are to enhance Shari’ compliance and promoting stability of the system. Despite the progress achieved through this approach, it is recommended that Islamic banking development needs more efforts and initiatives. This paper also attempts to provide an analysis of future direction in the development of Islamic banking industry in Indonesia.
Kaitan Nyeri Kepala pada Wanita dengan Perubahan Kadar Hormon Wibisono, Yusuf
Cermin Dunia Kedokteran Vol 46, No 1 (2019): Obstetri - Ginekologi
Publisher : PT. Kalbe Farma Tbk.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (616.737 KB) | DOI: 10.55175/cdk.v46i1.541

Abstract

Nyeri kepala pada wanita berhubungan dengan hormonal milestones, yaitu menarche, kehamilan, pasca-persalinan dan menyusui, perimenopause, dan penggunaan pil kontrasepsi oral. Banyak bukti yang menghubungkan hormon (estrogen dan progesteron) dengan nyeri kepala pada wanita. Terapi dapat dimulai sejak pubertas saat awal siklus haid, sepanjang tahun reproduksi, dan juga perimenopause dan postmenopause. Menetapkan diagnosis nyeri kepala dipicu hormon sangat penting untuk perancangan strategi pengobatan secara efektif.Female headache is related to hormonal milestones throughout the reproductive life cycle and the use of oral contraceptive pills (OCPs). Considerable evidences have accumulated on the links between female ovarian steroid hormones estrogen and progesterone with headache. Therapeutic intervention may become necessary during puberty as menstrual cycles begin, throughout reproductive years, and at perimenopause and postmenopause. Establishing the historical features of hormonal triggered headache is critical in designing effective treatment strategies.
Nyeri Neuropatik Tungkai Wibisono, Yusuf
Cermin Dunia Kedokteran Vol 43, No 1 (2016): Neurologi
Publisher : PT. Kalbe Farma Tbk.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55175/cdk.v43i1.6

Abstract

Salah satu keluhan utama di Poliklinik Saraf Rumah Sakit Hasan Sadikin, Bandung, adalah nyeri neuropatik tungkai. Nyeri neuropatik tungkai dapat ditemukan pada penyakit-penyakit radikulopati lumbal, neuropati femoral, neuropati saphena, neuropati tibialis, dan neuropati peroneal. Nyeri neuropatik merupakan nyeri kronik yang biasanya diikuti oleh kerusakan jaringan. Pada nyeri neuropatik, serabut saraf dapat mengalami gangguan, disfungsi, ataupun kerusakan. Penatalaksanaan nyeri neuropatik pada tungkai meliputi terapi farmakologis dan non-farmakologis. Terapi farmakologis menggunakan analgesik adjuvan seperti  antikonvulsan, obat antidepresan golongan trisiklik, obat antidepresan generasi baru, dan anestesi lokal. Terapi non-farmakologis meliputi edukasi pasien, rehabilitasi, ataupun terapi bedah dengan indikasi.
Patomekanisme Akupunktur Analgesia Wibisono, Yusuf
Cermin Dunia Kedokteran Vol 44, No 2 (2017): Neurologi
Publisher : PT. Kalbe Farma Tbk.

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (609.726 KB) | DOI: 10.55175/cdk.v44i2.823

Abstract

Akupunktur telah dipraktikkan selama lebih dari 2000 tahun di Cina dan Jepang, termasuk sebagai salah satu pilihan terapi penghilang nyeri; akupunktur baru diterima sepenuhnya sebagai suatu terapi secara ilmiah pada ilmu kedokteran Barat sekitar tahun 1980-an. Akupunktur sebagai modalitas terapi nyeri dapat dijelaskan melalui berbagai mekanisme, yaitu mekanisme segmental medula spinalis, mekanisme sistem serotonergik, mekanisme sistem noradrenergik, dan kontrol inhibisi impuls noksius yang menyebar (diffuse noxious inhibitory controls/DNIC).Acupuncture has been practiced in China and Japan since more than 2000BC for many kind of symptoms including pain, and fully accepted scientifically as treatment in western medicine in 1980s. Four mechanisms underlying the analgesic effect of acupuncture are spinal segmental mechanism, noradrenergic mechanism, serotonergic mechanism, and diffuse noxious inhibitory controls/DNIC mechanism.
Pengelolaan Pajak Kendaraan Bermotor untuk Peningkatan Pendapatan Asli Daerah (PAD) di Kabupaten Lumajang Wibisono, Yusuf
Jurnal Ilmu Manajemen Advantage Vol. 3 No. 1 (2019): Juni 2019
Publisher : Institut Teknologi dan Bisnis Widya Gama Lumajang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.774 KB) | DOI: 10.30741/adv.v3i1.436

Abstract

The management of motor vehicle tax to increase PAD in Lumajang Regency Entering the era of regional autonomy (Otoda) as it is now, the Regional Government is given extensive authority to carry out development programs and at the same time to realize community welfare. Funding for development programs in the area comes from various regional revenues. Among the sources of income are taxes. The tax that is excellent because it has great potential, positive and significant impact on the PAD is motor vehicle tax. The purpose of this study was to determine the development and contribution of motor vehicle tax to PAD in Lumajang Regency over the past two years. This study uses a qualitative descriptive approach, the research method uses interview methods and documentation. Also supported by a literature review that is relevant to the subject matter. From the results of the study, it is known that the management of motor vehicle tax in Lumajang Regency runs well and successfully surpasses the target every year. This is very useful to contribute to the PAD of Lumajang Regency. The strategies and policies pursued by the government to increase motor vehicle tax, among others, by improving the management of motor vehicle tax, both Human Resources (HR) and bureaucracy. Improve services with the use of technology and so on.
Co-Authors ahmad rizal Ahyuni, Putri Khumairotul Anam Ong Angky Wahyu Putranto Dian Savitri Fetri Setyo Liyundira Gunomo Djoyowasito La Choviya Hawa Lisda Amalia NANI HANIFAH Ni'matul Izza Noviansyah Rizal Nurwindi, Linda Luvi Ramdan Panigoro Septiani, Veria Shinta Rosalia Dewi Sholihun, M. Sukoyo, Agung Sumardi Hadi Sumarlan Uni Gamayani, Uni Wardoyo, Chandra Calista