Publication Search

64,628 articles from 527 journals · 1,699 citations tracked

Showing 2341-2360 of 2,557

Analytics

Ulfan Ulfan; IBN Udayana; Bernadetta Diansepti Maharani

Jurnal Riset Rumpun Ilmu Ekonomi 2022 Lembaga Pengembangan Kinerja Dosen

This study aims to examine the Physical Aspects, Personality Interaction, Problem Solving, mediated by Customer Satisfaction against Customer Loyalty. The data used in this study used data obtained from questionnaires distributed to customers at Mirota Campus, DI Yogyakarta. The number of questionnaires distributed in this study to 220 respondents. The research data were analyzed using multiple linear regression analysis using the SPSS 25 program. The results of this study indicate (X1) Physical Aspects not have a positive effect on (Z) Customer Satisfaction. (X2) Personality Interaction has a positive effect on (Z) Customer Satisfaction. (X3) Problem Solving has a positive effect on (Z) Customer Satisfaction. (Z) Customer Satisfaction directly has a positive effect on (Y) Customer Loyalty. (X1) Physical Aspects through (Z) Customer Satisfaction has a significant influence on (Y) Customer Loyalty. (X2) Personality Interaction through (Z) Customer Satisfaction has a significant influence on (Y) Customer Loyalty. (X3) Problem Solving through (Z) Customer Satisfaction has no significant effect on (Y) Customer Loyalty and service quality mediated by costumer satisfaction (Z) on costumer loyalty (Y) has a positive effect.

Andi Ernawati Manuntungi; Andi Kamal

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

Menurut Kementerian Kesehatan, kasus pneumonia pada bayi yang terjadi pada tahun 2018 berjumlah 160.908 jiwa dan dibagi menjadi dua klasifikasi yaitu pneumonia ringan dan pneumonia berat. Pada kasus Pneumonia ringan Sulawesi Tenggara menduduki peringkat 14 tertinggi dengan jumlah penderita Pneumonia sebanyak 1.088 orang, Jawa Barat (60.941), Jawa Timur (25.951), DKI Jakarta (13.564), NTB (8.238), Banten ( 7.893), Jawa Tengah (5.307), Sumatera Selatan (4.425), Kalimantan Selatan (3.632), Sumatera Barat (3.571) Pneumonia adalah infeksi akut jaringan paru (alveoli). Penyebabnya adalah bakteri, virus, jamur, paparan bahan kimia atau kerusakan fisik dari paru-paru dan efek tidak langsung lainnya. Penelitian ini menggunakan desain studi kasus kontrol yaitu mempelajari hubungan antara faktor penelitian atau pajanan dengan penyakit dengan membandingkan antara kelompok kasus dan kelompok kontrol berdasarkan status pajanan. Hasil analisis bivariat pada SPSS menggunakan chi-square menunjukkan = 0,06 yang berarti ada hubungan antara umur bayi, pemberian ASI eksklusif, status imunisasi dan lingkungan dengan kejadian pneumonia pada bayi di RSUD Kab.Mamuju, sehingga disarankan kepada ibu untuk memberikan Asi Eksklusif pada bayi, pemberian imunisasi dan menjaga kebersihan lingkungan Ada hubungan antara umur dengan kejadian pneumonia pada bayi, ada hubungan antara pemberian ASI eksklusif dengan kejadian pneumonia pada bayi, ada hubungan status imunisasi dengan kejadian pneumonia pada bayi, ada hubungan antara lingkungan dengan kejadian pneumonia pada balita.

Sirajuddin Hawari; Abdullah Ammar; Ahmad Nur Ihsan Purwanto; Aaqila Dhiyaanisafa Goenawan

JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA 2022 Pusat Riset dan Inovasi Nasional

In today's era, information exchange is fast and can be done in various ways and one of them is using email. There are many free email service providers that can be used, such as Gmail, Yahoo Mail and Outlook. In addition to free services, email servers can also be used to serve communication between clients and transfer data over the local network using a custom domain for the company. The purpose of this report is to build your own email server using the server development method using the Linux Ubuntu 18.04 operating system and the software Postfix and Dovecot as its supports. The results of this mail server work can send emails from one user to another through the terminal directly correctly. Sending can be done directly using the terminal without creating a text first or creating a text before sending it. Both ways are equally successful in the main process in the mail server.

Avrijsto Amandri Achyar; Ali Muhammud Olow; Muhammad Rizky Perdana; Andika Sundawijaya; Aaqila Dhiyaanisafa Goenawan

JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA 2022 Pusat Riset dan Inovasi Nasional

Humans have various types which are called races. The human race can be identified by many things, from the shape of the body to the color of the body. Of the many ways to identify the human race, the author also thinks whether a computer can identify the human race based on skin color. Nowadays, computers have developed in such a way that there are many possibilities that computers can also do this.

Meliana Indah Sari; Abdi Setiawan; Putri Aprilia; Rusmaini

The International Conference on Education, Social Sciences and Technology 2022 International Forum of Researchers and Lecturers

The purpose of this community research is to increase community understanding of the concept of trading goods in the domestic market through the digital economy so that there is an increase in income to the community in Kota Pari Village, Pantai Cermin District, Serdang Bedagai Regency. The specific target of this community research is that the village community knows the concept of trading goods in the domestic market and the digital economy, for example in the traditional market closest to the settlement and the village area markets, and how the trade can expand its marketing network. The materials to be presented in this research are: Domestic market goods trading and the digital economy are related to increasing community income through community knowledge and skills related to the prices of agricultural products and home industry business products that will be traded throughout the village and urban areas. From this research, it is hoped that the community in Kota Pari Village, Pantai Cermin Subdistrict, Serdang Bedagai Regency, can know and understand the impact of domestic market trade in goods, such as the selling price of agricultural products, home industry business products, or other business products to increase the community's income.

Kresna Ningsih Manik; Merry Susanty Br Tarigan

Jurnal Pengabdian Masyarakat Indonesia Sejahtera 2022 STAI YPIQ BAUBAU, SULAWESI TENGGARA

This program took place from February 21 to 23, 2022, in the XVIII neighborhood, Binjai Village, Denai District, Medan Regency/City, North Sumatra Province. The program is designed for children aged 8-12, and the materials taught include Simple Present Tense and several songs that utilize Simple Present Tense. The duration of each session is 90 minutes. The number of children involved is approximately ten (10) individuals. Each session is divided into two parts, the first 45 minutes facilitated by Teacher A, and the remaining 45 minutes continued by Teacher B, and so on until the third day. Upon completion of this program, the children showed significant improvement in listening skills, vocabulary recall, and vocabulary memorization, as reflected in the test scores given by the instructors before and after the program. Learning through English songs has proven to be highly effective for children in the XVIII neighborhood, Binjai Village, Denai District. The use of songs as a teaching method helps enhance listening abilities, learn new vocabulary, develop speaking skills, and improve social skills in children. Therefore, incorporating songs into early English language learning is highly recommended.

Sandri Sastrawan; Fita Ridhana; Erita; Nugroho Pitriyanto

JURNAL RISET RUMPUN ILMU HEWANI 2022 Pusat riset dan Inovasi Nasional

Penelitian bertujuan untuk mengetahui proses dan cara pengolahan limbah kotoran sapi bali menjadi teknologi tepat guna yakni biogas. Biogas merupakan energy alternative pengganti gas LPG pada masyarakat khususnya pada Kampung Paya Tungel Kecamatan Jagong Jeget Kabupaten Aceh Tengah. Metode penelitian menggunakan metode survey yang bertujuan untuk memudahkand alam menggali informasi terkait teknik pengolahan limbah kotoran sapi bali menjadi biogas. Dari hasil penelitian menunjukkan bahwa peternak yang telah melakukan produksi pada limbah kotoran sapi bali mereka berdampak positif pada perekonomian. Yakni penghematan pada pengguaan dan ketergantungan pada gas LPG atau kayu bakar serta limbah sisa pengolahan biogas dapat digunakan menjadi pupuk organi cair (POC) dalam pertanian.    

Askura Nikmah; Fita Ridhana2; Rusli; Bahtra Ruhmiko

JURNAL RISET RUMPUN ILMU HEWANI 2022 Pusat riset dan Inovasi Nasional

Usaha pemotongan hijauan pakan ternak di desa Paya Tumpi Kecamatan Kebayakan Kabupaten Aceh Tengah telah berdiri sejak 2018. Usaha pakan ternak sapi potong sebagian besar masih merupakan usaha peternakan rakyat yang dipelihara secara tradisional bersama tanaman pangan. Tujuan dari penelitian ini adalah untuk mengetahui Analisis Pendapatan Pemotong Hijauan Pakan Ternak Kecamatan Kebayakan Kabupaten Aceh Tengah (Studi Kasus Usaha Bahagia Di Kampung Paya Tumpi)”. Metode pengambilan sampel menggunakan metode studi kasus (terfokus pada suatu kasus). Metode analisa data menggunakan analisi pendapatan dan B/C ratio. Hasil penelitian menunjukan bahwa usaha pemotongan hijauan pakan ternak di desa Paya Tumpi Kecamatan Kebayakan Kabupaten Aceh Tengah adalah layak untuk di usahakan dan layak untuk dikembangkan. Hal ini berdasarkan nilai (B/C Ratio) B/C > 1 yakni dengan nilai B/C ratio 4.2    

Idham Noviandi; Fita Ridhana; Erita; Nasrullah

JURNAL RISET RUMPUN ILMU HEWANI 2022 Pusat riset dan Inovasi Nasional

  Addition of Palm Enzymes in with Different Variations in Chicken Performance of Undergraduate. The purpose of this study was to determine the effect of giving palm oil enzymes to the weight gain of broiler chickens. the consumption of broiler chicken feed. To determine the administration of palm enzymes influence the increase in broiler chicken feed conversion. The design used in this study was a Completely Randomized Design (CRD), the provision of Palm Enzymes and without the provision of Palm Enzymes. By giving chicken ration given to Broiler Chicken P0: Without the addition of 0% palm enzyme (control), P1: addition of 25 ml palm enzyme + 75 commercial feed, P2: addition of 50 ml palm enzyme + 50 commercial feed P3: addition of palm enzyme 75 ml + 25 commercial feed. On the parameters of observation of body weight, feed consumption and broiler chicken feed conversion obtained during the study were best found in treatment P1: addition of 25 ml palm enzyme + 75 commercial feed. In the sidik analysis, the various effects of body weight, feed consumption and feed conversion between treatments different significantly.    

Anggraeni Puji Safitri; Andung Maheswara Rakasiwi

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

Bell's palsy is a neurological disorder and disorder of the cranial nerve VII (facial nerve) in the temporal bone area that causes weakness or paralysis of the facial muscles around the stylomastoid foramen. The cause is not known to be vascular ischemia, viral disease (Herpes simplex, Herpes zoster), autoimmune disease, or a combination of these factors. The purpose of this study was to determine the effect of Physiotherapy Management in Bell's Palsy with Infra Red, Electrical Stimulation of Faradic Current and Exercise Therapy as modalities. The study was conducted at Bendan Hospital, Pekalongan City with descriptive analytic method in patients with Bell's Palsy condition. Methods of collecting research data using autoanamnesis and physical examination. The research instrument consisted of examining pain using the Visual Analogue Scale, muscle spasm with palpation, muscle strength using manual muscle testing, and functional activity using the Ugo Fisch scale. After therapy 1 to therapy 4 there was a decrease in pain from T1 = tenderness 4 to T4= tenderness 0. Increased facial muscle strength T1 = m. orbicularis oculi 3 to T4 = m.orbicularis oculi 5. Decreased muscle spasm T1 = m. frontalis 1, m. corrugator supercilli 1, m. zygomaticum 1, m. orbicularis oris 1, m. mentality 1 to T4 = m. frontalis 0, m. corrugator supercilli 0, m. zygomaticum 0, m. orbicularis oris 0, m. mentalis 0. The conclusion is Infra Red, Electrical Stimulation of faradic currents and Exercise Therapy can reduce pain, decrease muscle spasm and increase muscle strength on Bell’s Palsy Sinistra.

Andi Hasnah; Suriani Tahir

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

 Anxiety in the face of labor cannot be separated from the knowledge and readiness of the mother before delivery. Mothers who have good knowledge and readiness about childbirth will take care of their pregnancy and prepare whatever is needed to face childbirth, so as to minimize maternal anxiety before delivery. Anxiety arising from lack of knowledge, such as information about pregnancy and childbirth, will have an impact on maternal unpreparedness, and will trigger a high rate of pathological pregnancies and increase the number of maternal and child deaths. (Rohani et al, 2013).

Maulidya, Riska; Yeni, Laili Fitri; Titin, Titin

JOURNAL OF BIOLOGY LEARNING 2022 Universitas Veteran Bangun Nusantara Sukoharjo

This study aims to find out the feasibility of flash flipbook media based on the results of macroscopic fungi inventory found in the Mount Pemangkat Protected Forest, Sambas Regency. The form of research used is quantitative descriptive methods. The creation of flash flipbook media is enriched with the richness of local fungi found in the Protected Forest of Mount Pemangkat, Sambas Regency. Flash flipbook media is validated by five validators, including two lecturers of Biology Education Tanjungpura University and three high school teachers who were determined using purposive sampling techniques. Flipbook flash media validation sheets are assessed using the Likert scale and data analysis based on the Lawshe Formula (1975). Validation of flash flipbook media obtained a CVI (Content Validity Index) value of 0.94, so it is declared feasible and can then be used as a learning medium in the fungi classification sub-material and provide additional information about the diversity of mushrooms in the surrounding environment for students of class X high school.

FR Wuriningsih

Jurnal Suara Pengabdian 45 2022 LPPM Universitas 17 Agustus 1945 Semarang

Learning activities outside the classroom (Outdoor Study) and outside reading book texts will create a different atmosphere and understanding. One of the ways to study outdoors is to visit museums, the museum informs the public, especially students and teachers, about history classes. Museums are the best place to find historical sources, feel more grateful, get to know the world more broadly. The purpose of this community service writing is to disseminate information about the existence of the OSF Semarang Mission Study House as an alternative to visit, as an interesting place and provide additional knowledge. The methods used in this activity are preparation, visit and evaluation. The result of this dissemination is that the OSF Semarang Study house is an interesting place to visit with relics of interesting items to be known by students and the visiting public. Arrangement of items in a neat and attractive room will make students and the public feel at home and will visit again

Diah Novianti

Jurnal Suara Pengabdian 45 2022 LPPM Universitas 17 Agustus 1945 Semarang

Bank Syariah merupakan salah satu bank umum yang  kegiatan operasional dan produk-produknya bebas dari bunga dan berlandaskan hukum syariah. Peningkatan jumlah Bank Umum Syariah yang diiringi dengan peningkatan jumlah kamtor cabang ternyata tidak diimbangi dengan peningkatan pengetahuan masyarakat terhadap bank syariah. Belum optimalnya penyerapan pangsa pasar Bank Syariah di negera yang mayoritasnya beragama Islam merupakan permasalahan yang dihadapi perbankan syariah. Rendahnya literasi perbankan syariah yang disebabkan kurangnya promosi dari perbankan syariah kepada masyarakat menjadi salah satu penyebab hal tersebut. Masyarakat Parit lalang mayoritas beragama Islam tetapi pengetahuan mereka tentang perbankan syariah pada masyarakat sangat rendah. Hal ini yang menjadi alasan pelaksanaan program peningkatan literasi produk bank syariah pada masyarakat Kelurahan Parit Lalang. Penelitian bertujuan untuk mengetahui peningkatan literasi produk bank syariah setelah program dilaksanakan. Hasil pelaksanaan program adalah adanya peningkatan pengetahuan masyarakat terkait produk bank syariah dan juga peningkatan minat masyarakat untuk bertransaksi di perbankan syariah.    

Adisetya, Erista; Krisdiarto, Andreas Wahyu

JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) 2022 Universitas Slamet Riyadi Surakarta

The quality of coconut sap (nira) is a significant aspect of the manufacturing of palm sugar. Coconut nira deteriorates fast, and handling nira in the field is challenging due to the long duration of the tapping process, and coconut trees are high, making it tough to reach. The use of natural preservatives to nira help in the preservation of its quality prior to processing. The objectives of this study are to 1) develop a natural coconut nira preservatives formula from mangosteen yellow latex and 2) evaluate the dose of preservatives necessary to maximize nira's shelf life. The study employed a randomized complete analysis with four preservative concentrations of 0%, 1%, 1.5%, and 2%. and four different storage durations: zero hours, six hours, twelve hours, and twenty-four hours.  Chemical analysis of pH, total acid, total sugar, and reduced sugar was performed, as well as sensory evaluation. The study concluded that yellow mangosteen latex can help in the preservation of coconut nira. Preservative concentrations of 1.5% and 2% are still acceptable in 12 hours of storage. While a concentration of 1% is allowed for storage of up to 6 hours. If no preservatives are applied, nira should be processed shortly after harvesting. Nira's quality is deplorable after 24 hours of storage.

Yurisna, Vincentia Chandra; Nabila, Fitria Syehrin; Radhityaningtyas, Dara; Listyaningrum, Fauzia; Aini, Nur

JITIPARI (Jurnal Ilmiah Teknologi dan Industri Pangan UNISRI) 2022 Universitas Slamet Riyadi Surakarta

Bunga telang (Clitoria ternatea L.) adalah salah satu flora khas yang berasal dari Ternate, Maluku dengan ciri kelopak bunga yang berwarna ungu, putih, merah muda, maupun biru. Bunga telang banyak dimanfaatkan sebagai obat tradisional sebab memberikan banyak manfaat bagi kesehatan manusia. Selain itu, bunga telang juga sering diaplikasikan pada produk pangan sebagai pewarna alami. Bunga telang kaya akan komponen-komponen bioaktif, seperti flavonoid, tannin, dan antosianin. Potensi bunga telang sebagai zat anti bakteri disebabkan oleh keberadaan komponen bioaktif pada bunga telang yang memiliki kemampuan untuk menghambat aktivitas biologis mikroorganisme. Ekstrak bunga telang dapat menghambat pertumbuhan bakteri Klebsiella pneumonia, Bacillus subtilis, Pseudomonas aeruginosa, Streptococcus agalactiae, Escherichia coli, Aeromonas hydrophila, Aeromonas formicans, Bacillus cereus, Salmonella typhi, Staphylococcus aureus, dan Proteus vulgaris. Ekstraksi bunga telang diperoleh dengan menggunakan metode maserasi. Metode maserasi mampu menghindari kerusakan senyawa-senyawa termolabil karena dilakukan pada temperatur rendah. Potensi bunga telang sebagai zat antimikroba banyak diterapkan di bidang pangan, baik dalam bentuk penambahan ekstrak pada produk pangan maupun mikrokapsul antosianin.

Innsanur Resi Darmawan

JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA 2022 Pusat Riset dan Inovasi Nasional

In this study, an electric motorcycle has been successfully designed using a 48 V 25 Ah Lithium Polymer Battery. With the advantages possessed by this battery, it is hoped that it can help get a high level of efficiency during testing. This battery will later bear the burden of a BLDC motor with a power of 3 KW. In this test, 2 tests were carried out, namely with and without load. The results obtained are the efficiency value at no-load is 12.35% at the maximum speed of 40 Km/hour and 17.2% at the same speed under load conditions. With these results, it proves that the faster the motorbike goes, the higher the efficiency value will be due to the smaller torque so that it saves battery power.

Alice Luhulima; Amelia Niwele; Sartika Sari Kadimas

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

Anggur laut (Caulerpa racemosa) merupakan salah satu jenis tumbuhan yang bermanfaat untuk pengobatan terapi, anggur laut (Caulerpa racemosa) mengandung senyawa kimia yang berfungsi sebagai antibakteri seperti alkaloid, flavanoid, tanin, saponin dan steroid. Antibakteri adalah zat yang menghambat dan membunuh. Bakteri Staphylococcus aureus merupakan bakteri gram positif yang menyebabkan infeksi bernanah pada kulit manusia. Penelitian ini merupakan penelitian experimental laboratorium. Penelitian menggunakan ekstrak kental etanol 70% anggur laut (Caulerpa racemosa), variasi konsentrasi ekstrak yaitu 20%, 40%, 60%, dan 80%, untuk kontrol negatif menggunakan aquades dan untuk kontrol positif menggunakan cloramphenicol. Pada pengujian antibakteri ekstrak etanol 70% anggur laut (Caulerpa racemosa) terhadap bakteri Staphylococcus aureus menunjukan bahwa pada konsentrasi 80% dan 60% sensitif untuk menghambat pertumbuhan bakteri dengan diameter zona hambat sebesar 32 mm dan 29 mm, sedangkan konsentrasi 20% dan 40% intermedian menghambat pertumbuhan bakteri dengan diameter zona hambat 24 mm dan 26 mm. Kontrol negatif tidak terjadi aktifitas antibakteri dan tidak memiliki diameter zona hambat, kontrol positif mempunyai diameter zona hambat yaitu sebesar 30 mm. Dari hasil tersebut maka anggur laut (Caulerpa racemosa)berfungsi sebagai antibakteri.

Jayanti Djarami; Marisa Anggia Ibrahim; Sri Rahmatia Mamulaty

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

Lotion adalah sediaan kosmetik pelembab kulit yang termasuk dalam golongan emolien dan memiliki beberapa sifat yaitu sebagai sumber lembab bagi kulit. Rumput laut jenis Eucheuma cottoni termasuk dalam golongan ganggang merah (Rhodophyceae) penghasil karaginan. Karaginan merupakan hidrokoloid yang penting karena memiliki aplikasi yang sangat luas dalam industri pangan dan nonpangan. Penelitian ini bertujuan untuk memformulasikan lotion dari ekstrak rumput laut (Eucheuma cottonii) dengan variasi konsentrasi emulgator. Jenis penelitian adalah eksperimen. Metode yang digunakan meliputi penyiapan bahan, ekstraksi sampel, rancangan formulasi dan pembuatan sediaan lotion menggunakan tiga formulasi yang berbeda dengan variasi konsentrasi emulgator asam stearate dan setil alkohol FI (2% : 1%), FII (5% : 1,5%), FIII (7,5% : 2%), evaluasi sediaan (uji organoleptik, uji homogenitas, uji pH) dan pengujian iritasi. Hasil penelitian lotion ekstrak rumput laut (Eucheuma cottoni)dengan menggunakan perbandingan konsentrasi emulgator pada formulasi I (Asam stearat 2%, setil alkohol 1%) dan formulasi III (Asam stearat 7,5%, setil alkohol 2%) menghasilkan sediaan dengan stabilitas yang baik. Dari ketiga formulasi dinyatakan bahwa formulasi I dan III sesuai persyaratan uji stabilitas fisik meliputi uji organoleptik, uji homogenitas, dan uji pH sedangkan pada formulasi II untuk uji organoleptik tidak sesuai dengan pengujian organoleptik sediaan dan uji iritasi ketiga sediaan lotion ekstrak rumput laut pada 10 responden tidak menimbulkan adanya iritasi seperti kemerahan, gatal-gatal dan bengkak pada kulit.

Jamila Fachrunisa Kabakoran; Djulfikri Mewar; Stacia Kikalessy

Jurnal Rumpun Ilmu Kesehatan 2022 Pusat Riset dan Inovasi Nasional

Bulu babi (Diadema setosum) biasa disebut landak laut (Sea urchin/uni) adalah kelompok hewan laut dari filum Echinodermata yang dikonsumsi gonadnya (Telur) oleh masyarakat Desa piru, Dusun Telaga, Dusun Pulau Osi. Vitamin C adalah zat yang dibutuhkan oleh tubuh yang berperan sebagai zat antioksidan. Tujuan dari penelitian ini yaitu untuk mengetahui kadar vitamin C pada bulu babi (Diadema setosum). Metode penelitian ini adalah analitik experimental dilakukan analisis kuantitatif menggunakan metode spektrofotometri Uv-Vis. Penelitian ini dilakukan dengan konsentrasi 3, 5,7, 9 dan 11ppm dengan panjang gelombang 200-400nm dengan hasil panjang gelombang yang dipakai adalah 265nm dengan nilai absorbansi pada konsentrasinya 0,016 ; 0,029 ; 0,044 ; 0,052 ; dan 0,069. Hasil penelitian kandungan vitamin C pada gonad bulu babi Desa Piru adalah 11.904 mg gonad bulu babi Dusun Telaga adalah 13.098 mg dan gonad bulu babi Dusun Pulau Osi adalah 13.120 mg. Berdasarkan hasil penelitian menunjukkan bahwa gonad bulu babi mengandung kadar vitamin C pada gonad bulu babi di Dusun Pulau osi lebih tinggi dibandingkan gonad bulu babi Desa Piru dan Dusun Telaga. Penelitian ini dilakukan berdasarkan faktor pengambilan acak dan faktor lingkungan perairan pada bulu babi (Diadema setosum) .