Boy Rahardjo Sidharta

ORCID: 0000-0002-6038-6588
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Research Areas
  • Medicinal Plant Research
  • Marine and Coastal Ecosystems
  • Natural Products and Applications
  • Agricultural and Biological Research
  • Aquatic life and conservation
  • Agriculture and Agroindustry Studies
  • Quinazolinone synthesis and applications
  • Heavy Metal Pollution Remediation
  • Water Quality Monitoring and Analysis
  • Food and Agricultural Sciences
  • Marine and coastal ecosystems
  • Morinda citrifolia extract uses
  • Biofuel production and bioconversion
  • Saffron Plant Research Studies
  • Agricultural and Environmental Management
  • Ginger and Zingiberaceae research
  • Essential Oils and Antimicrobial Activity
  • Tannin, Tannase and Anticancer Activities
  • Pharmacology and Nanomedicine Research
  • Medicinal Plants and Neuroprotection
  • Hedgehog Signaling Pathway Studies
  • Microbial Community Ecology and Physiology
  • Microplastics and Plastic Pollution
  • Algal biology and biofuel production
  • Alkaloids: synthesis and pharmacology

Atma Jaya University Yogyakarta
2008-2024

Penggunaan antibiotik secara terus menerus dapat menimbulkan resistensi pada bakteri. Salah satu bahan alami yang menjadi alternatif pengobatan adalah madu klanceng. Penelitian ini bertujuan untuk mengetahui sediaan salep klanceng optimal dan efeknya terhadap penyembuhan luka infeksi disebabkan oleh Tahapan penelitian terdiri dari uji fitokimia madu, pembuatan salep, kemurnian bakteri, zona hambat, bioassay kelinci. Madu diuji mengandung senyawa alkaloid. Variasi dibuat dengan perbandingan...

10.24002/biota.v4i3.2520 article ID cc-by-nc-sa Journal of Biota 2019-11-08

Bioetanol dapat diproduksi dari hasil fermentasi bahan baku yang mengandung karbohidrat. Umbi talas (Colocasia esculenta (L.) Schott) memiliki karbohidrat cukup tinggi yakni 23,7% sehingga dimanfaatkan sebagai penghasil bioetanol. Zymomonas mobilis merupakan mikrobia mengubah glukosa menjadi etanol. Penelitian ini bertujuan mengetahui konsentrasi inokulum dan waktu paling optimal untuk menghasilkan bioetanol pati umbi talas. dipotong, dikeringkan dihancurkan lalu diayak sampai berbentuk...

10.24002/biota.v5i2.2506 article ID cc-by-nc-sa Journal of Biota 2020-08-02

Red ginger (Zingiber officinale var. rubrum) has been proven to show anticancer activity. Direct use bioactive compound from red many obstacles such as large amount of ginger’s rhizome needed, limitation planting area, and very long time harvesting. Utilization endophytic fungi could be an alternative the problems. The aims this study were determine produced by toxicity activity based on LC50. Endophytic isolated identified macroscopically microscopically. compounds extracted using ethanol...

10.24252/bio.v7i1.6000 article EN Biogenesis Jurnal Ilmiah Biologi 2019-06-30

Astaxanthin (AX) is known as a very strong antioxidant and has been utilised in many kinds of products such foods, pharmaceutical, cosmetics, aquaculture, etc. One the natural resources AX Haematococcus pluvialis which investigated by some researchers order to enhance production. However, production from microalgae still costly, hence, this present research proposing low-cost methods namely bean sprout media (BSM) an alternative growth UV radiation. The variations BSM concentrations (2, 4, 6...

10.22146/jtbb.73763 article EN cc-by-sa Journal of Tropical Biodiversity and Biotechnology 2024-01-26

Euodia suaveolens is one of the plants that ancient people in Indonesia used due to its manifold benefits.Earlier research on this plant was mostly done potency as a mosquito repellent.This present study aims determine phytochemical and antibacterial analyses essential oils (EOs) extracted from leaves E. suaveolens.The EOs were by steam distillation method analyzed phytochemically utilizing GC-MS technique chemical constituents.The components tested four pathogenic bacteria Escherichia coli,...

10.12928/pharmaciana.v14i2.25827 article EN cc-by-sa Pharmaciana 2024-07-23

Industri batik domestik menghasilkan limbah cair yang umumnya pengolahannya tidak dilakukan dengan baik sehingga tersebut mencemari badan air. Salah satun kandungan logam berat pada industri adalah timbal (Pb). Fikoremediasi menggunakan mikroalga Skeletonema costatum salah satu solusi menurunkan kadar Pb. Percobaan penelitian RAL (rancangan acak lengkap) tiga kali pengulangan selama 7 hari perlakuan variasi kepadatan inokulum berupa V1 (kontrol, tanpa pemberian mikroalga), V2 (kepadatan...

10.24002/biota.v5i1.2950 article ID cc-by-nc-sa Journal of Biota 2020-06-11

<p>The increase of temperature might affect the distribution and reproduction seagrass. This research aims to determine seagrass bed coverage ecosystem condition. Three line transects were established perpendicular coastal with distance 50-100 m, or up border intertidal area. In each transect, sampling points determined a 10-20 m. At points, plot 50 cm<span style="text-decoration: underline;"> </span>x cm was measure percentage vegetation. The species also observed recorded...

10.28930/jitkt.v5i1.7744 article EN Jurnal Ilmu dan Teknologi Kelautan Tropis 2013-07-01

Harmful Algal Bloom (HAB) incidences in Indonesian waters were increasingly occurred from time to time. Extensive and continous studies this field are needed be done more areas the country. This objective of present survey determine occurrence potential toxic harmful marine microalgae Lombok, reveal diversity found area, give some information on HAB phytoplankton Lombok island. Plankton samples taken six stations Lembar bay, February, 2007. 23 species two those potentially toxic, namely...

10.14203/mri.v32i2.455 article EN Marine Research in Indonesia 1970-01-01

The increase of temperature might affect the distribution and reproduction seagrass. This research aims to determine seagrass bed coverage ecosystem condition. Three line transects were established perpendicular coastal with distance 50-100 m, or up border intertidal area. In each transect, sampling points determined a 10-20 m. At points, plot 50 cm x was measure percentage vegetation. species also observed recorded along transects. measured using method from Saito Atobe (1994). results...

10.29244/jitkt.v5i1.7744 article EN Jurnal Ilmu dan Teknologi Kelautan Tropis 2013-07-01

Ten surface sediment samples were collected from Jakarta Bay to study the horizontal distribution of dinoflagellate resting cysts in this area. Overall results had shown unique species composition and diversity cyst assemblages. However, found preliminary research sparse relatively low term number concentrations. Twenty morphophites identified research, within which ten belong autotrophic another heterotrophic species. Protoperidinium most diversified group, predominating almost sampling...

10.14203/mri.v33i1.509 article EN Marine Research in Indonesia 2008-06-30

Tanaman suku Rubiaceae merupakan tanaman yang banyak digunakan sebagai obat tradisional. Kandungan senyawa aktif ada dalam meliputi alkaloid, flavonoid, saponin, tanin, fenol, dan minyak atsiri (antrakuinon) berpotensi antibakteri. alkohol hand sanitizer beredar di pasaran memberi rasa iritasi terbakar pada kulit jika secara terus menerus sehingga inovasi dari dapat dijadikan alternatif untuk membersihkan tangan. Hasil literature review ini menunjukkan bahwa ekstrak sediaan diuji aktivitas...

10.24002/biota.v6i2.4165 article ID cc-by-nc-sa Journal of Biota 2021-06-10

<p>Softcoral has a potency as the new source of bioactive compound. This research aims to study antibacterial activity from several softcorals. Samples were identified Sinularia, Sarcophyton and Lobophytum taken Tulamben, Bali. extracted by maceration technique with methanol (70, 80, 96%) dried rotary evaporation. Antibacterial extracts was tested agar diffusion method pathogenic bacteria such Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus,and Streptococcus pyogenes....

10.18502/kls.v2i1.240 article EN KnE Life Sciences 2015-09-20

Kajian “Inventarisasi Ikan Hias di Pantai Gunungkidul, Daerah Istimewa Yogyakarta (DIY)” ini diharapkan dapat memberikan data yang lebih akurat dan tepat tentang keberadaan ikan hias kawasan ini. Kawasan kajian berdasar survei kawasan/lingkungan menetapkan delapan (8) pantai Kabupaten Gunungkidul sebagai lokasi kajian. Dari tersebut didapat sebanyak 67 jenis hias. Temuan seyogianya segera ditindaklanjuti oleh pihak berwenang dalam bentuk penetapan rencana strategis (renstra) terkait...

10.24002/biota.v16i1.68 article ID cc-by-nc-sa Journal of Biota 2011-02-01

Paroki Santa Theresia Lisieux (STL) Boro terletak pada area pengembangan pariwisata sehingga berpotensi menjadi desa wisata dengan amenitas khas berupa jahe emprit. Produksi ini memiliki keterbatasan kuantitas, kontinuitas, dan kualitas karena minimnya pengetahuan ketrampilan petani dalam penanaman pemeliharaan tanaman serta pengolahan rimpang produk jadi. Fakultas Teknobiologi, Universitas Atma Jaya Yogyakarta memberikan pelatihan pendampingan untuk memperbaiki di STL Boro. Pelatihan dibagi...

10.24002/jai.v3i5.7594 article ID cc-by-sa Jurnal Atma Inovasia 2023-09-29

This present research was trying to determine the antibacterial compounds from several brown seaweeds Drini beach. Previous studies have shown that this beach were proved activities. Therefore, it needs be studied whether extracts of utilizing three (3) kinds extraction solutions such as aquadest, ethanol, and hexane, will also show The chosen based on difference polarization Research design utilized randomized complete block data compiled treated by Anova followed with Duncan’s Multiple...

10.24002/biota.v13i1.2614 article EN cc-by-nc-sa Journal of Biota 2009-02-22

Kemajuan dan perkembangan di bidang Biologi Molekuler semakin menjadi jelas ketika banyak negara (setidaknya beberapa Eropa, terutama Inggris serta Amerika Serikat) terlibat dalam suatu proyek mahabesar yang bertajuk Human Genome Project (HGP). HGP sendiri merupakan salah satu tahap lanjutan dari penerapan Bioteknologi (BT) bagi kemaslahatan manusia. Hal ini menandai pula era BT memasuki milenium ketiga ini.

10.24002/biota.v9i2.2902 article ID cc-by-nc-sa Journal of Biota 2019-11-06

Rumput laut (seaweed) adalah biota yang mungkin paling dikenal manusia sejak lampau (setelah ikan, tentunya). Manfaat rumput bagi juga sangat bervariasi, mulai dari sumber makanan hingga obat-obatan. Di dunia moderen sekarang ini, semakin berkat hasil-hasil penelitian ilmiah dilakukan terhadap ini.

10.24002/biota.v10i2.2850 article ID cc-by-nc-sa Journal of Biota 2019-11-05

Penelitian inventarisasi jenis Opisthobranchia telah dilakukan untuk menunjang ekowisata di daerah Taman Laut 17 Pulau Riung. laut ini terletak kecamatan Riung, Kabupaten Ngada, Flores, Nusa Tenggara Timur. Kawasan sebelah barat dibatasi oleh kabupaten Manggarai dan disebelah timur desa Nggolonio, utara dengan Flores selatan Desa Wangka, Alo Mamek, Ten Terong. Areanya meliputi lima buah yaitu Lengkosambi, Tadho, Benteng Tengah, Nangamese Sambinasi. Secara geografis antara 8o20’30” – 8o28’30”...

10.24002/biota.v10i1.2807 article ID cc-by-nc-sa Journal of Biota 2019-11-03

Objective: Essential oils extracted from the leaf of Euodia suaveolens have been reported. However, there is no published data on comprehensive report chemical constituents essential and methods utilized to extract plant. This research aimed reveal determine E. suaveolens.
 Methods: were by steam distillation analyzed utilizing Gas Chromatography-Mass Spectrometry (GC-MS) methods.
 Results: The GC-MS analysis revealed presence twenty-five different oils. main suaveolens’ leaves as...

10.22159/ijcpr.2020v12i4.39102 article EN International Journal of Current Pharmaceutical Research 2020-07-17

<p><em>White lead tree (<em>Leucaena leucocephala</em>) leaf extract includes antibacterial phytochemical compounds such as lupeol and flavonoids.<em> </em>The study aimed to determine the activity of white methanolic gel formulation against acne-causing bacteria <em>Propionibacterium acnes</em> <em>Staphylococcus epidermidis</em>, also physical quality preparation. The treatments included a White formulations. used completely...

10.21082/bullittro.v32n2.2021.75-85 article EN Buletin Penelitian Tanaman Rempah dan Obat 2022-08-04
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