Salaki, Meiske
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KARAKTERISTIK MORFOLOGI BAKTERI SIMBION SPONS MENYERUPAI Cribochalina sp DARI PERAIRAN MALALAYANG SULAWESI UTARA Poluan, Gledys Giacinta; Ginting, Elvy Like; Wullur, Stenly; warouw, Veibe; Losung, Fitje Vera; Salaki, Meiske
JURNAL PESISIR DAN LAUT TROPIS Vol 7, No 3 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.3.2019.24452

Abstract

Bacteria are found to be highly associated with various marine organisms, such as sponges. Sponges are known as the product of bioactive compounds. However, some of the compounds produced by sponges are obtained by the simbion-bacteria. Therefore this situation enables sponges simbion bacteria to play a major role in producing bioactive compounds that have been isolated from the sponge. The purpose of this study is to isolate and determine the characteristics of morphology of spongy simbion bacteria resembling Cribochalina sp, which was taken from Malalayang waters, North Sulawesi. Sponge simbion bacteria grow on NB media. Initially, a free-breeding colony was being done before bacteria were accrued in the NA media by 2% sponge broth (patent SID201906301) by means of Strike Plate methods. Based on to this study we had isolate five spongy simbion bacteria that resembling the Cribochalina sp. All five of these isolations have different characteristics of morphology in terms of color, shape, size, and elevation.      Keywords : bacteria, isolation, simbionts, sponges 
ISOLASI PIGMEN KAROTENOID DARI KEPITING Grapsus sp. (CAROTENOID PIGMENTS ISOLATION FROM CRABS Grapsus sp.) Diasasthisa, Dias; Paransa, Darus J; Mantiri, Desy MH; Rumengan, Antonius; Warouw, Veibe; Salaki, Meiske
JURNAL PESISIR DAN LAUT TROPIS Vol 7, No 2 (2019): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.7.2.2019.24216

Abstract

Carotenoids are pigments with a range of red, orange and yellow colors. In carotenoid and chlorophyll plants are located in chloroplasts which undergo photosynthesis as well as photosynthetic bacteria and fungi. Carotenoid compounds have antioxidant activity, anticancer, as precursors of vitamin A and can enhance immunity. Crustaceans like crabs Grapsus sp. have carotenoid pigments, visible red, orange, and yellow are scattered in the carapace. Pigments found in crustaceans as well as crabs of Grapsus sp. generally sourced from food eaten by the crab. To determine the process of carotenoid pigment metabolism, each crab organ of Grapsus sp. isolated using thin layer chromatography separation method and column chromatography to determine the type of pigment contained therein. Pigment types identified in the crabs of Grapsus sp. males using the TLC method: β-carotene, Astasen type, Cantasantin, Astasantin, and Adonirubin. Pigment types identified in the crabs of Grapsus sp. males using the CC method: β-carotene, Astasen, β-cryptosanthine, Zeaxantine, and Cryptosanthine. Keywords : Grapsus sp., Thin Layer Chromatography, Column Chromatography, Carotenoids Pigments.             Karotenoid merupakan pigmen dengan kisaran warna merah, orange dan kuning. Pada tumbuhan karotenoid dan klorofil terletak pada kloroplas yang mengalami proses fotosintesis seperti juga pada bakteri fotosintetik dan fungi. Senyawa karotenoid memiliki aktivitas antioksidan, antikanker, sebagai prekursor vitamin A dan dapat meningkatkan imunitas. Krustasea seperti kepiting Grapsus sp. mempunyai pigmen karotenoid, terlihat warna merah, jingga, dan kuning yang tersebar pada karapas. Pigmen yang terdapat pada krustasea demikian juga pada kepiting Grapsus sp. umumnya bersumber dari makanan yang dimakan oleh kepiting tersebut. Untuk mengetahui proses metabolisme pigmen karotenoid maka masing-masing organ kepiting Grapsus sp. diisolasi dengan menggunakan metode pemisahan kromatografi lapis tipis dan kromatografi kolom untuk mengetahui jenis pigmen yang terkandung didalamnya. Jenis pigmen yang teridentifikasi pada kepiting Grapsus sp. jantan dengan metode KLT yaitu : β- karoten, Tipe Astasen, Kantasantin, Astasantin, dan Adonirubin. Jenis pigmen yang teridentifikasi pada kepiting Grapsus sp. jantan dengan metode KK  yaitu : β- karoten, Astasen, β-kriptosantin, Zeaxantin, dan Kriptosantin. Kata Kunci : Grapsus sp., Kromatografi Lapis Tipis, Kromatografi Kolom, Pigmen Karotenoid.  
AKTIVITAS SENYAWA ANTIBAKTERI DAN ANTI-UV DARI Phyllidia varicosa (Cuvier, 1804) DAN BAKTERI SIMBIONNYA (NUDIBRANCHIA GASTROPODA) DARI PERAIRAN TANJUNG MANDOLANG, MINAHASA Ukar, Melania; Bara, Robert A; Rumengan, Inneke F M; Losung, Fitje; Salaki, Meiske; Warouw, Veibe
JURNAL PESISIR DAN LAUT TROPIS Vol 8, No 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.28767

Abstract

Phyllidia varicosa is an organism belongs to the order Nudibranchia, which is commonly known as a sea rabbit. This organism is able to synthesize secondary metabolites from food. The purpose of this study was to obtain P. varicosa extract and symbiotic bacterial extract from P. varicosa, then determine the antibacterial activity of P. varicosa extract and the symbionic bacteria extract against Escherichia coli DSM498, Bacillus megaterium DSM32T and anti-UV activity. P. varicose symbiotic bacterial were isolated and extracted. The results obtained 5 bacterial isolates. The results of antibacterial assay of isolates PhVa 1.1, PhVa 1.3, PhVa 2.1, PhVa 2.3 and PhVa 2.4 shown that these isolates have an antibacterial activity against E. coli DSM498 and B. megaterium DSM32T. Anti-UV assay results shown an absorption at UV-A with the highest value of 1.991 at λ 340 nm. Keywords: Nudibranchia, Phyllidia varicosa, Antibacterial, Anti-UV, Escherichia coli, Bacillus megaterium Abstrak Phyllidia varicosa merupakan organisme yang termasuk dalam ordo Nudibranchia, yang umumnya dikenal sebagai kelinci laut. Organisme ini mampu mensintesis metabolit sekunder dari bahan makanannya. Tujuan dari penelitian ini yaitu untuk mendapatkan ekstrak P. varicosa dan ekstrak bakteri simbion dari P. varicosa, kemudian mengamati aktivitas antibakteri dari ekstrak P. varicosa dan ekstrak bakteri simbionnya terhadap bakteri Escherichia coli DSM498 dan Bacillus megaterium DSM32T serta menguji aktivitas anti-UV. Bakteri yang bersimbion dengan P. varicosa diisolasi dan diekstraksi, lalu diuji bioaktivitas antibakteri dan diuji anti-UV terhadap ekstrak P. varicosa dan ekstrak bakteri simbionnya. Hasil akhir dari penelitian ini yaitu didapatkan 5 isolat bakteri. Hasil uji aktivitas antibakteri yaitu isolat PhVa 1.1, PhVa 1.3, PhVa 2.1, PhVa 2.3 dan PhVa 2.4 memiliki aktivitas antibakteri terhadap bakteri E. coli DSM498 dan B. megaterium DSM32T. Hasil uji anti-UV menunjukkan serapan pada UV-A dengan nilai tertinggi 1,991 pada λ 340 nm. Kata kunci: Nudibranchia, Phyllidia varicosa, Antibakteri, Anti-UV, Escherichia coli, Bacillus megaterium