Deddy Wahyudi
Prodi Desain Produk FSRD, ITB

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DIVERSITAS, DISTRIBUSI DAN KELIMPAHAN GLASS EEL DI MUARA SUNGAI PALU Wahyudi, Deddy
JSTT Vol 5, No 2 (2016)
Publisher : JSTT

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Abstract

Eel (Anguilla sp.) Including one of the important fish rnelakukan displacement (migration) from the sea to freshwater environments (migration anadromous) for himself and further maturation kernbali to sea (migration katadromous), to perform spawning. The second migration is the whole life cycle of eels. Almost all of the estuary in Indonesia which can deep sea found Elver eels. This study aims to determine the diversity, distribution, abundance and size structure of glass eel in Palu River estuary. This research was conducted for six months ie in September 2014 to February 2015. The sampling locations estuary of Palu River. Sampling was done every month dark during the study, further samples are identified by Anodorsal vertebrae (ADV) and Caudal spot (CS) or Tail Spot (TS). The results showed that the diversity index of glass eel are migratory in the mouth of Palu River has a level of diversity of small and stability of the community is low, for an index of uniformity showed that the distribution of individuals among species uneven or there are certain types of dominant while the dominance index showed that there is one species dominate while doing migration of Palu River that is Anguilla marmorata. The distribution of glass eel on a monthly basis show a uniform pattern of spread. Eel abundance of glass eels are affected by the tides that occur in the mouth of Palu River. Glass eels are doing ruaya anadromous (migrating) to the mouth of Palu River month period September 2014 to February 2015 consists of three species, namely Anguilla marmorata, Anguilla sp. and Anguilla bicolor pacifica.
BIOAKTIVITAS ANTIBAKTERI DARI EKSTRAK DAUN MANGROVE Avicennia sp. Alhaddad, Zakinah A; Tanod, Wendy Alexander; Wahyudi, Deddy
Jurnal Kelautan Vol 12, No 1 (2019)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v12i1.4752

Abstract

Mangrove Avicennia sp. merupakan spesies mangrove yang penting, karena telah digunakan sebagai obat tradisional. Tujuan penelitian ini, yaitu mendapatkan fraksi ekstrak daun mangrove Avicennia sp. yang memiliki bioaktivitas antibakteri terhadap S. aureus dan E. coli. Sampel daun mangrove dikoleksi dari pesisir pantai di Kelurahan Kabonga Besar Kabupaten Donggala Sulawesi Tengah. Metode Pengujian antibakteri menggunakan difusi sumur agar. Hasil penelitian menunjukkan kehadiran senyawa steroid, triterpenoid, flavonoid, alkaloid dan polifenol. Aktivitas antibakteri ditunjukkan fraksi etil asetat (S. aureus 16.97 ± 1.15 mm dan E. coli 14.40 ± 0.46 mm) dan etanol (S. aureus 12.20 ± 2.12 mm dan E. coli 8.13 ± 0.42 mm) pada 1,000 mg/mL. Penelitian ini telah mengeksplorasi kemampuan antibakteri ekstrak daun Avicennia sp. dalam pelarut n-heksan, etil asetat dan etanol. Analisis fitokimia dari berbagai ekstrak pelarut menunjukkan bahwa flavonoid dan tanin adalah umum dalam semua ekstrak tanaman dengan sifat antibakteri. Ekstrak daun Avicennia sp. dapat digunakan untuk menemukan produk alami bioaktif baru dan dapat digunakan sebagai sumber potensial yang dapat mengendalikan bakteri patogen.Kata Kunci : Escherichia coli, Staphylococcus aureus, Bioaktif, Donggala, Sulawesi Tengah ABSTRACTMangrove Avicennia sp. an important mangrove species, because it used as traditional medicine. This research aimed to obtain a fraction of mangrove leaves extract Avicennia sp. which has antibacterial bioactivity against S. aureus and E. coli. Mangrove leaves collected from the coast in the village of Kabonga Besar, Donggala District, Central Sulawesi. Antibacterial activity assayed using the agar diffusion well method. The results showed the presence of steroid, triterpenoids, flavonoids, alkaloids and polyphenols compounds. Antibacterial activity showed by ethyl acetate fraction (S. aureus 16.97 ± 1.15 mm and E. coli 14.40 ± 0.46 mm) and ethanol (S. aureus 12.20 ± 2.12 mm and E. coli 8.13 ± 0.42 mm) at 1,000 mg/mL. This study has explored the antibacterial ability of Avicennia sp. leaves extract in n-hexane, ethyl acetate, and ethanol. Phytochemical analysis of various solvent extracts shows that flavonoids and tannins are common in all plant extracts with antibacterial properties. Avicennia sp. leaves extract can be used to find new bioactive natural products and can use as a potential source that can control pathogenic bacteria.Key Words : Escherichia coli, Staphylococcus aureus, Bioactive, Donggala, Central Sulawesi 
RENDEMEN DAN pH GELATIN KULIT IKAN NILA (Oreochromis niloticus) YANG DIRENDAM PADA BERBAGAI KOSENTRASI HCl Renol, Renol; Finarti, Finarti; Wahyudi, Deddy; Akbar, Mohamad; Ula, Radhiyatul
Jurnal Pengolahan Pangan Vol 3 No 1 (2018)
Publisher : Fakultas Pertanian Universitas Alkhairaat Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31970/pangan.v3i1.9

Abstract

Gelatin is derivative protein of collagen fiber which is found in the skin, bone, and cartilage. The composition of amino acids is almost similar to collagen, where glycine as the main amino acid and as 2/3 of all the amino acids that make it up, where 1/3 of the amino acids contained by proline and proline hydroxine. This research aims at knowing the physical charateristic of rendement and pH by using the skin of tilapia (Oreochromis niloticus) in concentration of HCL as immersion solution. The benefits of this research are expected to be the information sources of gelatin making in production scale, especially the gelatin production from the skin of tilapia (Oreochromis niloticus). The information are expected to support the development of information science and technology (IPTEK). Gelatin of tilapia skin (Oreochromis niloticus) used Completely Randomized Design (RAL) with 4 treatments. The treatments were HCl immersion to Tilapia’s skin (Oreochromis nilaticus) with N1 (4%), N2 (5%), N3 (6%) and N4 (7%) in 4 times repetitions
Species composition of glass eels (Anguilla spp.) recruiting to the Palu River, Central Sulawesi [Komposisi spesies glass eels (Anguilla spp.) yang beruaya di muara Sungai Palu, Sulawesi Tengah] Serdiati, Novalina; Ndobe, Samliok; Moore, Abigail; Wahyudi, Deddy
Jurnal Iktiologi Indonesia Vol 13, No 2 (2013): Desember 2013
Publisher : Masyarakat Iktiologi Indonesia (MII )

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v13i2.98

Abstract

Demand for tropical eel seed has been increased and many tropical eel populations are under pressure. To conserve eel biodiversity and manage eel populations sustainably, it is necessary to identify eel species and their recruitment patterns at regional and watershed scales. The research objective was to determine the species composition and temporal recruitment patterns of glass eels recruiting to Palu River in Central Sulawesi. Glass eels sampling were conducted in January-April 2009, May-November 2010 and April-December 2011. Identification under anaesthetic (15-17.5 ppm clove oil solution) was based mainly on the number of ano-dorsal vertebrae (ADV). Species composition was dominated by two commercially species, Anguilla marmorata and A. bicolor pacifica with substantial variation and no clear temporal patterns. Specimens of other species that important from conservation and biodiversity aspects were present at each month but cannot be accurately identified using the ADV method. DNA analysis method is required to identify these specimens. AbstrakPermintaan benih ikan sidat tropis meningkat dan banyak populasi sidat tropis telah mengalami tekanan. Untuk meles-tarikan keanekaragaman hayati ikan sidat dan mengelola populasi sidat secara berkelanjutan, perlu identifikasi spesies maupun pola rekrutmennya pada skala regional maupun daerah aliran sungai. Tujuan penelitian adalah menentukan komposisi jenis dan pola rekrutmen glass eels secara temporal di Sungai Palu, Sulawesi Tengah. Sampling dilakukan pada bulan Januari-April 2009, Mei-November 2010, dan April-Desember 2011. Identifikasi contoh ikan dalam kea-daan pingsan (menggunakan larutan minyak cengkeh 15-17.5 ppm) terutama didasarkan pada jumlah anodorsal vertebrae (ADV). Komposisi jenis didominasi oleh dua spesies bernilai ekonomis, yaitu Anguilla marmorata dan Anguilla bicolor pacifica, namun sangat bervariasi tanpa pola musiman atau tahunan yang jelas. Setiap bulan terdapat beberapa spesimen dari spesies lain, yang penting dari aspek konservasi dan biodiversitas, namun tidak dapat diidentifikasi secara pasti dengan metode ADV. Untuk mengidentifikasi spesimen tersebut dibutuhkan metode analisa genetik (DNA).
Iptek bagi Masyarakat Kelurahan Lere dalam Pengembangan Usaha Berbahan Baku Lamale (Penaeus sp.) Tanod, Wendy Alexander; Aristawati, Anita Treisya; Wahyudi, Deddy; Adel, Yeldi S
Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 5, No 1 (2019): Agrokreatif Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/agrokreatif.5.1.11-18

Abstract