Article Per Year (5 Year)
p-Index From 2019 - 2024
0.444
P-Index
This Author published in this journals
All Journal Jurnal Pengolahan Hasil Perikanan Indonesia Jurnal Kemaritiman: Indonesian Journal of Maritime Jurnal Pengabdian Masyarakat PGSD
Himawan Prasetiyo
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Social Sciences Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Growth and Extracelluler Polysaccaride Production of Porphyridium cruentum In Various Photoperiod Himawan Prasetyo; Iriani Setyaningsih; Dewi Ratih Agungpriyono
Jurnal Pengolahan Hasil Perikanan Indonesia Vol 18 No 2 (2015): Jurnal Pengolahan Hasil Perikanan Indonesia
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (777.701 KB) | DOI: 10.17844/jphpi.v18i2.12882

Abstract

Porphyridium cruentum is a kind of red microalgae (Rhodophyta) that can grow and producepolysaccharides. Polysaccharides are produced on the cell, then released and accumulated byextracellular into medias. This study aimed to determine the optimum growth and productionof extracellular polysaccharides (EPs) from P. cruentum in various photoperiods. The cultivationwas done with the photoperiods at 24:0, 18:6, 12:12 and 06:18 h (light:dark) during 40 days usingmodified medium F/2. The growth is determined by measuring optical density (OD) and driedbiomasses, the productions of EPs are determined by dried weight polysaccharides as a resultof precipitation. The results showed that OD at photoperiod 24:0 has the highest value 0.876 ±0.0645 unit of absorbance, biomass concentrations are highest in the photoperiod 24:0 and 12:12respectively 716.12 ± 123 mg-l and 696.5 ± 74.5 mg-l, the highest production of EPs on thephotoperiod 12:12 is 1.310 ± 130.26 mg-l. 12:12 hours (light: dark) photoperiod is optimally usedin P. cruentum cultivations with high biomass and extracellular polysaccharide results.
MIKROENKAPSULASI EKSTRAK KASAR MAGGOT SEBAGAI PAKAN SUBSTITUSI PADA PENYAPIHAN PAKAN LARVA IKAN NILA (Oreochromis niloticus) Himawan Prasetiyo; Sri Marnani; Purnama Sukardi
Jurnal Kemaritiman: Indonesian Journal of Maritime Vol 1, No 2 (2020): Desember 2020
Publisher : Universitas Pendidikan Indonesia (UPI) Kamous Serang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penyapihan pakan mikroenkapsulasi ekstrak kasar maggot pada umur larva nila (Oreochromis niloticus) yang berbeda serta menentukan waktu penyapihan yang tepat. Analisis yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 4 perlakuan (kontrol atau tanpa penyapihan, penyapihan pada umur 9, 14 dan 19 hari) dan 4 ulangan. Variabel yang diamati yaitu, pertumbuhan mutlak (panjang dan berat), laju pertumbuhan spesifik (SGR) dan sintasan (SR). Hasil penelitian menunjukan pertumbuhan mutlak panjang berkisar 7.15 - 8.65 mm, pertumbuhan mutlak berat berkisar 0.046 - 0.084 g, SGR berkisar 5.633 - 7.352 % dan SR berkisar 64 - 76 %. Waktu penyapihan pakan berpengaruh terhadap pertumbuhan dan sintasan larva ikan nila (p0,05). Waktu penyapihan pakan terbaik terdapat pada usia larva 9 hari.
Pendidikan Lingkungan untuk Siswa Sekolah Dasar di Pesisir Kecamatan Kasemen, Kota Serang, Banten Deri Hendriawan; Daniel Julianto Tarigan; Agung Setyo Sasongko; Himawan Prasetiyo; Deri Hendriawan; Muhammad Nurshalim; Aang Fuad Hasan; Narpati Zayni Khalis
Jurnal Pengabdian Masyarakat PGSD Vol 1, No 1 (2021): Jurnal Pengabdian Masyarakat PGSD
Publisher : Universitas Pendidikan Indonesia Kampus Serang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (200.76 KB) | DOI: 10.17509/jpm.v1i1.30212

Abstract

The purpose of this community service is to provide an understanding about the coastal environment to students of State Elementary School of Kebon, Kasemen District, Serang City. The method used in this community service is by providing teaching and socialization about protecting the environment in coastal areas. This community service is intended due to students of State Elementary School of Kebon live in direct contact with the coastal area. The teaching and socialization were conducted from September to November 2020. The teaching is conducted online through WhatsApp groups since the local and school policies did not allow face-to-face learning. Participants in this community service program were 50 students from grades 5 and 6. The conclusion is that through this program students of State Elementary School of Kebon become more aware and care about their coastal environment. This early environmental education is expected to reduce the behavior of disposing of trash inappropriately and increase students’ awareness of State Elementary School of Kebon to protect the coastal environment
Co-Authors Aang Fuad Hasan Agung Setyo Sasongko Deri Hendriawan Dewi Ratih Agungpriyono Muhammad Nurshalim Narpati Zayni Khalis Purnama Sukardi Sri Marnani Tarigan, Daniel Julianto