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All Journal Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Asian Journal of Aquatic Sciences
Harifa Syah Putra
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Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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YIELD TEST OF FRESHWATER MICROALGAE POWDER Chlorellasp. ON BASAL MEDIUM Harifa Syah Putra; Dian Iriani; Ira Sari
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT            Chlorella sp. is a type of green microalgae because it contains chlorophyll a and b and has high nutrition. The growth of these organisms uses various media, one of which is basal medium;meanwhile, there is still little information about the amount of freshwater Chlorella sp. powder produced in the cultivation of the basal medium. The purpose of this study was to determine the yield content of freshwater microalgae Chlorellasp.which was cultivated in basal medium. This research method is experimental and descriptive which consists of three stages, namely sterilization of tools, manufacture of basal media and harvesting of Chlorella sp. Parameters observed consisted of growth and total yield of Chlorella sp.powder. The results showed that the highest number of Chlorellasp. was found on the 12th day of cultivation (2.28 x 106 cells/mL) with the characteristics of the Chlorellasp. powder produced having a smooth texture and dark green color. The yield obtained was 18.36 g (wet weight) and 1.95 g (dry weight). Therefore, the powder of Chlorellasp. can be used for further use as a functional food source.Keywords: Chlorella sp., Basal media, Growth, Yield
MINERAL CONTENT PROFILE OF CARAPACE FLOUR, CHITIN, AND CHITOSAN SLIPPER LOBSTER (Thenus orientalis) Putra, Harifa Syah; Hasan, Bustari; Karnila, Rahman; Ghazali, Tengku Muhammad
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.192-199

Abstract

Slipper lobster live on the bottom of sandy and muddy waters at a depth of 10-200 m and are found throughout Indonesian waters. The carapace is the most significant part of its body, of which approximately 50% is a source of waste, but it can be utilized as functional food in the form of chitin and chitosan. One of the determinations of chitin and chitosan quality depends on the demineralization process. The potential of this shrimp has not been fully utilized due to the lack of information on mineral content after the demineralization process. This study aims to obtain information on flour, chitin, and chitosan mineral content. This research used a descriptive method. The parameters observed were yield, water, ash, and mineral content (K, Mg, Ca, Na, Fe, and P). The results showed that slipper lobster weighed about 80-240 g with a length of 15-25 cm with the yield and mineral content of flour, chitin and chitosan of slipper lobster carapace as follows: yield 29.04%, 41.02%, 33.42%, water 2.36%, 3.96%, 3.25%, ash 52.89%, 8.27%, 3.16%, potassium 55.73 mg/L, 9.09 mg/L, 4.55 mg/L, magnesium 37.23 mg/L, 5.59 mg/L, 5.95 mg/L, calcium 766.87 mg/L, 137.62 mg/L, 126.91 mg/L, sodium 146.62 mg/L, 17.82 mg/L, 10.73 mg/L, iron 12.82 mg/L, 1.89 mg/L, 1.72 mg/L, phosphorus 0.17 mg/L, 0.06 mg/L, 0.05 mg/L.
Co-Authors Bustari Hasan Dian Iriani Ghazali, Tengku Muhammad Ira Sari Karnila, Rahman Karnila