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PERTUMBUHAN DAN KADAR PROTEIN DARI KULTUR BEBERAPA JENIS MIKROALGA PADA SKALA LABORATORIUM DI BBPBAP JEPARA, JAWA TENGAH (22m571)

MURYANI, DEA INDAH (2022) PERTUMBUHAN DAN KADAR PROTEIN DARI KULTUR BEBERAPA JENIS MIKROALGA PADA SKALA LABORATORIUM DI BBPBAP JEPARA, JAWA TENGAH (22m571). Undergraduate thesis, Universitas Diponegoro.

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Abstract

ABSTRAK
(Dea Indah Muryani. 26010118130065. Pertumbuhan dan Kadar Protein dari
Kultur Beberapa Jenis Mikroalga pada Skala Laboratorium di BBPBAP Jepara,
Jawa Tengah. Pujiono Wahyu Purnomo dan Oktavianto Eko Jati).
Mikroalga yang sering dibudidayakan sebagai pakan alami adalah Spirulina
platensis, Chlorella vulgaris dan Chaetoceros sp. Pentingnya pakan alami
berkualitas, ditunjukkan oleh pertumbuhan dan performa nutrisi yang tinggi alga.
Tujuan penelitian ini adalah mengetahui perbedaan pertumbuhan dan kadar nutrisi
kultivan mikroalga Spirulina platensis, Chlorella vulgaris dan Chaetoceros sp.
Penelitian dilaksanakan pada bulan Desember 2021 di BBPBAP Jepara, Jawa
Tengah. Metode yang digunakan adalah metode eksperimen, mempergunakan
perlakuan jenis mikroalga Spirulina platensis, Chlorella vulgaris dan Chaetoceros
sp. dengan 3 ulangan menggunakan Rancangan Acak Lengkap (RAL). Asupan
nutrien dilakukan dengan memberikan Pupuk Walne dengan kadar 5 mg/l. Hasil
penelitian menunjukkan rata-rata konsumsi nitrat dan fosfat harian Spirulina
platensis, Chlorella vulgaris dan Chaetoceros sp. adalah 0,116; 0,101; 0,096 mg/l
dan fosfat sebesar 0,093; 0,114; 0,103 mg/l. Rata-rata angka kadar protein pada
ketiga mikroalga ini yaitu 31,553; 30,433; dan 36,537%. Hasil pengukuran suhu
air pada media Spirulina platensis sebesar 19,66-20,03 ºC, Chlorella vulgaris
sebesar 19 - 21 ºC dan Chaetoceros sp. mempunyai angka rata-rata yaitu; 21 - 22
ºC. Angka rata-rata pH sebesar 7,91 – 8,04 dan angka rata-rata salinitas berturutturut sebesar 17,37 mg/l, 30,39 mg/l dan 30,74 mg/l. Berdasarkan hasil
pengukuran terlihat bahwa pertumbuhan tertinggi kelimpahan sel mikroalga
sebesar 1.541.851 sel/ml yaitu pada spesies Chaetoceros sp. Spesies kedua yaitu
Chlorella vulgaris dengan kelimpahan sebesar 1.264.927 sel/ml dan diikuti
Spirulina platensis dengan angka kelimpahan 606.296 sel/ml.
Kata Kunci : Kualitas Air, Mikroalga, Nutrisi, Pakan Alami, Pertumbuhan

ABSTRACT
Microalgae are algae that are often cultivated as natural food, namely
Spirulina platensis, Chlorella vulgaris and Chaetoceros sp. The importance of
quality natural feed, demonstrated by the growth and high nutritional
performance of algae. The purpose of this study was to determine differences in
growth and nutritional levels of the microalgae Spirulina platensis, Chlorella
vulgaris and Chaetoceros sp. The research was conducted in December 2021 at
BBPBAP Jepara, Central Java. The method used is an experimental method,
using the type of microalgae Spirulina platensis, Chlorella vulgaris and
Chaetoceros sp. with 3 replications using Completely Randomized Design (CRD).
Nutrient intake is carried out by giving Walne Fertilizer at a rate of 5 mg/l. The
results showed that the average daily consumption of nitrate and phosphate by
Spirulina platensis, Chlorella vulgaris and Chaetoceros sp. is 0.116; 0.101; 0.096
mg/l and 0.093 phosphate; 0.114; 0.103mg/l. The average number of protein
levels in these three microalgae is 31.553; 30.433; and 36.537%. The temperature
measurement results for Spirulina platensis were 19.66-20.03 ºC, Chlorella
vulgaris were 19 - 21 ºC and Chaetoceros sp. has an average number, namely; 21
- 22 ºC. The average values for pH were 7.91 – 8.04 and the average values for
salinity were 17.37 mg/l, 30.39 mg/l and 30.74 mg/l respectively. Based on the
measurement results, it can be seen that the highest growth in microalgae cell
abundance was 1,541,851 cells/ml, namely in the species Chaetoceros sp. The
second species is Chlorella vulgaris with an abundance of 1,264,927 cells/ml,
followed by Spirulina platensis with an abundance of 606,296 cells/ml.
Keywords: Growth, Microalgae, Natural Feed, Nutrition, Water Quality

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Kualitas Air, Mikroalga, Nutrisi, Pakan Alami, Pertumbuhan, Growth, Microalgae, Natural Feed, Nutrition, Water Quality
Subjects: Fisheries And Marine Sciences
Divisions: Faculty of Fisheries and Marine Sciences > Department of Aquatic Resources
Depositing User: pancasila wati
Date Deposited: 29 May 2023 03:11
Last Modified: 29 May 2023 03:11
URI: https://eprints2.undip.ac.id/id/eprint/13152

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