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Journal : Jurnal Perikanan

OPTIMIZATION OF HARVEST TIME FOR BIOMASS AND PHYCOBILIPROTEIN PRODUCTION OF Spirulina sp. CULTIVATED IN GANYONG (Canna edulis) SHOOT WASTE–BASED LIQUID ORGANIC FERTILIZER Wijihastuti, Risa Swandari; Noriko, Nita; Saffana, Nadhira; Lutfiah, Akifah; Maryanto, Botista Agung
Jurnal Perikanan Unram Vol 16 No 1 (2026): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v16i1.2039

Abstract

Spirulina sp. is a microalga with high economic value and strong potential as a source of protein and bioactive pigments for functional food, cosmetic and pharmaceutical applications. This study aimed to evaluate the growth performance, protein and pigment contents, and to determine the optimal harvest time of Spirulina sp. cultured using liquid organic fertilizer (LOF) produced from fermented ganyong shoot waste (Canna edulis). The culture was conducted for 16 days using LOF media at concentrations of 14 and 18 ml/L. The observed parameters included dry biomass weight, specific growth rate, biomass productivity, protein content, chlorophyll-a and phycobiliprotein pigments throughout the cultivation period. The results showed that Spirulina sp. biomass increased by approximately fivefold compared to the initial biomass in both treatments. Specific growth rate, biomass productivity, and protein content did not differ significantly between the two LOF concentrations (p > 0.05), with protein content ranging from 42% to 55% of dry biomass weight. Chlorophyll-a and phycobiliprotein contents varied according to the growth phase of the culture. The highest phycobiliprotein content was obtained in cultures grown with 14 mL/L LOF and harvested on day 8 of cultivation. These findings indicate that liquid organic fertilizer derived from ganyong shoot waste has strong potential as a sustainable alternative nutrient source for biomass and pigment production of Spirulina sp., with the exponential growth phase representing the optimal harvest time.
Co-Authors Abdullah Hakam Syah Adienda Yoesmah Zhafirah Adita Surya Doeana Agus Masduki Agustono, Rachmad Aidha Zulaika Aishah Feroza Akifah Lutfiah Alfiah, Elma Alma Mandjusri Amelia Latifa Analekta Tiara Perdana Andri Hadiansyah Ang, Benson Angelia Yulita Anggraini, Bunga Anita Mirasaraswati Arief Lelono Arum Arief Pambudi Armelia, Adela Arniaty, Andi Astria Prastika Dewi Bahrul Ulum Basma Basma Budi Aribowo Bunga Anggraini Choirunnisa, Nadiyah Isna Clarinda Puspitajati Crisnia Crisnia Cyndi Marcelina Dewi Elfidasari Dhia Puti Andini Wibowo Dinda Zalfa Dody Haryadi Dwi Astharini Dwi Atmi Narwati Ekaristi Pratiwi Ekowati Chasanah Elya Novani Endah Permata Sari Fachrudin, Muhammad Iqbal Raihan Fajar, Mahesa Putra Firli Azkia Rahmi Firman Alamsyah Gintung Patantis Grariani Nufadianti Habib Pangeran Hamisya Nurindriani Haris Atsal, Muhammad Amar Herlina, Sandra Hidayat Yorianta Sasaerila Imam Rosadi Indrini, Tri Ishmah, Fahradhita Sri Joko Prayitno JOKO PRAYITNO Kintoko, Wendy Almira Liana Mailani Lutfiah, Akifah Mandjusri, Alma Maryanto, Botista Agung Maulana, Aisyah Fajri Maulida, Aulia Muchammad Nasucha Mulyanto, Rizky Nuur Berlianni Nadiyah Isna Choirunnisa Ninditasya Wulandari Novani, Elya Nunung Nurhasanah Nurfadillah Nurfadillah Parameswari, Shahnaz Kintan Perdana, Analekta Tiara primasari, alina Pua Meno, Muhamad Zikrillah Purwanty Rara Azura Puspitasari, Riris Lindiawati Rahayu, Kun Mardiwati Rahmat Azhari Riris Lindiawati Puspitasari Risa Azhari Rismayanti Rismayanti Saffana, Nadhira Sahamony, Nur Fitriyani Sakinah Sakinah Sakinah Sakinah Sastradinata, Raydinal Adam Kusdinar Shafira, Rizka Shalsabila, Nayla Fatihah Siti Fauziah Canadianti Soesilo, Tri Edhi Budhi Stenny Putri Syaefudin - Syamsul Arifin Syarif Hidayat Syifanindira, Satri Vierly Taufiq W Priambodo Tharra Azzahra Riyana Vaerani, Nazwa Aiska Varomdhona, Siti Whisnuwardani, Indri Rosemaya Widhi Wijayanti Wijihastuti, Risa Swandari Wijihastuti, Risa Swandari Yunus Effendi Yusro Nuri Fawzya Yusuf, Andi Mukramin Zaharah, Puteri Zahid Azka Ramadhan Zalfa, Dinda