Abstract
Spirulina sp. is the most common cyanobacteria commodity used in the bioindustry for functional food, source of protein, bioactive compounds, and biopigment. Production of Spirulina sp. still facing several problems such as high cost of culture medium with the less effective result, especially in developing countries. The medium was modified with commercial chemicals and fertilizers locally available in Indonesia to reduce the production cost. This study aimed to assess the biological, technical, and financial feasibility of Spirulina sp. biomass production using a modified commercial medium. Based on the biological feasibility study, the modified commercial medium (ZK1 and ZK2) gives a similar result to the standard medium, equal for growth rate and protein content. However, the result contains lower fat, carbohydrates, and biopigment. The financial feasibility analysis suggested that the system is feasible starting from 1.2-1.5 kg biomass production in a month. The best result gained on the production capacity of 5 kg biomass using ZK2 medium, with NPV of IDR 183,208,962 (US$12,769), IRR of 73%, B/C ratio of 7.8, and payback period in 7 months. It can be concluded that modified commercial medium was biologically, technically, and financially feasible to be applied in industrial biomass production of Spirulina sp.
Highlights
Spirulina sp. is blue-green algae containing highly bioactive compounds introduced as the “best food for the future” at the World Food Conference since
Spirulina sp. culture obtained from the Brackish Water of Fisheries and Aquaculture Center (BBPBAP) Jepara, Indonesia
The used culture medium is differentiated into three formulations, i.e., the Zarrouk Medium as a standard medium for Spirulina sp. (ZM), Zarrouk Medium substituted with commercial chemicals and fertilizers (ZK1), and substituted medium with reduction of some commercial chemicals and fertilizers (ZK2)
Summary
Spirulina sp. is blue-green algae containing highly bioactive compounds introduced as the “best food for the future” at the World Food Conference since1974. Is blue-green algae containing highly bioactive compounds introduced as the “best food for the future” at the World Food Conference since. Could be used as a source of nutritional supplements with several advantages, e.g., high potential to be cultured even in a limited space, integrable with aquaculture production systems, and accountable in needs of protein and vitamin sources for food crisis (1). As an “interesting food for multiple reasons, contain rich iron and proteins, eligible to be administered to children without any risk”. Treated as a superfood, a highly beneficial healthy food, and market demand for Spirulina sp. The fastest growth will likely occur in the Asia-Pacific region, within any sectors such as the nutrition sector, the food and beverage industry, agriculture, and the cosmetics industry
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