Soluble phosphorus rich compost by aerobic solid-state fermentation of chicken bone-containing food waste with Aspergillus niger

Ong, Lu ki and Angelio, Ricardo and Indrayani, Clarissa and Riadi, Lieke (2025) Soluble phosphorus rich compost by aerobic solid-state fermentation of chicken bone-containing food waste with Aspergillus niger. Jurnal Rekayasa Proses (J. Rek. Pros.), 19 (1). pp. 75-80. ISSN 1978-287X; E-ISSN 2549-1490

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Abstract

OBJECTIVES Food waste is a major issue in solid waste management due to its high volume and rapid accumulation. Without proper handling, it can cause foul odors, methane emissions, and health risks. Composting is a common solution but is often slow and limited to certain organic materials. Bones, a phosphorus-rich food waste, have potential for converting food waste into a valuable fertilizer. METHODS This study examines composting chicken bones and non-bone food waste through aerobic solid-state fermentation (SSF) using Aspergillus niger. The 28-day process at 28 °C was analyzed for pH and nutrient composition. RESULTS Results showed that Aspergillus niger effectively degraded organic matter and released phosphorus within a week, producing compost with high soluble P (2.47 mg P/g). Applying this compost to corn seeds for 7 days resulted in improved growth, including a 0.8 cm taller stalk, a 0.4 cm thicker stalk, two more leaves, and a more extensive fibrous root system compared to plants supplemented with naturally composted food waste. CONCLUSIONS Direct application of food waste led to stunted growth. These findings highlight Aspergillus nigermediated SSF as an efficient method to convert food waste into high-quality compost, supporting sustainable agriculture and waste management.

Item Type:	Article
Uncontrolled Keywords:	food waste; composting; Aspergillus niger; phos- phorus; corn germination
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Engineering > Department of Chemical Engineering
Depositing User:	Lieke Riadi 6116
Date Deposited:	05 May 2025 03:40
Last Modified:	05 May 2025 03:40
URI:	http://repository.ubaya.ac.id/id/eprint/48458

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