Sustainable Agronomic Valorization of Unsulfured Molasses and Defatted Soybean Meal as an Optimized Formulation of Bio-Organic Fertilizer Enriched with High Cell Density P-Solubilizing Bacteria
| Autor: | Ali Tan Kee Zuan, Zulfazli M. Sobri, Muhamad Aidilfitri Mohamad Roslan, Puan Sheau Ling, Nor Aini Abdul Rahman, Izzalan Sohedein, Sim Choon Cheak |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Enterobacter
Central composite design Biofertilizer Soybean meal engineering.material plant growth promoting bacteria (PGPB) 03 medical and health sciences molasses Food science defatted soybean meal 030304 developmental biology 0303 health sciences 030306 microbiology Chemistry Agriculture Factorial experiment bioinoculant Phosphate solubilizing bacteria phosphate-solubilizing bacteria engineering biofertilizer Fermentation Fertilizer Agronomy and Crop Science Organic fertilizer |
| Zdroj: | Agronomy, Vol 11, Iss 996, p 996 (2021) Agronomy Volume 11 Issue 5 |
| ISSN: | 2073-4395 |
| Popis: | The application of plant beneficial bioinoculants such as phosphate solubilizing bacteria is a sustainable approach to expanding crop performance in agriculture. However, bioinoculant strains, particularly non-sporulating bacteria are often exposed to detrimental conditions throughout the production process and a long period of storage. This will negatively influence their viable cell density and eventually limit its efficacy in the field. To overcome such a scenario, an optimal formulation of biofertilizer should be prioritized. In this report, a sustainable valorization of molasses and defatted soybean meal as formulation of biofertilizer enriched with Enterobacter hormaechei 40a was proposed. Through the two-level factorial design and central composite design, the optimal formulation and fermentation conditions of bio-organic fertilizer to achieve maximum cell density of strain 40a were achieved. The highest cell density of strain 40a in the optimized molasses-DSM (OMD) medium was 12.56 log CFU/mL after 24 h which was 99.7% accuracy towards the predicted value. Interestingly, the solubilized P was increased by 62.4% in the OMD medium (174.07 µg/mL P) as compared to the standard P medium (65.38 µg/mL P). The shelf life of strain 40a after 180 days of storage was improved significantly around 10 log CFU/mL, when the OMD medium was amended with 0.1% sodium alginate. The strategy described here offers opportunities for agronomic formulation and large-scale bio-organic fertilizer production in the agriculture industry. |
| Databáze: | OpenAIRE |
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