ISSUE FOCUS 40 Alternative Proteins Magazine April 2025 croBioGen’s scientists have successfully increased the lysine content in yeast from 2.6% to 8%. This remarkable three-fold improvement - verified by Australia’s National Measurement Institute - demonstrates the power of MicroBioGen’s proprietary technology platform. The breakthrough not only enhances the yeast’s ability to accumulate lysine but also opens the door to boosting levels of other essential amino acids. • This lysine-enriched SCP improves the amino acid profile of plant-based compound feeds, making them more nutritionally complete. • The innovation could increase the value of MicroBioGen’s SCP by an additional US$100–200 per tonne. Antioxidant-Enriched SCP: Shelf-Life Extension and Health Benefits MicroBioGen’s yeast, grown on industrial by-products, naturally accumulates high levels of antioxidants, including glutathione. • Antioxidants may aid in extending the shelf life of compound feed products. • Antioxidants support immune function, improve disease resilience in marine species, and reduce reliance on antibiotics for more sustainable aquaculture. By integrating functional enzymes, enhanced amino acids, and natural antioxidants, MicroBioGen’s next-generation SCP delivers superior nutritional value while significantly increasing economic returns. This approach transforms low-cost industrial byproducts into premium feed ingredients, positioning SCP as a cost-effective, sustainable, and scalable alternative to fish meal. DOUBLING THE VALUE OF SCP With over 20 years of innovation in yeast enhancement, MicroBioGen has successfully developed SCP as a viable replacement for unsustainable protein sources like fish meal. Key breakthroughs, summarised in Figure 3, include: • Utilization of low-cost industrial byproducts for sustainable production, • 50% higher protein content than wild yeast, with a superior amino acid profile, • High enzyme activity, improving meal digestibility and maximizing SCP’s nutritional value, • Antioxidant-enriched yeast, reducing antibiotic dependence and supporting overall health. These advancements double the value of SCP compared to standard protein sources, lowering costs while increasing functionality. This translates to stronger unit margins, greater market demand, and increased investment potential. SHAPING THE FUTURE OF SUSTAINABLE AQUAFEED: PREMIUM, AFFORDABLE SCP MicroBioGen’s yeast-based SCP marks a transformational shift towards sustainable, economically viable, and nutritionally complete aquafeeds. By creating solutions to convert industrial byproducts into high-quality protein, the company tackles environmental sustainability and food security challenges in the rapidly growing aquaculture sector. As the demand for sustainable protein sources rises, MicroBioGen’s yeast SCP technology offers a scalable, high-impact solution that benefits both the environment and the industry. Antioxidants Industrial waste / side streams Cost-effective substrates Lysine H2N NH2 OH O Phytase Phytate Inositol Figure 3. MicroBioGen yeast SCP is packed with bioavailable protein, functional enzymes, antioxidants, and other key health benefits. The yeast’s ability to thrive on industrial side streams makes it a sustainable, highperformance alternative to fish meal, offering both nutritional and environmental advantages
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