Recent research published in Bioresource Technology explores the use of sucrose-loaded biochar to enhance anaerobic fermentation of paper mulberry, a promising bioresource for sustainable agriculture. The study highlights how biochar, particularly when combined with sucrose, improves microbial community dynamics and lactic acid production, crucial for the fermentation process.

Paper mulberry is highly adaptable but faces challenges during ensiling due to low sugar content, limiting lactic acid production. The researchers found that biochar promotes the growth of beneficial lactic acid bacteria (LAB) such as Lactiplantibacillus, while its alkaline properties reduce acid inhibition. When used alone, biochar supported heterofermentation, resulting in higher acetic acid levels. However, when combined with sucrose, a shift to homofermentation occurred, boosting lactic acid yields by 15% and reducing ammoniacal nitrogen by 22.2%.

Moreover, the sucrose-biochar combination improved fermentation quality, increased dry matter degradation rates, and reduced methane emissions by over 24% in rumen tests, suggesting its potential for both environmental and agricultural benefits. The study concludes that sucrose-loaded biochar offers an effective strategy to optimize the fermentation of paper mulberry, enhancing lactic acid production and silage quality while minimizing methane emissions, making it a promising solution for sustainable agriculture.

These findings support the application of biochar and sucrose in practical agricultural production, optimizing the fermentation process and improving livestock feed efficiency.