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Petya Stefanova Boris Krastev Bogdan Goranov Anateya Georgieva Mariya Brazkova Denica Blazheva Galena Angelova

Abstract

This study is the first to investigate the growth kinetics of Inonotus hispidus GA4B, a newly isolated wood-decay mushroom from Bulgaria, under in vitro cultivation, as well as its ability to utilize plant-derived waste materials as complex growth media. Using logistic and reversed autocatalytic growth models, the effects of nine media were assessed, identifying the binary medium SDLSWB as the most effective for promoting fungal growth (µmax = 0.480 ± 0.019 d⁻¹), though further optimization is needed to improve substrate efficiency. Similar growth potential was observed with WSWB and HERFWB media. Based on the kinetic analysis, it can be concluded that the optimal cultivation temperature for I. hispidus on SDLSWB medium is 28℃. A fourth-order polynomial model of the pre-exponential factor in the Arrhenius equation enabled accurate predictions of µmax across a 19 – 31℃ range, with strong agreement between theoretical and experimental results. Additionally, pH 5.5 was identified as optimal, and a pH-dependent kinetic model successfully predicted µmax values between pH 5.0 and 7.5. Overall, the findings provide a solid foundation for future research aimed at optimizing the use of various plant-derived waste materials as culture media for the growth of basidiomycete fungi.

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References

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How to Cite
STEFANOVA, Petya et al. Newly isolated wood-decay mushroom Inonotus hispidus – modeling of growth kinetics and utilization of plant-derived waste materials. Food Science and Applied Biotechnology, [S.l.], v. 9, n. 1, p. 160-172, mar. 2026. ISSN 2603-3380. Available at: <https://www.ijfsab.com/index.php/fsab/article/view/546>. Date accessed: 19 may 2026. doi: https://doi.org/10.30721/fsab2026.v9.i1.546.