Faculty of Science Technology and Agriculture, Yala Rajabhat University, Yala, 95000, Thailand.
Center of Excellence in Innovative Biotechnology for Sustainable Utilization of Bioresources, Program of Biotechnology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
Braz J Microbiol. 2023 Mar;54(1):93-102. doi: 10.1007/s42770-022-00866-3. Epub 2022 Nov 9.
Eco-friendly natural pigment demand has ever-increasing popularity due to health and environmental concerns. In this context, the aim of this study was to evaluate the feasibility use of Saba banana peel as low-cost fermentable substrate for the production of pigments, xylanase and cellulase enzymes by Monascus purpureus. Among the strains tested, M. purpureus TISTR 3385 produced pigments better and had higher enzyme activities. Under the optimal pigment-producing conditions at the initial moisture content of 40% and initial pH of 6.0, the pigments comprising yellow, orange, and red produced by the fungi were achieved in the range of 0.40-0.93 UA/g/day. The maximum xylanase and cellulase activities of 8.92 ± 0.46 U/g and 4.72 ± 0.04 U/g were also obtained, respectively. More importantly, solid-state fermentation of non-sterile peel could be achieved without sacrificing the production of the pigments and both enzymes. These indicated the potential use of the peel as fermentable feedstock for pigment production by the fungi and an environmental-friendly approach for sustainable waste management and industrial pigment and enzyme application.
由于健康和环境问题，对环保型天然色素的需求日益增加。在这种情况下，本研究旨在评估用 Saba 香蕉皮作为低成本可发酵底物来生产红曲菌色素、木聚糖酶和纤维素酶的可行性。在所测试的菌株中，红曲菌 TISTR 3385 产生的色素更好，且酶活性更高。在初始水分含量为 40%和初始 pH 值为 6.0 的最佳产色素条件下，真菌产生的黄色、橙色和红色色素的产率范围为 0.40-0.93 UA/g/天。木聚糖酶和纤维素酶的最大活性分别达到 8.92±0.46 U/g 和 4.72±0.04 U/g。更重要的是，非无菌果皮的固态发酵可以在不牺牲色素和两种酶产量的情况下实现。这表明果皮有可能作为真菌生产色素的可发酵饲料，以及一种环保的可持续废物管理和工业色素及酶应用方法。
