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首页> 外文期刊>Food Chemistry >Studies on submerged fermentation of Pleurotus tuber-regium (Fr.) Singer. Part 2: effect of carbon-to-nitrogen ratio of the culture medium on the content and composition of the mycelial dietary fibre
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Studies on submerged fermentation of Pleurotus tuber-regium (Fr.) Singer. Part 2: effect of carbon-to-nitrogen ratio of the culture medium on the content and composition of the mycelial dietary fibre

机译：杏鲍菇的深层发酵研究。第2部分：培养基中碳氮比对菌丝膳食纤维含量和组成的影响

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摘要

The effects of different carbonitrogen (C/N) ratios in liquid media with equal amounts of total organic matter used for submerged fermentation, on the yield of biomass, total dietary fibre (TDF) content and monosaccharide composition of the mycelium of Pleurotus tuber-regium were studied. The mycelial growth was best at a C/N ratio ranging from 18:1 to 36:1 with an optimum value at 24:1. On increasing the C/N ratio of the medium, both the amount of TDF and chitin content in the mycelium of P. Tuber-regium decreased while glucan content increased. These results indicate that the proportions of the nitrogen and carbon source in a fermentation medium affect the biosynthesis of cell wall non-starch polysaccharide in mushroom mycelium. The potential use of the mycelium of P. Tuber-regium produced by submerged fermentation, as a high fibre food ingredient, is discussed.
机译：液体培养基中不同碳/氮（C / N）比以及用于深层发酵的等量总有机物对白灵菇菌丝体的生物量，总膳食纤维（TDF）含量和单糖组成的影响-regium进行了研究。 C / N比为18：1至36：1时，菌丝体生长最佳，最佳值为24：1。随着培养基的C / N比的增加，块茎区菌丝体中TDF含量和几丁质含量均下降，而葡聚糖含量则增加。这些结果表明，发酵培养基中氮和碳源的比例影响蘑菇菌丝体中细胞壁非淀粉多糖的生物合成。讨论了通过深层发酵生产的块茎疫霉菌丝体作为高纤维食品成分的潜在用途。

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