求翻译：为降低烟草薄片中果胶含量，以黑曲霉h1为菌株，以烟梗为发酵培养基，采用固态发酵法制备烟草薄片基础物料，优化了固态发酵培养条件，并在三角瓶固态发酵实验的基础上进行放大实验。实验结果表明：培养基含水量为料水比1:1.2，1000 mL三角瓶中装料量为50 g，接种量为20%，发酵时间为4 d，在此优化条件下，烟梗中果胶含量可降低x%。是什么意思？

To reduce the pectin content in the tobacco sheet, Aspergillus niger h1 strains, tobacco stems, the fermentation medium, solid-state fermentation was prepared tobacco sheet base materials to optimize the solid-state fermentation conditions, and the basis of solid-state fermentation experiment in fla

In order to reduce tobacco slices fruit content to Aspergillus niger strain H1 is to smoke sticks to fermentation media, which uses solid state fermentation rule based material back tobacco flakes, optimize the solid state fermentation culture conditions, and the bottle in 3 solid state fermentation

In order to reduce in the tobacco thin slice the pectin content, take black tune mildew h1 as the strain, take the smoke stem as the fermentation medium, uses the solid state zymotechnics preparation tobacco thin slice foundation material, optimized the solid state fermentation raise condition, and

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