Apple pomace is the processing waste generated after apple juice manufacturing and represents up to 30% of the original fruit. This solid residue consists of a complex mixture of peel, core, seed, calyx, stem, and soft tissue. This residual material is a poor animal feed supplement because of its extremely low protein content and high amount of sugar. The application of agroindustrial by-products in bioprocesses offers a wide range of alternative substrates, thus helping solve pollution problems related to their disposal. Attempts have been made to use apple pomace to generate several value-added products, such as enzymes, single cell protein, aroma compounds, ethanol, organic acids, polysaccharides, and mushrooms. This article reviews recent developments regarding processes and products that employed apple pomace as a substrate for biotechnological applications.

中文翻译：

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苹果渣：用于生物技术应用的通用基材。

苹果渣是苹果汁制造后产生的加工废物，占原始水果的30％。该固体残留物由果皮，核，种子，花萼，茎和软组织的复杂混合物组成。由于其极低的蛋白质含量和大量的糖，这种残留的材料是不良的动物饲料补充剂。农用副产物在生物过程中的应用提供了广泛的替代底物，从而有助于解决与其处置有关的污染问题。已经尝试使用苹果渣来产生几种增值产品，例如酶，单细胞蛋白，香气化合物，乙醇，有机酸，多糖和蘑菇。