This study was conducted to evaluate the potential of pineapple peel (PP) and pineapple crown leaves (PCL) as the substrate for vanillic acid and vanillin production. About 202 ± 18 mg L-1 and 120 ± 11 mg L-1 of ferulic acid was produced from the PP and PCL respectively. By applied response surface methodology, the ferulic acid yield was increased to 1055 ± 160 mg L-1 by treating 19.3% of PP for 76 min, and 328 ± 23 mg L-1 by treating 9.9% of PCL for 36 min in aqueous sodium hydroxide solution at 120 °C. The results revealed that PP extract was better than PCL extract for vanillic acid and vanillin production. Furthermore, the experiment also proved that large volume feeding was more efficient than small volume feeding for high vanillic acid and vanillin yield. Through large volume feeding, about 7 ± 2 mg L-1 of vanillic acid and 5 ± 1 mg L-1 of vanillin was successfully produced from PP extract via Aspergillus niger fermentation.

中文翻译：

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黑曲霉I-1472将菠萝皮和菠萝冠叶中的阿魏酸生物转化为香草酸和香草醛。

进行了这项研究，以评估菠萝皮（PP）和菠萝冠叶（PCL）作为香草酸和香草醛生产基质的潜力。由PP和PCL分别产生约202±18mg L-1和120±11mg L-1的阿魏酸。通过应用响应表面方法，通过在钠水溶液中处理19.3％的PP 76分钟，将阿魏酸产量提高至1055±160 mg L-1，通过在钠水溶液中处理9.9％的PCL 36分钟将阿魏酸产量提高至328±23 mg L-1。 120°C的氢氧化物溶液。结果表明，PP提取物在香草酸和香草醛生产方面优于PCL提取物。此外，该实验还证明，对于高香草酸和香草醛产量，大体积进料比小体积进料更有效。通过大量进料