• 中文核心期刊
  • CSCD来源期刊
  • 中国科技核心期刊
  • CA、CABI、ZR收录期刊

酶法脱苦对琯溪蜜柚汁主要苦味物质及营养风味的影响

Effects of Enzyme Application on De-bittering and Nutrient Retentionfor Guanxi Pomelo Juice

  • 摘要: 通过不同的柚苷酶添加量、温度、pH值、时间等单因素及正交试验对平和琯溪蜜柚汁酶法脱苦工艺进行优化,探讨不同脱苦条件对蜜柚汁主要苦味物质柚皮苷和柠檬苦素的去除率及营养风味物质维生素C损失率的影响。结果表明,平和琯溪蜜柚汁的最佳酶法脱苦工艺条件为:在琯溪蜜柚原汁pH状态下,添加0.8 g·L-1柚苷酶,置于45℃中水浴1 h。在此条件下,蜜柚汁的柚皮苷去除率达90.25%、柠檬苦素去除率达87.09%、维生素C损失率为11.33%,能实现良好的风味特征。

     

    Abstract: To effectively remove the bitter taste (e.g., from substances such as naringin and limonin) while retaining nutrients (e.g., vitamin C) in Guanxi pomelo juice, an enzymatic process was investigated. The enzymeaddition, reaction temperature, treatment time, and juicepH of the process were optimized by a single factor and orthogonal array design experiment. The results indicated that by using 0.8 g·L-1 of naringinase in thepomelo juice at itsnatural pH and 45℃ for 1 h, the removal ratesup to 90.25% on naringin and 87.09% on limonin could be achieved, while the loss on vitamin Cminimized to 11.33%.

     

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