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荔枝果醋液态发酵工艺优化(Optimization of the Liquid State Fermentation Technology of Litchi Vinegar)
荔枝 果醋 液态发酵 工艺优化
2010/1/28
研究了荔枝果醋加工中的液态酒精与醋酸发酵工艺,试验表明添加4g/L的多肽,可促进酒精发酵过程中菌种生长和风味成分(酯及氨基酸态氮)的生成。采用四因素二次通用旋转组合设计优化了酒精发酵工艺条件,当接种量0.15%(安琪酵母和菌株CICC 1312的体积比为2∶1)、还原糖质量浓度为18g/(100 mL)、发酵温度为30℃、pH值为4.5时,发酵体的酒精度达9.76%。通过L9(34)正交试验优化的...
A Chemometrical Approach for Vinegar Classification by Headspace Mass Spectrometry of Volatile Compounds
headspace-mass spectrometry (HS-MS) vinegar chemometrics
2009/5/31
The volatile fraction of ninety-eight different vinegars was analysed using a head-space analysis instrument assembled in our laboratory. This instrument is formed by an automatic sample introduction ...