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Prevention of defective ageing of white wines by adding glutathione enriched yeast to must at the start, during or after alcoholic fermentation
Prevention of defective ageing of white wines by adding glutathione enriched yeast to must at the start, during or after alcoholic fermentation
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机译:在酒精发酵开始时,发酵过程中或发酵后,通过添加富含谷胱甘肽的酵母来防止白葡萄酒陈酿不良。
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摘要
The procedure consists of adding glutathione-enriched yeast to white wine must at the beginning, during or at the end of the alcoholic fermentation stage. The glutathione content of the yeast is over 0.5 per cent and preferably 1.5 per cent by weight of the dry material, and is added to the wine must at a rate of 0.1 - 1.0 g/l, and preferably 0.5 g/l, giving at least 5 mg and preferably about 9 mg of glutathione per litre of must. The glutathione-enriched yeast can be in the form of active or inactivated dry yeast, and can be used as part of the yeast inoculated in the must to start the alcoholic fermentation.
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