- For plant-based (soya, almond, cashew, etc.) unsweetened yogurt, how does the yogurt bacteria grow and develop without sugar?
From online recipes for soya yogurt, one tablespoon of sugar per 1 liter of unsweetened soy milk is needed to promote bacterial fermentation. As these plant-based milk alternatives themselves do not contain sugar (lactose/ milk sugar), for which is the basic food for yogurt bacteria (eg. Lactobacillus delbrueckii subsp. bulgaricus/ Streptococcus salivarius subsp. thermophilus/ bifidobacteria).
- Also, there is not much sourness in some brands of soya yogurt (eg. Sojade etc). I wonder instead of sugar, what is added to cover the lactic acid that was produced by the yogurt bacteria during fermentation?
Would like to try making unsweetened soya yogurt at home. Appreciate any insights :)