Chinese liquor is one of the world's oldest distilled alcoholic beverages, and it is typically obtained with the use of Daqu fermentation starters. Daqu is a saccharifying and fermenting agent, having a significant impact on the flavour of the product.

Oct 1, 2024 · Daqu is a spontaneously fermented starter culture made from grains (mostly wheat) in an open environment that is indispensable in the fermentation of Chinese liquor (Baijiu) by providing enzymes, microorganisms, and flavor substances or their precursors (Xia et al., 2023; Xiao et al., 2021; Yang et al., 2021).

Oct 1, 2024 · We identified four key saccharifying enzymes in Daqu. Optimization of microbial proportions improved saccharifying activity. A proper saccharifying activity promoted alcoholic fermentation. Saccharifying activity of starter culture plays a key role on the simultaneous saccharification and fermentation of Chinese baijiu fermentation.

Jun 1, 2022 · Daqu functions as a starter culture to initiate the fermentation of Chinese liquor (termed Baijiu) by providing abundant enzymes such as glucoamylase, protease, and cellulase and a rich variety of microorganisms (Liu et al., 2018, Xiao et al., 2021, Yi et al., 2019).

May 11, 2023 · Daqu, an important starter in Baijiu brewing, is composed of carbohydrate-rich raw materials (such as barley, wheat, and peas) and is naturally fermented in solid state by inoculating native...

大曲 [1] 是用来酿酒的一种原料，又称块曲或砖曲，以 大麦 、 小麦 、 豌豆 等为原料，经过粉碎，加水混捏，压成曲醅，形似砖块，大小不等，让自然界各种微生物在上面生长而制成。 大曲在经过强烈 蒸煮 的白米中，移入 曲霉 的 分生孢子，然后保温，米粒上即茂盛地生长出菌丝，此即 酒曲。 在曲霉的 淀粉酶 和 糖化酶 的强力作用下使米中的淀粉被酶解成糖，因此，自古以来就把它和麦芽同时作为糖的原料，用来制造酒、甜酒和豆酱等。 用麦类代替米者称麦曲。 现代大致将 …

Oct 17, 2018 · Daqu is a spontaneous solid-state cereal fermentation used as saccharification and starter culture in Chinese vinegar and liquor production. The evolution of microbiota in this spontaneous fermentation is controlled by the temperature profile, which reaches temperatures from 50 to 65°C for several d …

Jan 1, 2011 · Chinese liquor is one of the world's oldest distilled alcoholic beverages, and it is typically obtained with the use of Daqufermentation starters. Daqu is a saccharifying and fermenting agent,...

Feb 19, 2025 · Daqu, the starter used in Baijiu making process, is produced by spontaneous solid-state fermentation and contains numerous microbes and enzymes, significantly influencing the yield and flavour profile of Baijiu.

Jan 17, 2025 · Microbial community functions were also predicted, highlighting enzymes involved in carbohydrate degradation, flavor formation, and ethanol fermentation. Finally, simulated baijiu fermentation was performed by adding daqu stored for different times, and the results showed that daqu stored for 3 to 4 months was appropriate for baijiu brewing.