Fermented walnut milk and preparation method thereof

The invention relates to the technical field of walnut milk processing, in particular to fermented walnut milk and a preparation method thereof. The fermented walnut milk provided by the invention comprises the following raw materials in parts by weight: 5-10 parts of walnut kernels; 0.6 to 0.9 part of a stabilizing agent; 6-9 parts of a fermentation carbon source; 0.01 to 0.02 part of a composite strain; 0.03 to 0.08 part of glutamine transaminase; the stabilizer is composed of diacetyl tartaric acid ester of mono (di) glycerides, sodium tripolyphosphate, propylene glycol alginate and gellan gum, and the mass ratio of the diacetyl tartaric acid ester of mono (di) glycerides to the sodium tripolyphosphate to the propylene glycol alginate to the gellan gum is (1-3): (1-3): (23-26): 1. According to the fermented walnut milk provided by the invention, the stabilizer with specific components is added in the fermentation process, the components interact to ensure that the product is uniform, stable, free of layeri