2results about "Meat/fish preservation using acids" patented technology

A method for dynamically adjusting the control parameters of the extraction of products stored in a chamber: - an initial phase (100) comprising: * determining a weight-loss target profile (101) for the product, * determining the corresponding climatic extraction conditions (102); - an extraction phase (200) comprising: a / applying the climatic conditions (201); b / measuring quantitative data (202); c / establishing the actual weight-loss profile (203); d / establishing a predictive weight-loss profile (204) based on the quantitative data; e / automatically adjusting the climatic conditions (205) if a predefined deviation between the target profile and the actual profile or the predictive profile is observed, and applying these adjusted climatic conditions; f / implementing steps b / to e / until the end of the extraction cycle.

This invention provides a synergistic compound spray of lactic acid and acetic acid and its application in the preservation of chilled fresh lamb. The compound spray is composed of an aqueous solution of lactic acid and an aqueous solution of acetic acid. The mass fraction of lactic acid in the aqueous solution is 0.4-0.6%, and the mass fraction of acetic acid in the aqueous solution is 0.2-0.3%. The volume ratio of the two is 2:7 to 5:7. This invention also provides a corresponding method for preserving chilled fresh lamb: the compound spray is evenly sprayed onto the surface of the chilled lamb, which is then air-dried, packaged, and refrigerated. Experiments have confirmed that the combination of lactic acid and acetic acid in the compound spray agent of this invention exhibits a synergistic effect, with a combined antibacterial concentration index of 0.375. It can effectively inhibit the total bacterial count and coliform growth at low concentrations, delay the accumulation of volatile basic nitrogen, stabilize the pH, color, texture and sensory quality of meat products, avoid meat quality deterioration caused by high concentrations of single organic acids, and extend the shelf life of chilled fresh lamb at 4°C from 6 days to 10 days. It is safe and reliable and suitable for long-distance cold chain distribution and industrial applications.