37results about How to "Use less enzyme" patented technology

The invention relates to an aseptic long-acting enzymolysis method for plant protein, and belongs to the technical field of food processing. The method comprises the following steps: preparing ground vegetable protein raw materials or vegetable protein extracts into material liquid by water; making the pH of the material liquid become the optimum pH of protease, and carrying out sterilization; performing aseptic operation,preparingfood product protease into an enzyme solution with required concentration by water, filtering and performing sterilization, adding the filtered and sterilizedenzyme solution to the sterilizedmaterial liquid, thus obtaining a reaction solution; stirring the reaction solution to be fully mixed, and carrying out enzymolysis at the optimum temperature; heating and carrying out enzyme denaturalixation. The method can improve the hydrolysis degree of the vegetable protein, prolong the enzymolysis time, greatly lower theusing amount of enzymes and obviously lower risks of bacterial contamination;the hydrolysis degree of the vegetable protein is more than 18%; the problems of difficultenzymolysis of the vegetable protein, large using amount of the enzymes and easy corruption of enzymolysis liquid during the enzymolysis process are effectively solved; the use cost of the enzymesis lowered; a preservative and an enzyme protection agent are not used, so that components and taste of hydrolysates are not affected, and the application of the hydrolysates is more meaningful.

The invention discloses a preparation method of grease with a humanized structure. The preparation method comprises the following steps: carrying out intra-molecular rearrangement reaction to palm oil with palmitic acid content of higher than 50% under the action of catalyst to obtain Sn-2 locus triglyceride with palmitic acid content of higher than 50%; and carrying out ester exchange reaction to the Sn-2 locus triglyceride with palmitic acid content of higher than 50% with mixed fatty acid or non-glyceride under the action of 1,3 locus Specificity lipase, and then subjecting the reaction product to after treatment, so as to obtain the grease with humanized structure, wherein the mixed fatty acid is mixture of at least two selected from the group consisting of decanoic acid, lauric acid, myristic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid and linolenic acid. The vegetable oils are used as the raw material according to the method, so the safety is high; the preparation process is simple, the reaction time is short, the enzyme dosage is low, and the cost is low; and the prepared grease with the humanized structure is very similar to the beast milk fat in the composition of fatty acid and the structural distribution of triglyceride, so the grease can be added in infant formula or formula foods and used as breast milk fat substitute.