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The disclosure relates to an enzymatic preparation method of inclusion complexes of tributyrin, and belongs to the technical field of oil microencapsulation. The disclosure combines enzymatic synthesis of cyclodextrin and inclusion of tributyrin with cyclodextrin, including enzymatic preparation of cyclodextrin with a CGT enzyme. Tributyrin is added in the preparation process; after reaction, Tween is added, and homogenization and spray drying are carried out. The effect of the finally obtained tributyrin powder is much better than that of single inclusion of tributyrin with cyclodextrin. The disclosure is simple in process, low in cost and convenient in operation; reaction processes are free of toxicity and pollution; there are no toxic reagent residues; the inclusion effect is obvious, and better utilization of a nutritional additive tributyrin in actual production is facilitated.

Titel:	Enzymatic Preparation Method of Inclusion Complexes of Tributyrin
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2021
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20210010044 Publication Date: January 14, 2021 Appl. No: 17/034234 Application Filed: September 28, 2020 Claim: 1. A method of enzymatic preparation of inclusion complexes of tributyrin, comprising: preparing starch milk or a maltodextrin solution as a raw material, wherein a mass concentration of the starch milk or maltodextrin solution is 15% to 30%; adding an enzyme into the starch milk or maltodextrin solution for liquefaction reaction and cyclization reaction; and after the cyclization reaction is completed, adding tributyrin and an emulsifier so that tributyrin is included. Claim: 2. The method according to claim 1, wherein starch in the starch milk is one or more of corn starch, waxy corn starch, potato starch, rice starch, cassava starch and wheat starch, and maltodextrin in the maltodextrin solution is maltodextrin from a starch source with a DE value of 5 to 25. Claim: 3. The method according to claim 1, further comprising: after the adding tributyrin and the emulsifier, mixing emulsification, shearing, homogenization and spray drying. Claim: 4. The method according to claim 1, wherein the enzyme is cyclodextrin glucosyltransferase. Claim: 5. The method according to claim 1, wherein a mass ratio of tributyrin to starch in the starch milk or maltodextrin in the maltodextrin solution is (0.30-0.75):1. Claim: 6. The method according to claim 1, wherein in the liquefaction reaction, an addition amount of cyclodextrin glucosyltransferase is 2-4 Unit/gram starch or maltodextrin wet substrate, a liquefaction temperature is 80-90° C., and the liquefaction reaction time is 30-60 minutes. Claim: 7. The method according to claim 1, wherein in the cyclization reaction, an addition amount of cyclodextrin glucosyltransferase is 2-4 Unit/gram starch or maltodextrin wet substrate, a cyclization temperature is 45° C., and the cyclization reaction time is 8-12 hours. Claim: 8. The method according to claim 1, wherein the emulsifier is any one or more of Tween, arabic gum and xanthan gum, and a mass ratio of the emulsifier to starch in the starch milk or maltodextrin in the maltodextrin solution is (0.3-0.5):1. Claim: 9. The method according to claim 3, wherein a shearing speed is 8000-20000 rpm, and the shearing time is 2-5 minutes; a homogenization pressure is 30-40 MPa, and a homogenization frequency is 2-3; and spray drying conditions are under: an air inlet temperature is 180-185° C., an air outlet temperature is 85-95° C., and a feeding flow rate is 20-22 mL/min. Claim: 10. Inclusion complexes prepared by the method according to claim 1, wherein a core material of the inclusion complexes is tributyrin, and a wall material is a mixture of cyclodextrin, dextrin and the emulsifier obtained after the enzyme acts on a substrate. Claim: 11. A substitute for antibiotic additives for feed comprising the inclusion complexes according to claim 10. Current International Class: 12; 12; 61; 61; 61; 23; 23; 23; 23

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Enzymatic Preparation Method of Inclusion Complexes of Tributyrin