Coagulation of the marrow in bones
A method of treating a meat-substance containing a bone structure. The bone marrow is coagulated with microwaves generated by a solid-state RF energy source. The microwave heating may be carried out prior to a heat treatment of the meat-substance and/or may be carried out after slaughtering and before the fresh slaughtered meat-substance is frozen.
1. A method of treating a meat-substance containing a bone structure comprising bone marrow in an apparatus, the method comprising: coagulating the bone marrow with microwaves generated by a plurality of solid-state RF energy sources, wherein the apparatus comprises a housing, a conveyor for conveying the meat-substance through the housing, the meat-substance is configured to be arranged on the conveyor in rows, the plurality of solid-state RF energy sources are arranged in rows on the apparatus, the rows of the plurality of solid-state RF sources are configured to be aligned with the rows of the meat-substance on the conveyor such that one or more of the rows of the meat-substance arranged on the conveyor pass under a respective one of the rows of the plurality of solid-state RF sources, wherein the apparatus comprises a cooling chamber comprising a cooling agent, the cooling chamber is located in between the housing and the conveyor, the cooling chamber surrounds the conveyor, wherein the method comprises measuring a temperature of one of more of the plurality of solid-state RF energy sources, and then based on the measuring step, the method comprises controlling a fluid flow of the cooling agent and/or a temperature of the cooling agent to cool the plurality of solid-state RF energy sources.
2. The method according to claim 1 , wherein the coagulating is carried out prior to a subsequent heat treatment of the meat-substance.
3. The method according to claim 2 , wherein the coagulating is carried out after slaughtering and before a step of freezing the meat-substance.
4. The method according to claim 1 , wherein the meat-substance is thawed and then subjected to a subsequent heat treatment.
5. The method according to claim 4 , wherein the bone marrow is heated during a thawing step.
6. The method according to claim 4 , wherein the subsequent heat treatment step is carried out in an oven or a fryer or prior to a step of freezing the meat-substance.
7. The method according to claim 1 , wherein a power level, frequency, wavelength, phase versus time, amplitude, magnitude of radiated power and/or direction of the plurality of solid-state RF-energy sources is set such that radiation penetrates the meat-substance and the bone structure.
8. The method according to claim 1 , wherein a temperature of the bone structure and/or the bone marrow is measured during the coagulating step.
9. The method according to claim 8 , wherein a signal of a temperature measurement is utilized to control the plurality of solid-state RF-energy sources.
10. The method according to claim 1 , wherein the meat of meat-substance is at least partially frozen without freezing the bone structure and simultaneously and/or afterwards the bone marrow is coagulated with the microwaves generated by the plurality of solid-state RF energy sources.
11. The method according to claim 10 , wherein, the meat of the meat-substance is heated to 60° C.-100° C.
12. The method according to claim 10 , wherein the meat-substance is frozen to −10° C. or less.
13. The method according to claim 1 , wherein the method comprises controlling the plurality of solid-state RF energy sources with a control system by comparing transmitted energy with reflected energy and then based on the comparing step, the method comprises a step of adjusting new energy transmitted by the plurality of solid-state RF energy sources.
14. The method according to claim 1 , wherein the method comprises measuring a temperature of the bone marrow with a temperature sensor.
15. The method according to claim 1 , wherein before the coagulating step, the method comprises freezing the meat-substance without freezing the bone structure and the bone marrow.
16. The method according to claim 15 , wherein the method comprises a step of measuring a temperature of the bone marrow with a temperature sensor.
17. The method according to claim 16 , wherein the meat of meat-substance is at least partially frozen without freezing the bone structure and simultaneously the bone marrow is coagulated with the microwaves generated by the plurality of solid-state RF energy sources.
18. The method according to claim 16 , wherein the meat-substance is treated with the microwaves generated by the plurality of solid-state RF energy sources until the bone marrow is entirely coagulated and after the bone marrow is entirely coagulated, the method comprises freezing the meat-structure.
19. The method according to claim 1 , wherein the cooling agent is water.
20. The method according to claim 1 , wherein the cooling agent is gas or air.