Dairy purification mixture

Patent metadata

Field	Value
Publication number	US-11659847-B2
Application number	US-202218048471-A
Country	US
Kind code	B2
Filing date	Oct 21, 2022
Priority date	Sep 9, 2019
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

A method of removing one or more antibiotics from a dairy product, the method involve passing the dairy product comprising an antibiotic in a first amount through a bulk comprising, relative to a total bulk weight, at least 75 wt. % of titanium oxide nanostructures, to provide the dairy product comprising the antibiotic in a second, lesser amount, wherein the nanostructures have lengths at least two-fold in excess of their width and height. Bulk materials useful in this or related methods or applications may have loosely tangled, noodle-like morphologies on sub-100 nm scale, and need not employ graphene and/or polymeric support networks in columns, generally having only titanium oxides without silicon or iron oxides.

First claim

The invention claimed is:

1. A dairy mixture for purification, comprising:
titanium oxide nanotubes having a formula H x Na 2-x Ti 2 O 5 .(H 2 O), wherein x≤2;
an antibiotic; and
a dairy product,
wherein the nanotubes have an average diameter in a range of from 5 to 200 nm.

2. The mixture of claim 1 , wherein the dairy product is milk and/or the antibiotic is a β-lactam antibiotic.

3. The mixture of claim 1 , wherein the first amount of the antibiotic is in a range of from 10 to 1200 ppm.

4. The mixture of claim 1 , wherein the average diameter of the titanium oxide nanotubes is no greater than 20 nm.

5. The mixture of claim 1 , wherein the titanium oxide nanotubes have
a BET surface area in a range of from 175 to 225 m 2 /g, and/or
an average pore size in a range of from 65 to 85 Å, and/or
an average particle size in a range of from 60 to 125 μm.

6. The mixture of claim 1 , wherein the titanium oxide nanotubes have an anatase crystal structure.

Assignees

• Univ Imam Abdulrahman Bin Faisal

Inventors

• Kochkar Hafedh
• Alomair Nuhad Abdullah
• Albilali Reem Khalid
• Aljameel Suhailah Saud

Classifications

• B01J20/0211

  Compounds of Ti, Zr, Hf · CPC title

• A23L5/273

  using adsorption or absorption agents, resins, synthetic polymers, or ion exchangers · CPC title

• B01J20/28004

  Sorbent size or size distribution, e.g. particle size · CPC title

• B01J20/041

  Oxides or hydroxides · CPC title

• B01J20/28007

  with size in the range 1-100 nanometers, e.g. nanosized particles, nanofibers, nanotubes, nanowires or the like (carbon nanostructures B01J20/205) · CPC title