Methods for identifying sulfur-treated food products
AssigneeHong Kong Baptist University
InventorsJun Xu, Weihao Zhang, Kam Chun Chan, Yui Man Chan, Hanyan Luo
Life of this patent
Estimating the term…
Abstract
A method of identifying a sulfur-treated food product, the method including: providing a sample including a food product; analyzing the sample using an analytical method to determine whether the sample includes tryptophan sulfonate; and identifying based on whether the sample includes tryptophan sulfonate that the food product is sulfur-treated, wherein the presence of tryptophan sulfonate indicates that the food product is sulfur-treated.
Claims20
A method of identifying a sulfur-treated food product, the method comprising:
- providing a sample comprising a food product;
- analyzing the sample using an analytical method to determine whether the sample comprises tryptophan sulfonate;
- and
- identifying based on whether the sample comprises tryptophan sulfonate that the food product is sulfur-treated, wherein the presence of tryptophan sulfonate indicates that the food product is sulfur-treated.
A method of identifying a sulfur-treated food product, the method comprising:
- providing a sample comprising a food product;
- analyzing the sample using an analytical method selected from the group consisting of high-performance liquid chromatography (HPLC-MS/MS) and ultra-performance liquid chromatography (UPLC-MS/MS) thereby generating mass spectroscopy data;
- determining whether the mass spectroscopy data comprises one or more first markers indicative of the presence of tryptophan sulfonate, wherein the one or more first markers comprise an observed mass to charge ratio (m/z) selected from the group consisting of 283.04±0.01, 267.02±0.01, and 222.02±0.01;
- and
- identifying based on whether the mass spectroscopy data comprises the one or more first markers indicative of the presence of tryptophan sulfonate that the food product is sulfur-treated, wherein the presence of one or more first markers indicative of the presence of tryptophan sulfonate indicates that the food product is sulfur-treated.
Dependencies are inferred from the claim text.