Tracing the geographical origin of tiger nut (Cyperus esculentus L) in China based on stable isotopes and mineral elements combined with multi-modal recognition
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Stable isotopes and elemental analysis can identify tiger nut origins in China. Machine learning models achieved 85% accuracy, highlighting key indicators for origin tracing.
Area Of Science
- Agricultural Science
- Analytical Chemistry
- Food Science
Background
- Tiger nut (Cyperus esculentus) is a globally significant crop.
- Geographical origin impacts crop quality and market value.
- Accurate origin discrimination is crucial for food authenticity and traceability.
Purpose Of The Study
- To develop a method for discriminating tiger nut based on geographical origin within China.
- To evaluate the effectiveness of stable isotope ratios and elemental composition analysis for origin tracing.
- To apply chemometrics and machine learning for robust origin classification.
Main Methods
- Analysis of stable isotope ratios (δ<sup>13</sup>C, δ<sup>15</sup>N, δ<sup>2</sup>H, and δ<sup>18</sup>O) in tiger nut samples.
- Determination of elemental compositions using analytical techniques.
- Application of chemometric methods and machine learning algorithms (SVM, MLP) for data analysis and classification.
Main Results
- Significant differences in δ<sup>15</sup>N, δ<sup>2</sup>H, δ<sup>18</sup>O isotope ratios and the content of 24 elements were observed among tiger nuts from different Chinese regions (p < 0.05).
- Support Vector Machine (SVM) and Multi-layer Perceptron (MLP) models achieved 85% predictive accuracy in classifying tiger nut origin.
- Key isotopic (δ<sup>15</sup>N, δ<sup>2</sup>H, δ<sup>18</sup>O) and elemental (Mn, Cd, Sb, Fe, Al, Zn, Ti, V, Sr, Tl, Co, Ga) indicators were identified for origin discrimination.
Conclusions
- Stable isotope ratios and elemental composition, analyzed with chemometrics and machine learning, provide a feasible approach for tracing the origin of tiger nut in China.
- The study successfully identified specific isotopic and elemental markers crucial for differentiating tiger nut provenance.
- This methodology offers a reliable tool for ensuring food authenticity and combating fraudulent labeling in the tiger nut market.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
A chemical symbol is an abbreviation used to indicate an element or an atom of an element. For example, the symbol for mercury is Hg. The same symbol is used to indicate one atom of mercury (microscopic domain) or to label a container of many atoms of the element mercury (macroscopic domain).
Some symbols are derived from the common English name of the element; others are abbreviations of the name in another language — Latin, Greek or German. For example, the symbol for aluminum (common name)...
Elements have a set number of protons that determines their atomic number (Z). For example, all atoms with eight protons are oxygen; however, the number of neutrons can vary for atoms of the same element. The sum of the number of protons and the number of neutrons is the mass number (A). Atoms with the same atomic number but different mass numbers are called isotopes. Elements can have multiple isotopes, for example, carbon-12, carbon-13, and carbon-14.
An element's atomic mass, or weight,...
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
Overview
Elements are the smallest units of matter that cannot be broken down further by chemical processes. There are 118 known elements, but not all of these are naturally-occurring, and fewer still are essential for life. Living matter is composed primarily of carbon, nitrogen, hydrogen, and oxygen, with smaller amounts of other elements like calcium, phosphorus, potassium, and sulfur. Other elements are also necessary for life but only in trace amounts.
The Periodic Table Provides...
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...