scholarly journals A Quick NIR Based Method for Ascertaining Coffee and Chicory Percentage in a Mixture

Author(s):  
Nanishankar Harohally ◽  
Cyril Thomas

<p>Coffee is a widely consumed beverage of the human population for several centuries. In coffee consuming countries encompassing India, Brazil, France, and parts of the USA, chicory is added to coffee as a substitute and to enhance the color of the beverage. There is hardly any non-destructive technique to ascertain the percentage of chicory and coffee in the solid mixture. Herein, we report a simple and quick near infrared spectroscopy (NIR) based method for quantification of coffee and chicory percentages in the solid mixture. The method has been developed for Arabica, Robusta variety coffee powder in addition to instant coffee powder. We evaluated a commercial coffee powder having reported values of 65 % of Coffee and 35 % of Chicory by employing the developed method. The achieved method revealed a result of 64.2 % of coffee and 35.8 % of Chicory. Results demonstrate the power of NIR spectroscopic method as a rapid technique for quantification of coffee and chicory percentage in the solid mixture which is expected to facilitate the consumer and coffee industry.</p>

2020 ◽  
Author(s):  
Nanishankar Harohally ◽  
Cyril Thomas

<p>Coffee is a widely consumed beverage of the human population for several centuries. In coffee consuming countries encompassing India, Brazil, France, and parts of the USA, chicory is added to coffee as a substitute and to enhance the color of the beverage. There is hardly any non-destructive technique to ascertain the percentage of chicory and coffee in the solid mixture. Herein, we report a simple and quick near infrared spectroscopy (NIR) based method for quantification of coffee and chicory percentages in the solid mixture. The method has been developed for Arabica, Robusta variety coffee powder in addition to instant coffee powder. We evaluated a commercial coffee powder having reported values of 65 % of Coffee and 35 % of Chicory by employing the developed method. The achieved method revealed a result of 64.2 % of coffee and 35.8 % of Chicory. Results demonstrate the power of NIR spectroscopic method as a rapid technique for quantification of coffee and chicory percentage in the solid mixture which is expected to facilitate the consumer and coffee industry.</p>


2021 ◽  
pp. 101189
Author(s):  
Alin Khaliduzzaman ◽  
Ayuko Kashimori ◽  
Tetsuhito Suzuki ◽  
Yuichi Ogawa ◽  
Naoshi Kondo

2015 ◽  
Vol 671 ◽  
pp. 356-362 ◽  
Author(s):  
Zhi Feng Chen ◽  
Yuan Quan Hong ◽  
Chang Jiang Wan ◽  
Lian Ying Zhao

A fast non-destructive method of detection of wool content in blended fabrics was studied based on Near Infrared spectroscopy technology in order to avoid the time-consuming, tedious work and the destruction of samples in the traditional inspection. 621 wool/nylon, wool/polyester and wool/nylon/polyester blended fabrics were taken as research objects. To get the wool content, we established the wool near-infrared quantitative model by partial least squares (PLS) method after analyzing the color and composition of the samples. For verifying the validity and practicability of the model, 100 samples were chosen as an independent validation set. The variance analysis shows that there is no significant difference between Near Infrared fast detection method and national standard method (GB/T2910-2009),which indicates that this method is expected to be a means of fast non-destructive detection and will have extensive application future in the field of wool content detection.


LWT ◽  
2019 ◽  
Vol 103 ◽  
pp. 101-107 ◽  
Author(s):  
Lívia C. Carvalho ◽  
Marcondes L. Leite ◽  
Camilo L.M. Morais ◽  
Kássio M.G. Lima ◽  
Gustavo H.A. Teixeira

2021 ◽  
Vol 22 (18) ◽  
pp. 9940
Author(s):  
Soo-In Sohn ◽  
Subramani Pandian ◽  
Young-Ju Oh ◽  
John-Lewis Zinia Zaukuu ◽  
Hyeon-Jung Kang ◽  
...  

Near-infrared spectroscopy (NIRS) has become a more popular approach for quantitative and qualitative analysis of feeds, foods and medicine in conjunction with an arsenal of chemometric tools. This was the foundation for the increased importance of NIRS in other fields, like genetics and transgenic monitoring. A considerable number of studies have utilized NIRS for the effective identification and discrimination of plants and foods, especially for the identification of genetically modified crops. Few previous reviews have elaborated on the applications of NIRS in agriculture and food, but there is no comprehensive review that compares the use of NIRS in the detection of genetically modified organisms (GMOs). This is particularly important because, in comparison to previous technologies such as PCR and ELISA, NIRS offers several advantages, such as speed (eliminating time-consuming procedures), non-destructive/non-invasive analysis, and is inexpensive in terms of cost and maintenance. More importantly, this technique has the potential to measure multiple quality components in GMOs with reliable accuracy. In this review, we brief about the fundamentals and versatile applications of NIRS for the effective identification of GMOs in the agricultural and food systems.


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