VOCC: a database of volatile organic compounds in cancer

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 114783-114789 ◽  
Author(s):  
Subhash Mohan Agarwal ◽  
Mansi Sharma ◽  
Shehnaz Fatima

Volatile organic compounds in cancer database (VOCC) has been developed, which provides comprehensive information of VOCs distinctly observed in cancer vs. normal from various malignancies and different sources.

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2365 ◽  
Author(s):  
Siti Zakaria ◽  
Norashikin Saim ◽  
Rozita Osman ◽  
Zaibunnisa Abdul Haiyee ◽  
Hafizan Juahir

This study analyzed the volatile organic compounds (VOCs) of three mango varieties (Harumanis, Tong Dam and Susu) for the discrimination of authentic Harumanis from other mangoes. The VOCs of these mangoes were extracted and analysed nondestructively using Head Space-Solid Phase Micro Extraction (HS-SPME) coupled to Gas Chromatography-Mass Spectrometry (GC-MS). Prior to the analytical method, two simple sensory analyses were carried out to assess the ability of the consumers to differentiate between the Harumanis and Tong Dam mangoes as well as their preferences towards these mangoes. On the other hand, chemometrics techniques, such as principal components analysis (PCA), hierarchical clustering analysis (HCA), and discriminant analysis (DA), were used to visualise grouping tendencies of the volatile compounds detected. These techniques were successful in identifying the grouping tendencies of the mango samples according to the presence of their respective volatile compounds, thus enabling the identification of the groups of substances responsible for the discrimination between the authentic and unauthentic Harumanis mangoes. In addition, three ocimene compounds, namely beta-ocimene, trans beta-ocimene, and allo-ocimene, can be considered as chemical markers of the Harumanis mango, as these compounds exist in all Harumanis mango, regardless the different sources of the mangoes obtained.


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