Detecting adulteration of stingless bee honey using untargeted H-1 NMR metabolomics with chemometrics

Yong, Chin-Hong and Muhammad, Syahidah Akmal and Abd Aziz, Fatimatuzzahra' and Nasir, Fatin Ilyani and Mustafa, Mohd Zulkifli and Ibrahim, Baharudin and Kelly, Simon D. and Cannavan, Andrew and Seow, Eng-Keng (2022) Detecting adulteration of stingless bee honey using untargeted H-1 NMR metabolomics with chemometrics. Food Chemistry, 368. ISSN 0308-8146, DOI

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As stingless bee honey (SBH) is gaining in popularity in the Malaysian market, it is now prone to adulteration. The higher price of SBH compared to floral honey has led to the use of unusual adulterants such as vinegar and even floral honey to mimic the unique taste and appearance of SBH. Since the current AOAC 998.12 method fails to detect these adulterants as their delta C-13 values are in the range for C-3 plants, untargeted H-1 NMR metabolomics was proposed. Principal component analysis of SBH H-1 NMR fingerprints was able to distinguish authentic SBHs from adulterated ones down to 1% adulteration level for selected adulterants. Discriminant analysis showed promising results in distinguishing the preliminary datasets of authentic SBHs from the adulterated ones, including discriminating SBHs adulterated with different adulterants derived from C-3 and C-4 plants. Hence, to assure any emerging adulterant can be detected, all H-1 NMR regions should be considered.

Item Type: Article
Funders: Ministry of Higher Education, Malaysia under the Fundamental Research Grant Scheme (FRGS) [Grant No: USM 203/PTEKIND/6711612], Kuok Foundation
Uncontrolled Keywords: Chemometrics; Honey adulteration; Metabolomics; NMR; Stingless bee honey
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Faculty of Pharmacy
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 25 Apr 2022 07:13
Last Modified: 25 Apr 2022 07:13

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